Withholding tax on cross-border payments

A German holding company receives a dividend from its Polish subsidiary. The payment looks routine. Then the Polish finance team realises the company never filed the formal documentation required to apply the reduced treaty rate – and the default 19 percent withholding tax has already been remitted to the Polish tax authority. Recovering the overpayment takes months and sometimes fails entirely.

Polish withholding tax (podatek u źródła, WHT) applies to cross-border payments of dividends, interest, and royalties made by Polish-resident payers to foreign recipients. The standard rates under Polish corporate tax legislation are 19 percent on dividends and 20 percent on interest and royalties. A reduced rate or exemption is available under a double tax treaty or EU directive, but only if the Polish payer collects, verifies, and retains specific documentation before the payment date.

This guide walks through the WHT procedure step by step – from identifying which payments are caught, to collecting the right documentation, to recovering tax that has been over-withheld. Three business scenarios illustrate the most common traps for manufacturing groups, IT companies, and foreign investors entering Poland for the first time.

Which cross-border payments trigger Polish withholding tax?

Polish corporate income tax legislation imposes WHT on passive income paid by a Polish entity to a non-resident. The tax base is the gross payment amount. Three categories dominate in practice: dividends, interest, and royalties (including licence fees for software, patents, and trade marks). Each carries a different default rate and a different set of exemption conditions.

Dividends paid to corporate shareholders in EU or EEA member states may qualify for a full exemption under the Parent-Subsidiary Directive, transposed into Polish law. The conditions are strict: the recipient must hold at least 10 percent of the Polish company's shares for an uninterrupted 24-month period. The National Court Register (KRS) and the Polish Tax Administration (Krajowa Administracja Skarbowa, KAS) both scrutinise holding periods carefully during audits.

Interest and royalties may benefit from a zero-rate under the Interest and Royalties Directive or from treaty-reduced rates – typically 5 to 10 percent under most Polish tax treaties. The applicable rate depends on the recipient's jurisdiction. For example, payments to a Luxembourg holding vehicle are subject to specific treaty analysis; our tax team's work on Polish-Luxembourg tax structures covers the current treaty position in detail.

Dividends – default 19 percent; treaty or directive exemption available
Interest – default 20 percent; directive zero-rate or treaty reduction available
Royalties – default 20 percent; directive zero-rate or treaty reduction available
Service fees – WHT applies only if the service falls within a listed category (advisory, management, data processing)

Service fees present a grey area. Polish tax legislation lists specific intangible services subject to WHT – including management fees, advisory fees, and data-processing payments. A payment for a concrete deliverable (say, custom software development) may fall outside this list. KAS auditors frequently challenge the classification, so the distinction between a royalty and a service fee deserves careful analysis before any cross-border payment structure is finalised.

What documentation must the Polish payer collect?

The payer – not the recipient – bears primary responsibility for WHT compliance. If documentation is missing or defective, the payer faces a 20 percent penalty rate on the underpaid tax, plus interest accruing at 8 percent per annum. The documentation obligation sits with the Polish entity from day one of the payment relationship.

Three documents are mandatory for any reduced-rate or exemption claim. First, a certificate of tax residence (certyfikat rezydencji) issued by the competent authority of the recipient's home country, valid for the payment year. Second, a formal statement from the recipient confirming that it is the beneficial owner (rzeczywisty właściciel) of the payment and that it is not acting as a conduit. Third, where the total payments to a single recipient exceed PLN 2 million in a calendar year, the payer must either withhold at the default rate and apply for a refund, or obtain a special opinion from the Head of the National Revenue Administration (Szef Krajowej Administracji Skarbowej) confirming the exemption.

The PLN 2 million threshold is the most frequently overlooked rule in practice. Many finance teams track individual invoice amounts rather than cumulative annual payments to a group entity. When the threshold is crossed mid-year without notice, the payer becomes liable for the full default-rate WHT on all payments above the threshold – retroactively for that calendar year.

