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The case concerned a company making domestic and cross-border supplies of goods through third-party carriers. Domestic transport took between two and seven days, while international deliveries could take up to several weeks. The transactions were carried out under the Incoterms DAP rule.
According to the facts presented by the company, the right to dispose of the goods as owner passed to the customer only when the consignment was collected from the carrier. Consequently, the release of the goods from the warehouse and the commencement of transport did not yet constitute a supply within the meaning of Article 7(1) of the Polish VAT Act.
Determining the date of supply requires a case-by-case assessment of when the customer acquires the effective ability to dispose of the goods as owner. This does not necessarily coincide with the formal transfer of legal title. The contractual provisions, the agreed allocation of risk and the way in which the transaction is performed in practice are all particularly relevant.
Although Incoterms rules may form an important part of this assessment, they do not, in themselves, determine when a supply takes place for VAT purposes. It is also necessary to establish the legal and commercial consequences that the parties have actually attached to the agreed delivery terms.
The company intended to issue invoices when the goods were handed over to the carrier. As a general rule, this is permitted under Article 106i(7) of the Polish VAT Act, which provides that an invoice may not be issued more than 60 days before the supply takes place or before all or part of the payment is received.
The difficulty was that, when issuing the invoice, the company did not know the date on which the consignment would actually be collected. The delivery date could change for reasons beyond its control, and the relevant information would only become available later from transport documents, proof of delivery or the carrier’s tracking system.
The company therefore proposed issuing invoices without specifying the date of supply and subsequently recording them in its VAT records for the period in which the goods were actually collected by the customers.
The Director of KIS agreed with the company’s position. The authority referred to Article 106e(1)(6) of the Polish VAT Act, under which an invoice must state the date on which the supply of goods was made or completed, provided that this date has been determined and differs from the invoice issue date.
Where the date of supply is objectively unknown when the invoice is issued, this condition is not met. The taxpayer may therefore issue an invoice without specifying the date of supply, and the invoice remains formally valid.
The ruling should not, however, be interpreted as granting taxpayers a general right to omit the date of supply. It applies to a specific model in which the invoice is issued before the supply takes place and the actual delivery date cannot yet be established. If the supply has already taken place or its date is known, that date should be included on the invoice if it differs from the invoice issue date.
KIS also confirmed that the company would not be required to issue a corrective invoice once it had obtained information confirming the actual date on which the goods were collected.
A corrective invoice is required, among other circumstances, where an error has been identified in the original document. In the case under consideration, however, the omission of the delivery date did not constitute an error. The invoice was correct in light of the circumstances existing when it was issued because the relevant date had not yet been determined. Establishing that date at a later stage does not alter the original invoice’s status or create an obligation to supplement it.
This is an important conclusion for businesses that have previously entered an estimated date of supply on their invoices and subsequently issued corrections whenever the goods reached the customer on a different date.
The simplification concerning invoicing does not alter the rules governing the tax point. Under Article 19a(1) of the Polish VAT Act, VAT generally becomes chargeable when the goods are supplied. Issuing an invoice in advance does not bring the tax point forward.
For example, if an invoice is issued on 29 September but the customer collects the consignment on 2 October and, under the agreed terms, acquires the right to dispose of the goods as owner only on that date, the transaction should be reported for October.
The seller must therefore still establish and document the actual date of supply. This information is necessary to report the transaction in the correct VAT period, even if it is not shown on the invoice. In practice, this may require the accounting system to be integrated with warehouse records and data received from carriers.
Receiving an invoice before delivery does not automatically entitle the customer to deduct input VAT. Under Article 86(10) and Article 86(10b)(1) of the Polish VAT Act, the right to deduct generally arises in the period in which VAT becomes chargeable in respect of the purchased goods, but no earlier than the period in which the taxpayer receives the invoice.
If the customer receives an invoice towards the end of a month but the goods are not delivered until the following month, input VAT should not be deducted in the period in which the invoice was received. The actual date of supply must instead be established on the basis of transport documents, proof of delivery or other reliable evidence.
The ruling confirms that an invoice should be assessed by reference to the information available when it was issued. A taxpayer cannot be required to state a delivery date that could not objectively have been determined at that time or subsequently correct a document that complied with the statutory requirements from the outset.
Before adopting this approach, however, businesses should review their terms of sale, determine when economic control over the goods passes to the customer and establish how delivery is documented. The flow of information between the logistics and accounting functions may also need to be adjusted. Omitting the date of supply from an invoice may simplify the invoicing process, but it does not remove the obligation to determine the correct VAT reporting period.
It should also be remembered that an individual tax ruling directly protects only the applicant and only in relation to the facts described in the application. For other businesses, the ruling provides valuable interpretative guidance, but adopting a similar approach should be preceded by an analysis of their specific delivery model.
The Polish Tax Ordinance currently does not impose a general expiry date on individual tax rulings. This does not mean, however, that a ruling, once obtained, will protect the taxpayer indefinitely.
