Two Polish companies in the group are about to merge, the corporate side is under control, and someone at head office asks the question that should have come first: what does this do to our tax position? The comfortable answer is “nothing - a merger is tax-neutral”. That answer is not safe. Neutrality is the intended outcome of a properly structured merger, but it is conditional, the conditions were tightened in 2022, and they are easy to miss when the focus is on the merger plan and the registry court. This article is not tax advice and does not try to compute anything. It is the short list of questions to put to your Polish tax adviser before the merger plan is signed, while the structure can still be adjusted.

Is a Polish merger still tax-free?

The starting point in corporate income tax is that a domestic merger can be carried out without triggering tax - but only where the statute’s conditions for neutrality are satisfied. The reform known as Polski Ład, in force from 1 January 2022, tightened those conditions. A merger can generate taxable income if a single one of them is overlooked. So the first question is not “how much tax?” but “have we secured neutrality at all - and at both levels where it is tested?”

When can the acquiring company be taxed?

Neutrality has to hold in two places at once - the acquiring company and the shareholders of the company it absorbs - and different provisions govern each. On the company side, three rules can produce income.

First, receiving the assets of the company it absorbs is, for the acquiring company (spółka przejmująca), in principle income to the extent their market value exceeds the value adopted for those assets for tax purposes (Art. 12(1)(8c) of the Corporate Income Tax Act, ustawa o CIT, “CIT Act”). That income is excluded - the neutral result - only where the acquiring company both continues, for those assets, the tax values recorded by the acquired company (spółka przejmowana) and keeps them attached to activity carried on in Poland (Art. 12(4)(3e) CIT Act). Both limbs matter: step the tax values up, or move the assets out of the Polish tax net, and the exclusion is at risk.

A second charge arises where shares are issued and their issue value falls short of the market value of the assets received (Art. 12(1)(8d) CIT Act); the guard sits in the merger plan - match the issue value to the market value of the assets. In a 100% upstream merger no shares are issued, so this charge has nothing to attach to, and for a share-less sister merger under Art. 515¹ § 1 KSH the statute says in terms that it does not arise.

Third, where the acquiring company already holds shares in the company it absorbs, a separate rule can produce income on the part corresponding to that stake (Art. 12(1)(8f) CIT Act), and the exclusion for it applies only where the holding is at least 10% (Art. 12(4)(3f)). A minority holding below that line sits outside the safe harbour.

When is the shareholder taxed?

The shareholder of the acquired company receives shares in the acquiring company, and their issue value is in principle income (Art. 12(1)(8ba) CIT Act). This is excluded under Art. 12(4)(12) CIT Act on two cumulative conditions: the shares in the acquired company were not themselves acquired in an earlier reorganisation, and the shareholder carries the historic tax cost across to the new shares. Fail either condition and the shareholder’s income is taxed in the capital-gains basket, as income from participation in the profits of legal persons (Art. 7b(1)(1)(m) CIT Act).

One timing point runs under all of this, on both sides: every one of these values is tested on the day before the merger date - the day the registry court enters the merger (Art. 493 § 2 KSH), often months after the plan is signed. Figures that worked on the plan date can produce a charge at registration, so have your adviser confirm them close to registration.

In plain terms: neutrality is not one box to tick but several, spread across the balance sheet and the shareholder register. Any one of them can be the thing that turns a “tax-free” merger into a taxable one.

The trap for groups that reorganise in steps

The condition most likely to catch a group is the first limb of the shareholder rule: neutrality applies only if the shares in the acquired company were not acquired in an earlier share exchange (wymiana udziałów), merger or demerger (podział) (Art. 12(4)(12)(a) CIT Act). A group that reorganises in stages - a share-for-share exchange one year, a merger the next - can find that the second step is treated as taxable precisely because of the first.