Certificate of tax residence – must cover the payment date
Beneficial ownership statement – signed by an authorised representative of the recipient
PLN 2m threshold monitoring – track cumulative payments per recipient per year
KAS opinion (above PLN 2m) – processing time up to six months

We secured a refund of WHT exceeding PLN 1.8 million for a manufacturing client in the Mazowieckie region (autumn 2025). The original withholding had been applied at the default 19 percent rate because the subsidiary's finance team had not tracked the cumulative dividend threshold. Correcting the position required a formal refund application supported by a retroactively obtained beneficial ownership analysis and a reconstructed payment schedule.

For businesses with cross-border payment flows that also intersect with foreign investment screening obligations, the UOKiK screening framework may impose separate notification requirements that interact with WHT planning timelines.

How does the step-by-step WHT procedure work in Poland?

The procedural sequence has five stages. Each has a hard deadline. Missing any one of them shifts liability to the Polish payer. The entire cycle from payment planning to final settlement can take between one and eight months, depending on whether the KAS opinion route is needed.

Stage 1 – Classification (before payment). Identify whether the payment falls within a WHT category. Confirm the applicable treaty or directive. Check the cumulative payment total for the year. This analysis should be completed at least 30 days before the first payment.

Stage 2 – Documentation collection (before payment). Obtain the certificate of tax residence and the beneficial ownership statement. Both must be current. A certificate issued in a prior year is only valid if it covers the payment date. Allow two to four weeks for the recipient to obtain a fresh certificate from its home tax authority.

Stage 3 – Threshold check and KAS opinion (if applicable). If cumulative payments will exceed PLN 2 million, decide whether to apply for a KAS opinion (up to six months) or to withhold at the default rate and seek a refund. The opinion route is preferable for recurring payment structures. The refund route is faster but ties up cash.

Stage 4 – Remittance and filing. WHT must be remitted to the tax account of the relevant tax office by the 20th day of the month following the month of payment. The annual WHT return (IFT-2R for corporate recipients) must be filed by the end of March of the following year. A copy must be sent to the foreign recipient.

Stage 5 – Refund application (if over-withheld). A refund application must be filed within five years of the end of the calendar year in which the overpayment occurred. KAS has 60 days to process the application. In practice, complex refund cases involving beneficial ownership challenges take considerably longer.

Three business scenarios: manufacturing, IT, and foreign investor

The same statutory rules apply differently depending on business model and payment type. The following three scenarios illustrate the most common positions encountered in practice. Each scenario involves a distinct risk profile.

Manufacturing group with a German parent. A Polish manufacturer pays a management fee to its German parent each quarter. The fee covers group-wide administrative services. Under the Polish-German double tax treaty, the payment may be exempt from WHT if it qualifies as a business profit rather than a royalty. KAS auditors routinely reclassify broadly drafted management fee agreements as royalty payments, triggering the 20 percent default rate. The fix is a precisely worded services agreement that separates reimbursable costs from fee components and avoids any reference to intellectual property licences.

IT company licensing software to a non-EU entity. A Warsaw-based software house licences its platform to a US distributor. Royalty payments flow from Poland to the United States. The Polish-US double tax treaty limits WHT on royalties to 10 percent. However, the beneficial ownership test requires that the US recipient not be a pass-through entity. If the US distributor sub-licences the platform to end users and retains only a margin, KAS may deny beneficial owner status. Transfer pricing documentation supporting the arm's-length margin is the primary defence. Our team's analysis of KSeF obligations for cross-border operations is also relevant for IT companies managing multi-jurisdiction invoice flows.

Foreign investor entering Poland for the first time. A Dutch private equity fund acquires a Polish target and immediately begins extracting dividends. The fund has held its shares for only eight months. The 24-month holding period for the Parent-Subsidiary Directive exemption has not been satisfied. The default 19 percent rate applies. The fund can apply for a refund once the 24-month period is met – but the cash is locked with KAS in the interim. Planning the acquisition timeline to allow the holding period to expire before the first dividend distribution avoids this problem entirely.

We obtained interim relief protecting a dividend refund claim worth over EUR 3 million for a Dutch fund's Polish subsidiary in Lower Silesia (spring 2026). The refund application had been challenged by KAS on beneficial ownership grounds. A detailed group structure analysis and contemporaneous board resolutions demonstrating independent decision-making at the Polish level resolved the challenge within four months.