A ruling provides protection only if the transaction or arrangement carried out in practice corresponds to the facts or future event described in the application. Its protective effect may also be limited by an amendment to the applicable legislation, the issuance of a general tax ruling, the amendment or revocation of the individual ruling, or the application of statutory provisions that exclude protection in certain circumstances. The absence of a fixed validity period therefore means that a ruling does not expire solely because time has passed. It does not amount to unlimited or unconditional protection.
According to the Ministry of Finance, the current system nevertheless allows rulings to remain in circulation even though they no longer reflect prevailing case law, the practice of the tax authorities or current commercial realities. It may also result in unequal treatment. A business holding a favourable ruling issued many years ago may continue to benefit from protection that would not be available to another taxpayer applying today in relation to the same issue.
Draft Bill UD445 seeks to address this problem by introducing a five-year validity period for individual tax rulings. The end of this period would not necessarily mean that the protection is lost permanently. Taxpayers would be able to apply for an extension for a further five years.
For rulings concerning future events, the extension procedure is intended to be simplified and free of charge. The draft also provides for a tacit extension mechanism. If a taxpayer submits a valid application and the authority fails to decide it before the ruling expires, the ruling’s protective effect would automatically be extended for another five years. A similar mechanism would apply to clearance opinions on the application of withholding tax preferences. Their validity would be extended from 36 months to five years, with the option of applying for further extensions.
The reform would not be limited to rulings issued after the new legislation enters into force. Transitional rules are also proposed for rulings already in circulation.
Under the current proposals:
An application to extend an existing ruling could be submitted during the six months preceding its expiry date.
Consequently, even rulings issued many years ago would not continue to provide protection unless the taxpayer takes the necessary action. Businesses will therefore need not only to record the dates on which their rulings were issued, but also to identify which rulings continue to underpin their current tax treatment.
This will be particularly important for rulings concerning recurring transactions or long-term business models, including the VAT treatment of composite supplies, applicable tax rates, input VAT recovery, intragroup settlements, withholding tax obligations and the classification of income generated under particular contractual arrangements.
The passage of five years would not be the only factor limiting the effect of a ruling. Under the draft legislation, an amendment to the tax provisions addressed by a ruling would cause it to expire by operation of law.
This is significant in practice. The loss of protection would not require the tax authority to issue a separate decision. Instead, it would follow automatically from the change in the legal basis. Taxpayers would therefore need to determine whether an amendment affects a ruling they hold and from what date they can no longer safely rely on it.
Draft Bill UD445 would also require individual rulings to be revoked where they conflict with subsequently issued official tax guidance. A comparable mechanism already applies where an individual ruling is inconsistent with a general tax ruling.
The EUREKA tax rulings database would show the validity period of individual rulings and indicate where a document has become outdated as a result of legislative amendments. Outdated general rulings and official tax guidance would also be marked accordingly. This should make the database easier to use, as it currently contains numerous rulings relating to provisions that are no longer in force.
The proposed time limit would be accompanied by an extension of the scope of taxpayer protection. One of the most important proposals concerns tax consequences arising before an individual ruling is formally served on the applicant. Under the current rules, the date on which a ruling is served affects the extent of the protection available to a taxpayer who follows the authority’s position. The draft legislation would extend that protection to tax consequences arising before service of the ruling. This may be particularly relevant where a taxpayer applies after beginning to implement a particular business model or where tax consequences arise while the application is still being considered.
The reform would also affect general tax rulings. In respect of tax consequences arising before a general ruling is published, taxpayers would be able to choose between following the interpretation set out in the new general ruling and relying on the protection afforded by the tax authorities’ previously established interpretative practice.
The definition of established interpretative practice and the conditions for relying on it would also be clarified. Tax authorities would be expressly required to take such practice into account in tax proceedings.
General tax rulings would be required not only to explain how the relevant provisions should be interpreted, but also to describe the tax consequences of the interpretation adopted. This may increase their practical value, particularly where they affect transactions or settlements completed before publication.
Draft Bill UD445 would also change the way applications are dealt with where they cover issues already addressed in a general tax ruling or official tax guidance.
If only some of the taxpayer’s questions concern matters already resolved in a published position of the Minister of Finance, the authority would be able to discontinue the proceedings as moot in respect of those questions. It would still be required to consider the remaining issues. This is intended to ensure that the fact that one question no longer requires a separate determination does not prevent the taxpayer from obtaining answers to the other matters raised in the same application.
The authority would not be permitted to refer the applicant to existing materials in general terms. It would have to identify the relevant general ruling or official tax guidance, indicate where it was published and quote the section addressing the issue raised by the applicant.
The deadline for remedying formal or substantive deficiencies in an application would also be extended from 7 to 14 days. The formal requirements applicable to applications would be set out directly in legislation, while the relevant forms would be published in the Public Information Bulletin (BIP).
The first stage of the reform concerning local taxes has already been enacted. The Act of 29 May 2026 amending the Polish Tax Ordinance was published on 23 June 2026 in the Polish Journal of Laws of 2026, item 825, and will enter into force on 24 September 2026.
The amendment requires tax rulings issued by local government tax authorities to be submitted for publication in the central EUREKA tax rulings database. At present, anonymised rulings are published on the websites of individual authorities, meaning that businesses wishing to determine the practice adopted by different municipalities must search numerous separate sources.
