Invalidity of a transaction vs. deduction of VAT

27 October 2023 | Knowledge, News, Tax Focus, The Right Focus

According to the Supreme Administrative Court (Naczelny Sąd Administracyjny, NSA), a taxable person may not be deprived of the right to deduct VAT simply because a legal transaction is invalid from a civil law perspective. In this article, we will try to explain the NSA’s decision and what it means for taxpayers.

Right to deduct VAT

On 7 September 2023 (I FSK 897/19), the NSA ruled that transactions that are invalid under civil law due to non-compliance with form requirements may be subject to VAT. The NSA pointed out that it is the economic aspect of the transaction that is decisive, and not compliance with civil law.

The current NSA judgment is a consequence of the CJEU judgment of 25 May 2023 (C-114/22). In the latter, the Court of Justice stated that that authorities may not refuse the right to deduct VAT on the grounds of the fictitious nature of an economic transaction or a breach of civil law, unless they prove that certain conditions are met, i.e. that the transaction is to be regarded as fictitious or, in the case of a transaction actually carried out, that it is the result of VAT fraud or an abuse of the law.

Decision of the Revenue Administration Chamber on a contract concluded ‘with oneself’

The case concerned a lease entered into between a limited liability company and a married couple who owned a plot of land. Crucially, the spouses have joint ownership of assets and, at the same time, are the sole shareholders of the company and, as members of the Management Board, with the sole power to represent the company.

The Director of the Revenue Administration Chamber (Izba Administracji Skarbowej, IAS) noted that the building permit had been issued in favour of natural persons who were both the owners of the land and the sole shareholders of the company. In addition, the Director of the IAS noted that the source of financing for the transaction was the own funds of the shareholders of the company, who were also the owners of the land, and that the transaction itself did not make economic sense. Therefore, he denied the company the right to deduct input tax.

In our opinion, the tax authorities’ refusal of the right to deduct input VAT is based on two grounds. First, the authorities argued that the lease agreement, having no economic sense, was contrary to the rules of social conduct, since the company, while bearing the cost of leasing the property, would not receive any remuneration for the construction of the building, which was an investment of the spouses. As a second argument, the authorities contested the lease agreement, pointing out that it had been concluded with ‘oneself’.

Invalid civil law transactions may have VAT consequences

As a basis for denying the right of deduction, the authorities referred to Article 88(3a)(4)(c) of the VAT Act, which states that taxable persons may not reduce the amount of tax due if an invoice issued confirms activities to which Articles 58 and 83 of the Civil Code apply – in the part relating to those activities. Article 58 of the Civil Code provides for “nullity” in cases where a legal transaction is contrary to the law, is intended to circumvent the law or is incompatible with the rules of social conduct. Article 83 of the Civil Code, on the other hand, defines a legal transaction that is deemed to have been made under false pretences.

The NSA rightly pointed out that the issue of deducting VAT on transactions affected by a legal defect under civil law has been the subject of CJEU case law. Moreover, the NSA’s reasoning was based on a CJEU judgment (C-114/22), according to which taxable persons cannot be deprived of the right to deduct input VAT merely because a transaction is considered to be fictitious and invalid under national civil law and not at the level of EU legislation.

The operative part of the CJEU judgment was based on the principle of neutrality, which is a fundamental principle of the common VAT system. The CJEU pointed out that, in order to deny taxable persons the right to deduct input tax, the authorities must prove that the transaction in question was carried out in connection with fraud or abuse. According to the CJEU, it is one thing to abuse a right in order to obtain a tax advantage under VAT and another to carry out a transaction that is invalid under national law. Therefore, if the transaction has in fact been carried out, the authorities cannot deny the right to deduct input tax.

In addition, it is for the tax authority to prove that a taxable person has committed fraud and that the transaction itself is the result of such fraud. Only if the tax authority proves that the transaction is artificial or does not reflect reality within the meaning of EU legislation is it entitled to deny the taxable person the right of deduction.

From the perspective of VAT regulations, it is not the civil law conformity of a transaction that is decisive, but its economic aspect – a transaction that is invalid under civil law may have VAT consequences and thus a taxable person may be entitled to deduct input VAT, provided that the goods or services purchased have been used to carry out taxable transactions.