This condition is contested. Tax authorities apply it as written, while there are arguments - supported by court practice on share exchanges - that limiting neutrality to a “first” reorganisation is hard to square with the EU Merger Directive, which governs cross-border reorganisations but whose principles Polish courts also apply to domestic ones. The position is unsettled, and it is not the place for a general article to predict how it resolves. What matters for you is practical: if any of the shares involved in your merger came out of an earlier reorganisation, this is the single most important question to raise with your tax adviser, and a situation where obtaining a formal tax ruling before you proceed may be money well spent.

You still need a real business reason

Even where the mechanical conditions are met, neutrality can be denied if the merger lacks a genuine commercial purpose. If a merger is not carried out for justified economic reasons, the law presumes that avoiding or evading tax is its main purpose - or one of its main purposes - and the neutrality provisions cease to apply (Art. 12(13)–(14) CIT Act). Above this specific rule sits the general anti-avoidance rule (Art. 119a of the Tax Ordinance, Ordynacja podatkowa). The practical response is unglamorous but effective: the business reasons for the merger should be identified and documented before the plan is signed, not assembled afterwards in response to a query.

Losses do not come with the company

A common assumption - that absorbing a company lets you use its accumulated tax losses - is wrong in Poland. The acquired company’s carried-forward losses cannot be set against the acquirer’s income (Art. 7(3)(4) CIT Act). And the restriction reaches further than that: the acquiring company’s own losses can be blocked where, after the merger, the actual main business it carries on changes, in whole or in part, or its ownership changes by at least a quarter (Art. 7(3)(7) CIT Act). If loss utilisation is anywhere in the rationale for the transaction, it needs to be tested against these rules first.

The quick checks: succession, VAT, PCC, cross-border, timing

A handful of further points belong on the list, each a one-line question rather than a section:

  • Tax succession. The acquiring company steps into the tax rights and obligations of the company it absorbs (Art. 93 of the Tax Ordinance). Useful - but do not assume it carries the protective effect of a tax ruling the acquired company held; that is treated inconsistently and should be checked.
  • VAT and PCC. A merger is generally not a VAT-taxable transaction - it is universal succession, not a sale - so no VAT arises; and mergers of capital companies are excluded from the tax on civil-law transactions (Art. 2(6)(a) of the PCC Act). Confirm both for your facts, especially where a partnership is in the structure.
  • Cash top-ups. A cash payment to shareholders alongside their shares is treated as income from participation in profits, on which the payer withholds tax at source - confirm the treatment before you build it in.
  • Cross-border. The neutrality reliefs apply only where the companies involved are taxed on their worldwide income in Poland or another EU/EEA state (Art. 12(15)–(16) CIT Act), and absorbing a Polish company into a foreign parent brings its own tax dimension, including exit taxation where assets leave Poland. This is beyond the present article - see my article on cross-border upstream mergers, and take tax advice early.
  • Timing. The merger date interacts with the tax year, the closing of the books and instalment payments. Confirm who files what, and when.

What this means for you

Treat tax as a workstream that runs in parallel with the merger plan, not a box ticked at the end. The corporate steps and the registry court will not tell you whether your merger is tax-neutral; only the analysis above, applied to your specific facts, will. The good news is that most of these questions have clean answers when they are asked early - and expensive ones when they are asked after signing.

Watch out

  • Neutrality is conditional, and tested at both company and shareholder level - securing one does not secure the other.
  • Shares that came out of an earlier reorganisation are the classic trigger for a taxable second step; flag them early.
  • A documented business rationale is part of the file, not an afterthought.
  • Do not plan around using anyone’s tax losses without confirming the restrictions first.

Next steps

  • List every entity and shareholder in the merger and, for each, note whether its shares came from an earlier reorganisation.
  • Put the questions in this article to your Polish tax adviser before the merger plan is signed, and ask whether a formal tax ruling is warranted for any contested point.
  • Have the economic rationale for the merger written down before signing.
  • If the transaction is cross-border, bring in tax advice at the planning stage, not at registration.

A note on scope: I am an advocate (adwokat), not a tax adviser. This article is a general orientation to the corporate-tax questions a merger raises under Polish law as at the date shown above; it is not tax advice, contains no computation, and should not be relied on for your transaction. Confirm every point with a Polish tax adviser on your specific facts.