Central publication will make it easier to access rulings concerning matters such as real estate tax, tax on means of transport and local charges. It should also facilitate the identification of inconsistencies between positions taken by different authorities.
Publication in the EUREKA database will not, in itself, change which authority is responsible for issuing a ruling. Until the further reform enters into force, that responsibility will remain with local government tax authorities – in practice, primarily commune heads (wójt), mayors (burmistrz) and city mayors (prezydent miasta).
Draft Bill UD450 goes further by proposing that responsibility for issuing individual rulings on taxes and charges administered by municipal tax authorities be transferred to the Director of the National Tax Information Service.
The purpose of centralisation is to reduce inconsistencies in the interpretation of legislation applied by approximately 2,500 municipalities. The current decentralised system is particularly problematic for businesses that own taxable property or carry out projects across several municipalities. A ruling issued by one municipal authority does not protect the taxpayer in another municipality, even where the facts and the relevant legal provisions are identical.
Following the reform, taxpayers would submit their applications to a single ruling authority. Municipalities would not, however, be excluded from the procedure. The Director of the National Tax Information Service would be required to provide the competent municipal tax authority with the issues raised in the application and a draft of the proposed ruling. The municipality would have 14 days to issue an opinion. Failure to respond within that period would be treated as approval of the draft.
In the circumstances specified by law, the municipal authority would also be entitled to challenge the ruling before a Voivodeship Administrative Court. Such a challenge would have a significant consequence for the taxpayer: the ruling’s protective effect would be suspended until the proceedings had been finally concluded. Under the current proposals, protection would take effect only once the municipality’s challenge had been dismissed or rejected by a final court ruling.
Centralisation would not deprive local authorities of their powers to set tax rates and exemptions, assess and collect taxes, or conduct audits. The reform would change only the authority responsible for issuing individual tax rulings.
The proposed effective date is 1 July 2027. Draft Bill UD450 is, however, still at the legislative preparation stage.
The proposed reform changes the way individual tax rulings should be viewed. A ruling would no longer be a document requiring review only when the law or the taxpayer’s business model changes. Taxpayers would also need to monitor its validity period, the continued relevance of its legal basis, new general rulings and official tax guidance, and the deadline for filing an extension application.
Businesses should therefore consider reviewing their existing rulings now to determine:
Rulings concerning long-term and recurring tax arrangements require particular attention. In such cases, the loss of protection may affect not merely a single transaction, but the tax treatment of an entire area of the business.
Draft Bills UD445 and UD450 are scheduled for adoption by the Council of Ministers in the fourth quarter of 2026, so their final form may still change. Nevertheless, the overall direction of the reform is already clear: the duration of protection afforded by individual tax rulings is to be limited, and maintaining that protection will require regular review and proactive steps by taxpayers.
The proposed tax changes form part of a broader regulatory focus in Poland on how B2B contracts are used in practice. Since 8 July 2026, new rules have also been in force strengthening the powers of the Polish National Labour Inspectorate in relation to civil-law contracts and B2B arrangements that, in practice, replace an employment relationship. The labour inspection reform and the UD116 bill concern different areas of law, but together they indicate that both the actual manner in which cooperation is performed and the tax structure applied to it will be subject to closer scrutiny.
The UD116 bill is currently at the government legislative stage. According to the Polish government’s legislative agenda, its adoption by the Council of Ministers is planned for the third quarter of 2026. The final wording of the proposed rules may therefore still change.
One of the most important proposals is the introduction of a 17% lump-sum tax rate on revenue from services provided to a related party.
The change may primarily affect shareholders who also operate as sole traders and invoice their own companies. In practice, this often concerns fees for advisory, IT, marketing, administrative, commercial or management-related services.
Providing services to one’s own company is not prohibited under Polish law. However, the Polish Ministry of Finance has raised concerns about arrangements in which B2B remuneration may, in economic terms, replace the distribution of dividends.
In Poland, dividends are subject to 19% personal income tax and are not tax-deductible for the company. By contrast, where services are invoiced under a B2B arrangement, the company may generally recognise the remuneration as a tax-deductible cost, while the shareholder may tax the revenue under the lump-sum regime.
Under the proposed rules, such services would be taxed at 17% of revenue. This means that tax would be calculated on the gross value of the invoices, without any deduction for business expenses.
This would not automatically result in every agreement between a shareholder and their company being challenged. It would, however, be necessary to determine whether the parties qualify as related parties under Polish tax law and whether the service falls within the scope of the new rate.
The proposed changes would also cover rental and lease income received from related parties. This may include situations in which a shareholder lets office space, a warehouse, an industrial facility or another property to their own company.
Under the current Polish rules, private rental income is subject to lump-sum tax at:
According to the version of the proposal currently being discussed, where property is let to a related party, the rate applicable to revenue exceeding PLN 100,000 would increase to 15%.
The purpose of the change is to limit structures in which the company deducts rent paid to the shareholder as a business expense, while the shareholder taxes the corresponding income under the lump-sum regime.
The letting arrangement itself would remain permissible, but its overall tax efficiency could be reduced.