What are the most common WHT mistakes and how to avoid them?

Four mistakes account for the majority of WHT disputes handled by Polish tax advisors. Each is avoidable with a structured compliance calendar and clear internal ownership of the WHT function.

Mistake 1 – Stale residence certificates. A certificate valid for a prior year does not cover payments made in the current year. Finance teams that collect documentation once and file it permanently are systematically exposed. The fix is a calendar reminder to request fresh certificates every January for all recurring cross-border payment relationships.

Mistake 2 – Ignoring the PLN 2 million threshold. As noted above, cumulative payments to a single recipient must be tracked across all payment types – not just dividends. A group that pays management fees and royalties to the same entity must aggregate both streams when assessing whether the threshold has been crossed.

Mistake 3 – Treating the beneficial ownership statement as a formality. KAS increasingly challenges beneficial ownership claims in structures where the immediate recipient is an intermediate holding company. A one-line statement that the recipient "is the beneficial owner" is insufficient. The statement should describe the recipient's decision-making autonomy, its own economic activity, and its ability to use and enjoy the income without being contractually obliged to pass it on.

Mistake 4 – Missing the IFT-2R filing deadline. The annual WHT return must reach the tax office by 31 March. Late filing triggers a fine. More importantly, a missing IFT-2R is a red flag that often triggers a KAS audit of the underlying payments. Filing on time – even if the substantive position is contested – is strongly advisable.

Polish WHT compliance also intersects with IP Box and transfer pricing regimes. Companies that claim IP Box relief on income derived from qualifying intellectual property must ensure that cross-border royalty flows are consistent with their IP Box calculations. Inconsistencies between the transfer pricing documentation and the WHT position are a primary audit trigger.

To receive an expert assessment of your company's WHT exposure across all cross-border payment streams, contact info@kordeckipartners.com.

Frequently asked questions

Q: Can a Polish payer rely on a treaty rate without obtaining a KAS opinion if the annual payments stay below PLN 2 million?

A: Yes. Below the PLN 2 million threshold, the payer may apply the treaty rate or directive exemption on its own initiative, provided it holds a valid certificate of tax residence and a signed beneficial ownership statement at the time of payment. No KAS opinion is required. The payer must still verify that the recipient meets all substantive conditions – the documentation obligation is not reduced, only the pre-clearance requirement is absent. Retaining the documentation for at least five years is essential, as KAS may audit payments retrospectively within that period.

Q: How long does a KAS opinion take, and what does it cost?

A: The formal processing period for a KAS opinion is up to six months from the date of a complete application. The application fee is PLN 2,000 per payment type per recipient. In practice, KAS frequently issues a request for additional information, which pauses the clock and can extend the total timeline to eight or nine months. Companies that anticipate crossing the PLN 2 million threshold should submit the application at least six months before the threshold is expected to be reached, rather than after the fact.

Q: Is there a difference between WHT on dividends and WHT on service fees for Polish family foundations?

A: Polish family foundations (fundacje rodzinne) are subject to specific income tax rules that differ from standard corporate tax treatment. Distributions from a family foundation to beneficiaries are taxed at 15 percent rather than the standard corporate dividend rate. Cross-border payments from a family foundation to a foreign beneficiary are subject to WHT rules, but the applicable treaty analysis depends on how the foundation is classified under the treaty partner's domestic law – some jurisdictions treat Polish family foundations as transparent, which affects beneficial ownership analysis. A tax advisor Warsaw-based with experience in family foundation structures should be consulted before any cross-border distribution is planned.

Specific circumstances of your business require tailored advice. The WHT rules interact with transfer pricing, KSeF Poland compliance, and Polish tax law in ways that generic guidance cannot fully address. An error in documentation or threshold tracking can trigger personal liability of the management board members responsible for tax compliance.

If your company makes cross-border payments from Poland and has not conducted a structured WHT review in the past 12 months, we will assess your exposure, identify missing documentation, and prepare a compliance calendar: info@kordeckipartners.com.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to cross-border tax structuring, WHT compliance, and dispute resolution with the Polish Tax Administration. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.