What does this mean for taxable persons

The NSA’s judgment confirms the changing trend in case law initiated by the CJEU. This may lead to a change in the provisions of the VAT Act. The key question, however, is what form this change may take.

There are two scenarios: either the lawmakers develop new definitions of the terms “fictitious transaction” and “transaction invalidity” for the purposes of tax regulations, or refer to the definition contained in EU legislation.

Nevertheless, it should be borne in mind that each case is different and requires detailed analysis. Our tax team can provide full assistance in this area.

Any questions? Contact us:

Jakub Dittmer

Jan Janukowicz


See other Tax Focus issues

Latest Knowledge

Banking sector overview | Banking today and tomorrow | June 2026

According to a statement published by GPW Benchmark, the reference rate administrator, and the Polish Financial Supervision Authority (KNF), which oversees the administrator, 31 December 2036 will be the last day on which the WIBID and WIBOR rates will be provided for all key fixing periods: 1 month (1M), 3 months (3M) and 6 months (6M).

How to correctly calculate length of service from 1 May 2026

New rules for calculating length of service have applied to private sector employers since the beginning of May 2026. With companies continuing to express concerns about the new framework, the Ministry of Family, Labour and Social Policy has addressed the most common questions. We look at the issues that are (still) troubling employers and how we can help.

Tax settlement agreement: A new tool in the General Tax Code

A draft bill amending the General Tax Code (No. UDER110) has been submitted for consideration by the Council of Ministers. The bill introduces the tax settlement agreement, a new form of amicable dispute resolution between taxpayers and the tax authority. The draft is open for inter-ministerial review and public consultation until 19 June, with the proposed date of entry into force being 1 January 2028. Below, we examine who may apply for a settlement agreement, when, and on what terms, and how the process may work in practice.

A revolutionary reform of Poland’s capital market – ETFs and the Qualified Investment Fund

Poland’s capital market is on the cusp of one of the most significant reforms in recent years, which will fundamentally reshape the regulatory framework for ETFs and introduce an entirely new investment vehicle: the Qualified Investment Fund (QIF/KFI). This is a response to market demands and presents an opportunity for Poland to close the gap with countries such as Luxembourg and Ireland, with the overarching objective of boosting competitiveness and stemming the outflow of investment capital abroad. The new regulations aim to deliver greater flexibility for investors and fund managers alike, while also aligning with current market trends and European standards. We examine what is changing in practice and what it means for all market participants.

Directive 2024/825 – the European Union’s response to greenwashing

Greenwashing poses one of the most significant challenges to the consumer protection framework in the European Union. As customers become increasingly environmentally conscious, brands are ever more inclined to leverage this interest by invoking the language of environmental protection, sustainable development and climate neutrality. Yet these claims do not always reflect the actual characteristics of their products or services. The EU has sought to bring systemic order to this area by clarifying the information obligations of traders and broadening the list of practices deemed unfair. We consider what these changes mean for businesses in practice.

GLI – AI, Machine Learning & Big Data 2026: The Polish perspective on artificial intelligence law

Global Legal Insights (GLI) is a series of international publications by the Global Legal Group (GLG), authored by legal practitioners from around the world. It offers an up-to-date and highly practical guide to the applicable regulatory landscape, complemented by expert commentary on specific areas of law across different jurisdictions. In short: legislation and actionable know-how in one place.

Banking sector overview | Banking today and tomorrow | May 2026

“The end of the dream of free housing” – this is how the Polish Bank Association (Związek Banków Polskich) has characterised Thursday’s judgments of the Court of Justice of the European Union in cases concerning whether the claims of financial institutions against CHF mortgage borrowers have become time-barred.

Return deposits like VAT? The elephant in the room: the risks of the deposit-return system

The deposit-return system was supposed to be simple. Eco-friendly. Leak-proof. Tax-neutral. However, it took just a few months for serious doubts to emerge. The first loopholes are no longer just theoretical, they are in plain sight. The mechanisms for abuse can be described quite precisely, and the scale of potential losses may be much greater than anticipated. Below, we examine where the system is losing control and how this can be addressed.

Contact us:

Wojciech Śliż

Wojciech Śliż

Tax Advisor / Partner / Tax Law

+48 539 110 037

w.sliz@kochanski.pl