Entrepreneurs should also bear in mind that a related party is not limited to a company in which the landlord directly holds shares. Related-party status may also arise from indirect control, significant influence or family relationships.
The higher lump-sum rate would also apply to certain income from rental, lease or similar agreements involving intellectual property rights where the agreement is concluded with a related party.
In practice, this may concern arrangements in which a shareholder owns a trademark, business name, logo or another proprietary right and licenses or otherwise makes it available to their company in return for payment.
The company may recognise the payment for the use of the right as a tax-deductible expense, while the shareholder receives remuneration taxed under the lump-sum regime.
The proposed tax rate for this type of income is 17%. The change could therefore reduce the attractiveness of structures in which licence fees or payments for the use of intellectual property also serve as a means of transferring funds from the company to its shareholder.
Another significant change may affect entrepreneurs providing services that are currently subject to Poland’s 8.5% lump-sum tax rate.
Under the version of the bill currently being discussed, an entrepreneur who does not employ at least one full-time employee throughout the relevant tax year would have to apply a 15% rate to the portion of annual revenue exceeding PLN 100,000. Revenue up to that threshold would continue to be taxed at 8.5%.
This may be particularly relevant for sole traders whose annual revenue exceeds PLN 100,000 but who do not require employees due to the nature of their activities. Potentially affected groups may include consultants, trainers, marketing specialists and other professionals who provide services independently.
The right to retain the lower rate would be linked to maintaining the required level of employment throughout the period in which the business is operated during the relevant tax year.
If the entrepreneur ceased to employ the required person during the year, it might be necessary to recalculate the lump-sum tax due on revenue earned from the beginning of that year.
One of the most significant proposed changes for Poland’s technology sector concerns access to the Polish IP Box regime.
Under the current rules, qualifying income from specified intellectual property rights may be taxed at a preferential rate of 5%. The regime is commonly used by software developers operating as sole traders who independently create or develop software as part of research and development activities.
The UD116 proposal would make access to the IP Box regime conditional on employing at least three individuals who are not related to the taxpayer.
As a result, actually carrying out research and development, creating qualifying intellectual property and maintaining the required tax records may no longer be sufficient to apply the 5% rate.
In practice, the change could exclude a significant number of independent specialists from the preferential regime.
UD116 also provides for IP Box income to be included in the tax base used to calculate Poland’s solidarity levy.
The solidarity levy is charged at 4% on the portion of certain categories of income exceeding PLN 1 million. Following the proposed changes, income taxed under the 5% IP Box rate would also be taken into account when determining whether the taxpayer has exceeded that threshold.
The bill is also intended to confirm that the solidarity levy base may be reduced by tax losses carried forward from previous years, but only where those losses arise from the same source of income included in the levy calculation.
Other deductions and tax reliefs available under the Polish personal income tax system would not automatically reduce the solidarity levy base.
The bill also addresses a common arrangement involving vehicles purchased after the end of an operating lease and subsequently transferred to close family members.
The proposed change concerns situations in which an entrepreneur purchases a vehicle into their private assets, gives it to a close family member and the recipient subsequently sells it.
Under the proposed rules, the sale would be subject to personal income tax if it takes place within three years of the recipient acquiring the vehicle.
The gift itself may still qualify for an exemption from Polish inheritance and gift tax, provided that the relevant statutory conditions are met. However, the possibility of quickly selling the vehicle without personal income tax would be restricted.
The UD116 bill does not signal the end of the B2B model in Poland. It could, however, materially affect the tax efficiency of certain business structures.
The proposals should be reviewed in particular by individuals who:
As the bill has not yet been adopted by the Polish Council of Ministers, it is too early to implement definitive changes to existing business structures. Nevertheless, taxpayers should already consider estimating the potential increase in their tax burden and preparing alternative tax scenarios before the beginning of 2027.
Particular attention should be paid to the final scope of services subject to the 17% rate, the detailed construction of the employment requirements and the rules used to determine whether entities are related parties for Polish tax purposes.
The amendment does not abolish MDR reporting altogether. However, the Polish legislator is moving away from solutions that went beyond the EU standard resulting from the DAC6 Directive. In practice, this means, above all, abolishing the obligation to report domestic tax schemes and focusing the reporting regime on cross-border arrangements.
For many businesses, this will be a genuine simplification. Until now, Polish MDR rules have also covered arrangements involving only Polish taxpayers and the Polish tax jurisdiction. As a result, MDR analyses were required not only for complex international structures, but also for many business activities carried out entirely in Poland. Following the changes, this scope will be significantly reduced.
The amendment introduces several groups of changes which, taken together, reshape the existing reporting model. The most important changes include:
The catalogue of changes is broad, but their common objective is to reduce excessive formalism and bring Polish regulations closer to the EU standard. At the same time, this does not remove the responsibility for properly assessing cross-border arrangements.
The most significant change is the removal of the obligation to report domestic tax schemes. From the very beginning, this solution raised numerous practical concerns, as the Polish rules in this respect were broader than the requirements arising under EU law.
Once the amendment enters into force, businesses operating solely in Poland will no longer need to analyse domestic arrangements for MDR purposes to the same extent as before. This should reduce the number of analyses carried out solely as a precautionary measure and ease the documentation burden on tax, finance and legal departments.
However, MDR obligations will remain relevant for cross-border arrangements. Particular attention will still need to be paid to, among others, intra-group transactions, foreign financing, reorganisations involving several countries, payments to foreign entities and holding structures with an international element.
The amendment also changes the way tax schemes are identified under Polish MDR rules. The basic definitions and the catalogue of hallmarks are being revised. Particularly important is the removal of the so-called other specific hallmarks, which did not result directly from the DAC6 Directive.
In practice, this should reduce situations where an MDR analysis was required for arrangements that had primarily commercial justification. Reporting is intended to focus more closely on cases corresponding to the EU model for the exchange of information on potentially aggressive cross-border tax arrangements.
In addition, VAT and excise duty will be excluded from the scope of MDR. This is another element narrowing Polish rules to the area that should remain subject to reporting obligations under the EU standard.
The new rules also reorganise the roles of entities involved in an arrangement. Until now, Polish MDR provisions distinguished between a promoter, a user and a supporter. In practice, this structure did not always make it easier to determine which entity was responsible for fulfilling the reporting obligation.
The amendment removes the separate category of supporter. Activities performed by such an entity will instead be assessed by reference to their significance for designing, making available, implementing or managing the implementation of an arrangement. If the involvement of a given entity is material, it may be classified as a promoter.
The rules governing cooperation between the promoter and the user will also change. Greater importance will be attached to documenting who reported the tax scheme, to whom the Tax Scheme Number was provided, and whether the other parties involved in the arrangement were properly informed that the reporting obligation had been fulfilled.
The amendment also introduces important changes for entities bound by professional secrecy under Polish law, in particular tax advisers, attorneys-at-law, advocates and patent attorneys.
If reporting information on a tax scheme would breach legally protected professional secrecy, such an entity will not be required to make the report. Instead, such an entity will be required to notify the relevant promoter or, where no other promoter is involved, the user, that information on the tax scheme must be submitted to the Head of the Polish National Revenue Administration.
This is an important clarification of the relationship between MDR reporting obligations and the protection of professional secrecy. Until now, this area has been one of the more problematic aspects of applying the Polish MDR rules in practice.
The amendment also provides for procedural simplifications. MDR-2, i.e. the tax scheme notification, will be abolished. The rules for submitting MDR-3 reports will also change. Information on the application of a tax scheme is to be submitted once a year, separately for each reported tax scheme. In addition, MDR-3 will be able to be signed by an authorised representative, which should make reporting easier in larger organisations.
The obligation to maintain a formal internal MDR procedure will also be abolished. This does not mean, however, that businesses should completely abandon internal mechanisms for identifying reportable tax schemes. The obligation to properly assess cross-border arrangements will remain in force, as will the risk associated with incorrect classification or late reporting.
In practice, it may therefore be advisable to retain simplified internal rules. Their purpose will no longer be merely to comply with a formal procedural requirement, but to ensure proper information flow, allocation of responsibility and documentation of decisions made in the area of MDR.
One important element of the amendment is the exclusion of the possibility to obtain an individual tax ruling on MDR provisions. Taxpayers will therefore not be able to obtain formal confirmation as to whether a given arrangement constitutes a reportable tax scheme and whether it must be reported.
At the same time, the legislator has not decided to significantly reduce penalties for breaches of MDR obligations. This means that, although the scope of reporting will be narrowed, responsibility for the correct classification of cross-border tax schemes will remain an important area of risk.
The MDR amendment is beneficial for businesses because it removes excessive obligations connected with reporting domestic tax schemes and limits the system to cross-border arrangements. This is a significant simplification, particularly for companies operating solely in Poland.
However, this is not the end of MDR. For entities operating in an international environment, reporting obligations will remain an important element of tax compliance in Poland. Before 1 October 2026, businesses should therefore not only scale back their existing procedures, but also adapt them to the new model: narrower, less formal, but still requiring careful assessment of cross-border transactions.
One of the fundamental principles of Polish tax proceedings is the obligation to establish the facts of the case thoroughly and accurately. The tax authority must take all necessary steps to determine the actual circumstances relevant to the outcome of the case.
This does not mean, however, that only the authority is responsible for building the evidentiary record. The principle of active participation allows taxpayers to submit their own evidence and request that specific evidentiary measures be carried out.
Evidence in tax proceedings may include documents, accounting records, witness testimony, expert opinions and any other means capable of helping to establish the facts. The catalogue of admissible evidence is open-ended, giving taxpayers broad opportunities to demonstrate circumstances relevant to their case.
The key provision is Article 188 of the Polish Tax Ordinance Act. Under this rule, a taxpayer’s request to admit evidence should be granted if it
concerns facts that are relevant to the case, unless those facts have already been sufficiently established by other evidence.
In other words, the tax authority may not arbitrarily disregard evidence submitted by a taxpayer. If the evidence could help clarify material facts, it should generally be admitted.
This principle was confirmed by the Supreme Administrative Court of Poland in its judgment of 11 December 2025 (case no. I FSK 1820/24). The Court held that a tax authority may not refuse evidence favourable to a taxpayer merely because it considers the existing evidentiary record sufficient. Such an approach could result in selective evidence gathering and undermine the principles of objectivity and impartiality.
This position is particularly important in practice. In tax disputes, authorities sometimes focus primarily on evidence supporting their own conclusions while downplaying evidence presented by taxpayers. Polish administrative courts have consistently emphasised that such an approach is incompatible with procedural rules.
At the same time, a taxpayer’s right to submit evidentiary requests is not unlimited. Tax authorities are not obliged to admit every piece of evidence proposed by a party.
As the Supreme Administrative Court of Poland stated in its judgment of 11 April 2024 (case no. II FSK 1904/23), a refusal to admit evidence is justified not only where the relevant fact has already been sufficiently established by other evidence, but also where the fact in question is irrelevant to the outcome of the case or where the proposed evidence is incapable of proving that fact.
Similarly, in its judgment of 25 October 2023 (case no. I FSK 576/23), the Court stressed that Article 188 does not require authorities to grant every evidentiary request made by a taxpayer. A request may be refused where the relevant fact has already been established or where it is immaterial to the resolution of the case.
The Provincial Administrative Court in Poznań, Poland, reached a similar conclusion in its judgment of 21 March 2024 (case no. I SA/Po 874/23), holding that a taxpayer’s right to propose evidence does not automatically oblige the authority to carry out every requested evidentiary measure.
It should also be remembered that tax authorities are required to conduct proceedings efficiently and without undue delay. Consequently, requests that merely duplicate evidence already collected or cannot contribute to clarifying the facts of the case may be rejected. Admitting such evidence could unnecessarily prolong the proceedings.
From a taxpayer’s perspective, this means that evidentiary requests should be carefully prepared. Simply identifying a piece of evidence may not be sufficient. Taxpayers should explain which specific facts the evidence is intended to prove and why those facts are relevant to the outcome of the case.
A refusal to admit evidence is issued in the form of a procedural order. Importantly, under Polish tax procedure rules, such an order cannot be challenged by way of a separate interlocutory appeal.
This does not mean, however, that the authority’s decision is beyond review. The taxpayer may challenge the refusal in an appeal against the final tax decision.
If the matter subsequently reaches the administrative courts, the court will review the legality of the evidentiary proceedings and assess whether the authority had valid grounds for refusing the requested evidence.
It is worth noting that courts generally do not conduct evidentiary proceedings to the same extent as tax authorities. For this reason, submitting appropriate evidentiary requests during the audit or tax proceedings stage is often crucial to the effectiveness of a taxpayer’s defence.
The right to submit evidentiary requests is one of the key procedural safeguards available to taxpayers in disputes with Polish tax authorities. Although authorities are not required to admit every piece of evidence proposed by a taxpayer, any refusal must be based on specific legal grounds and properly justified. The practical takeaway is straightforward: taxpayers should actively participate in proceedings, submit evidence supporting their position, and ensure that their evidentiary requests are properly substantiated. In many cases, the outcome of a dispute with the tax authorities will depend largely on the evidentiary stage of the proceedings.
The case concerned a taxpayer providing IT implementation and system upgrade services. The projects were delivered in stages, with each stage subject to formal acceptance by the client. Acceptance was documented through protocols signed after the client had verified the work and had the opportunity to raise objections.
The contractual model included:
The taxpayer argued that, in such a model, a service (or part of it) is only performed once it has been accepted by the client. The tax authority took the opposite view, maintaining that performance occurs earlier (when the work is actually completed and submitted for acceptance) and thus the protocol serves merely as evidence of a taxable event that had already happened.
The courts of both instances (cases III SA/Wa 2823/22 and I FSK 1353/23) rejected the authority’s position.
The courts held that the key issue is whether the acceptance process:
Where these conditions are met, acceptance cannot be regarded as a purely formal step. In such cases, the signing of an acceptance protocol may determine when the service is performed for VAT purposes under Polish law.
The Supreme Administrative Court also confirmed that the principles established by the Court of Justice of the European Union in case Budimex (C-224/18) are of general application and are not limited to construction services.
According to that case law:
The Court expressly rejected the view that these principles apply exclusively to the construction sector.
This judgment forms part of a broader trend in Polish VAT jurisprudence, moving away from a strictly formal interpretation of “service performance” towards a more economic, substance-based approach.
A similar conclusion was reached in the judgment of the Supreme Administrative Court of 4 March 2026 (I FSK 1367/23), concerning dealer bonus schemes. In that case, the Court held that VAT liability arises only once the amount of the bonus has been finally determined and approved, rather than at the stage when the underlying activities are carried out.
This matter is particularly relevant for taxpayers operating under staged delivery models, especially in the IT sector.
However, it does not mean that signing an acceptance protocol automatically determines the timing of VAT liability. The following factors are critical:
Failure to meet these conditions may lead to disputes with the Polish tax authorities.
Despite the increasingly taxpayer-friendly approach in Polish jurisprudence, the practice of Polish tax authorities often remains more restrictive. As a result, taxpayers applying acceptance-based models should be prepared for potential disputes.
Each case should be preceded by an individual assessment, taking into account both the contractual arrangements and how they are implemented in practice.
Importantly, advance payments remain subject to the standard VAT rules. Any payment received before the service is performed (including those before acceptance) triggers VAT liability at the time of receipt – as a gross amount, comprised of both net and VAT.
The judgment of 31 March 2026 (I FSK 1353/23) confirms that, under Polish VAT law, the moment a service is performed may – in certain contractual models – be linked to its formal acceptance.
However, this is not an automatic rule. The decisive factor is whether acceptance constitutes a genuine element of the service and whether, without it, the service could be regarded as economically complete.
In this context, an acceptance protocol may move beyond a purely evidentiary function and become a key factor in determining the timing of VAT liability.
In principle, visualization is meant only to make the data contained in the XML structure easier to read. In practice, however, the two documents are not always fully consistent. The problem becomes particularly serious when the PDF includes different amounts, additional line items, or elements that do not appear in the invoice recorded in KSeF.
For accounting departments and accounting firms, this creates a real dilemma. When two documents related to the same transaction present different information, the key question becomes which one should be used as the basis for accounting entries and payment. In practice, this may lead to operational errors—for example, when the procurement team registers the invoice received by email while the accounting team simultaneously retrieves the same invoice from KSeF. In extreme cases, this can result in the same transaction being recorded twice in financial systems, creating a risk of duplicate payment or overstated VAT deductions.
Two main causes are typically identified for such discrepancies. The first involves simplifications introduced by some invoice issuers. In practice, this is sometimes justified by technical limitations of XML files, for example when invoices contain a very large number of line items. The second relates to IT implementation issues—particularly incorrect data conversion processes that result in the PDF visualization not fully reflecting the information contained in the XML structure.
Regardless of the underlying cause, the outcome is the same: the risk of parallel document circulation increases. In practice, a single sale may end up being documented in two different ways—once as a structured invoice in KSeF and again as a PDF document circulating outside the system.
For this reason, there are growing calls for the Ministry of Finance to clarify the rules. Clear guidance on the relationship between
a structured invoice and its visualization could reduce uncertainty for businesses and accounting teams and prevent situations in which two different versions of the same document circulate simultaneously in the market.
The essence of the judgment
The EU General Court held that the VAT Directive precludes national rules that make the input VAT deduction dependent from the date the purchase invoice is received. Under EU law, the right to deduct arises at the time the chargeable event occurs — i.e. when the goods are supplied or the services are performed.
Holding an invoice is a formal requirement for exercising that right, yet it does not determine when the right itself comes into existence. In practical terms, if a taxpayer has met the substantive conditions for deduction (the transaction actually took place, VAT was properly charged, and the purchase is used for taxable activities) and received the invoice before filing the VAT return for the relevant period, the deduction should be available in that period. Even if the invoice had been received after the end of that calendar period.
A practical example, based on Polish monthly VAT-reporting rules
Assume a transaction took place in February, and the invoice was received on 15 March. The deadline for filing the February VAT return is 25 March.
Under current Polish regulations and practice, the taxpayer could deduct the input VAT only in March, since that is when the invoice was received. Following the General Court’s judgment, this approach is incompatible with the VAT Directive. Since the chargeable event occurred in February and the invoice was received before the February return was filed, the deduction should be available in February.
Tension with Polish legislation
Polish rules explicitly linking the input VAT deduction to the date of receipt of the invoice are unfavorable for taxpayers, since it worsens their cash-flow. In practice, this shifts the right to deduct to a later reporting period, even where the taxpayer held the invoice before the filing deadline. On one hand, Polish regulations allow to issue a sales invoice (holding the buyer’s input VAT) till the 15th of the following month. On the other hand, the seller is obligated to report output VAT in the month of sale, while the buyer is only allowed to deduct input VAT at a later month.
The judgment challenges this framework. The Court clearly distinguished between the moment the right to deduct arises (a substantive matter) and the formal conditions for exercising it. Member States may not introduce rules that effectively alter the moment that right comes into existence where all substantive requirements under
the Directive are met.
Implications for businesses
The ruling is highly significant in practice. First, it may require amendments to Polish VAT legislation to ensure full compliance with EU law. Second, it opens the door to earlier VAT deductions – directly improving companies’ cash flow. Since the implementation of structured xml-invoicing in Poland (February/April 2026) eliminates the practice, in which a seller could mention an earlier date on the invoice (e.g. issuing a PDF-invoice on March 3rd, yet dated February 28th), thus creating a chance for a quicker input VAT deduction, this ruling seems to be a blessing. In an environment of rising financing costs and increasing pressure on liquidity, accelerating a VAT deduction by even one month can have a measurable economic impact.
What’s next?
In the coming months, we can expect discussions on aligning domestic provisions with EU standards. Taxpayers may also consider revisiting prior VAT settlements and, relying directly on the VAT Directive and the Court’s judgment, seek to assert their right to earlier deductions.
The ruling reaffirms that, in the balance between domestic formalism and the substantive right to deduct, the principle of VAT neutrality prevails. In practice, this may mark a meaningful shift in how input VAT is accounted for — and potentially set a new standard in the Polish VAT system.
The authority indicated that the mere fact that an invoice was issued outside KSeF does not automatically deprive tax-deductible costs, provided that the substantive requirements under the Polish CIT Act are met in the specific factual circumstances.
Under Article 15(1) of the Polish CIT Act, tax-deductible costs are expenses incurred in order to generate revenue or to preserve or secure a source of revenue – except for those expressly listed in Article 16(1).
In practice, for an expense to be recognized as tax-deductible, the following substantive and evidentiary conditions must be met jointly:
The authority emphasized that the actual nature of the transaction and its connection with revenue-generating activities are of primary importance. A purely formal aspect — such as the technical method of issuing the invoice — does not automatically determine whether the expense is deductible.
As a rule, the Polish CIT Act does not contain detailed provisions specifying the exact form in which expenses must be documented. However, pursuant to Article 9(1), taxpayers are required to maintain accounting records in a manner that allows to properly determine:
In practice, this means that taxpayers must hold reliable and credible accounting evidence confirming that a specific business transaction has taken place.
The individual tax ruling confirmed that:
— may constitute a valid basis for recognizing a tax-deductible expense, even if it was issued outside KSeF. However, provided that it meets formal requirements and reflects a genuine transaction between identifiable parties.
Accordingly, in the context of this ruling, greater weight was attached to the substance and reliability of the document than to the technical channel through which it was issued.
The ruling of 9 January 2026 neither abolishes nor limits the obligations arising from the regulations governing the operation of KSeF. Any failure to comply with e-invoicing requirements may give rise to separate formal consequences.
At the same time, the authority made it clear that the failure to issue an invoice through KSeF does not automatically result in the loss of the right to recognize the related expense as tax-deductible for CIT purposes.
From a practical standpoint, this confirms a fundamental principle applicable in income taxation: the right to deduct a cost is determined by substantive criteria and the genuine nature of the transaction, not solely by technical requirements relating to the form of the document.
In the context of the full rollout of KSeF, this ruling may serve as a relevant interpretative reference for taxpayers and advisors assessing CIT risks related to invoicing compliance.
The concept of a FE itself has not changed. It has long been part of the VAT system and has been extensively addressed in the European case law. What has changed is the practical relevance of FE in the KSeF environment. The latest tax authorities’ explanatory notes (issued on January 28th) introduce certain legal assumptions as to whether the seller may assume the invoice exchange via KSeF to be sufficient (i.e. no separate e-mails/PDF’s needed).
According to the explanatory notes, a Polish supplier is not required to carry out an in-depth assessment of whether a foreign customer actually has a FE in Poland in a substantive VAT sense. For the purposes of determining the correct invoicing method, the supplier may rely on formal and objectively verifiable criteria.
In this context, particular importance is attached to the use of a Polish VAT identification number by the foreign buyer. The mere allocation of a Polish VAT number does not, in itself, determine the existence of a FE. However, where a foreign counterparty (i) uses a Polish VAT number in a specific transaction yet (ii) does not provide the supplier with a statement confirming the lack of a Polish FE involved in that transaction, the Polish supplier may assume that such FE exists and is involved. As a result, the invoice may be issued exclusively via KSeF, with no obligation on the seller’s side to make it available to the buyer outside the system.
This presumption is procedural in nature and is intended to protect the Polish supplier when selecting the appropriate invoicing model. It does not determine whether a FE actually, nor does it conclusively qualify the foreign entity’s structure for VAT purposes. Nevertheless, the absence of a statement from the foreign B2B-buyer operates to its disadvantage, regardless of whether its presence in Poland is operational or purely auxiliary.
The explanatory notes further clarify that the mere existence of an office, branch or administrative facilities in Poland does not automatically give rise to a FE, provided that such structures do not actually participate in the supply of goods or the provision of services. The autonomous nature of the FE concept also means that the existence of a “permanent establishment” for corporate income tax purposes, or capital links with Polish entities, is not decisive for VAT purposes.
From the perspective of Polish suppliers, this approach increases legal certainty and stabilises invoicing processes by removing the need for a detailed, case-by-case verification of the foreign counterparty’s status. However, for foreign entities holding and using a Polish VAT number, it means that information relating to the existence or non-existence of a fixed establishment must be actively managed in relations with Polish suppliers. The absence of appropriate procedures and failure to submit no-FE statements may result in invoices being issued solely through KSeF.
In this sense, the explanatory notes give the concept of a fixed establishment a distinctly practical dimension. In the KSeF environment, using a Polish VAT number without an appropriate statement may result in a transaction being brought within the KSeF regime, regardless of the foreign entity’s actual operating model.
In practice, this requires foreign companies to consciously manage the risks associated with having a potential fixed establishment in Poland and to align their internal procedures with the requirements of KSeF. This includes, in particular, reviewing the operating model from an FE perspective, preparing and using no-FE statements or statements confirming the lack of FE involvement in specific transactions, and properly structuring invoicing rules and communication with Polish counterparties. In the worst-case-scenario, they might lose access to their Polish purchase invoices, which in turn could cause issues with crucial payments (e.g. energy).











