Foreigners in Poland: taxes for international employers and foreign employees

Tax obligations for foreigners in Poland rarely come down to just one topic. In practice, you often need to assess tax residency under Personal Income Tax (PIT), run payroll correctly (including employer withholding), determine VAT rules for domestic and cross-border transactions, and confirm when Social Insurance Institution (ZUS) contributions apply.

This guide organises these issues from two perspectives: an employer hiring foreign nationals in Poland, and a foreign individual starting work or business activity in Poland.

For additional context, see our earlier guides on company registration in Poland and what to know about legal residence and work before relocating.

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Starting point: tax residency and the scope of PIT liability in Poland

Tax resident vs non-resident — why it matters

In Polish PIT, the key question is whether an individual has a place of residence in Poland for tax purposes.

• A Polish tax resident is generally taxed in Poland on worldwide income (including foreign income) — i.e., an unlimited tax liability.
• A non-resident generally settles PIT in Poland only on income sourced in Poland — i.e., a limited tax liability.

In real-life cases, disputes usually happen because residency is not determined solely by citizenship or only by the number of days spent in Poland. In particular, Polish tax practice looks at:

• the centre of vital interests (personal and economic ties), and
• the time spent in Poland (often assessed using the 183-day threshold).

Dual residency and the treaty “tie-breaker”

It’s possible to meet residency criteria in two countries at the same time. When this happens, the final outcome is determined under the relevant double tax agreement (DTA), typically via a sequence of “tie-breaker” tests (permanent home, centre of vital interests, habitual abode, nationality, and — if still unresolved — mutual agreement between authorities). This matters both for the employee and for the employer setting the taxation method and documentation requirements.

Tip: if your employment model includes work in multiple countries or frequent relocations, implement a formal process to verify tax residency and keep documentation updated.

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PIT for foreign employees: employer obligations and the most common risks

Which taxation rules apply to remuneration?

From the employer’s perspective (as the withholding agent), the key factors are the employee’s tax residency status and also:

• where the work is actually performed,
• whether there are periods of work abroad, and
• whether treaty rules apply (including employment income articles in a DTA).

In practice, companies most often struggle with three areas:

1. Incorrect residency classification (e.g., assuming 183 days always decides the outcome),
2. Missing documentation confirming tax status (e.g., no certificate of tax residency, outdated declarations),
3. Mismatch between formal employment location and the actual place of work (including remote work performed from another country).

Certificate of tax residency — when it matters

To apply DTA relief and reduce double taxation risk, you often need a certificate of tax residency (from the employee’s/contractor’s country of residence). In tax audits, this document is commonly used as evidence supporting the taxation approach taken.

Annual and informational documents — what the employer must ensure

The required filings depend on the income type and taxpayer status, but in payroll processes the critical points are:

• correct calculation of PIT advances/withholding,
• accurate reporting in annual/information forms, and
• consistent reporting with ZUS data (and payroll lists).

If hiring foreigners is recurring (e.g., shared service centres, construction, logistics, IT), it is strongly recommended to implement a stable HR & payroll process supported by payroll Poland and reliable accounting Poland.

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Social Insurance Institution (ZUS): when a foreign national is subject to Polish social security

General rule: citizenship does not decide ZUS liability

As a rule, if work is performed in Poland under a contract that triggers social security, ZUS contributions are due — similar to Polish employees. The details, however, are decisive:

• type of contract (employment contract, mandate contract, appointment, management contract, etc.),
• place where the work is performed,
• coordination rules (e.g., EU/EEA/Switzerland) and documents confirming applicable legislation.

ZUS registration and reporting — organising the process on the employer side
The employer must be registered as a contribution payer and then register the employee for the relevant insurance schemes.

In practice, you should pay close attention to:

• correct identification data (numbers and documents),
• date consistency (start date vs registration date),
• correct insurance title codes.

For employers hiring foreign nationals, the most frequent risk is formal reporting errors that later complicate corrections and benefit settlements.

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VAT for foreign entrepreneurs and companies entering the Polish market

When does VAT registration in Poland become mandatory?

From a foreign entrepreneur’s perspective, the first step is to assess whether — and when — activity in Poland triggers VAT obligations. This usually applies when:

• the supply is taxed in Poland (because the place of taxation is Poland),
• the business performs activities that require registration,
• the company wants to become an active VAT payer (e.g., to recover input VAT).

If you are planning to register company in Poland, it’s worth aligning your VAT model early — especially if you will invoice Polish customers, store goods in Poland, or run cross-border services.

Place of supply and place of taxation — the key in international transactions

For services (especially B2B), VAT depends on place of supply rules. Errors here often lead to:

• reporting VAT in the wrong country,
• VAT arrears risk,
• invoicing and group-settlement disruptions.

If you operate cross-border (e.g., IT services, consulting, e-commerce, logistics), a structured VAT review of your billing model and registration obligations is usually the most cost-effective approach.

VAT exemption threshold — important changes from 1 January 2026

From 1 January 2026, Poland increases the VAT exemption threshold (small business exemption) to PLN 240,000.

For the smallest operations, VAT exemption may be relevant — but eligibility depends on factors such as where the taxpayer is established and whether conditions are met under the EU SME VAT scheme for cross-border activity.

In practice, you should assess:

• turnover thresholds,
• exclusions (activities that remove the right to use the exemption),
• what happens when the threshold is exceeded (loss of exemption and registration obligations).

Practical note: the decision between exemption and VAT registration affects pricing (B2C), competitiveness in tenders (B2B), and the ability to recover VAT on costs.

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Double tax agreements (DTA): when they help in practice

What problems do treaties solve?

A DTA is not an automatic tax exemption. Its role is to:

• allocate taxing rights between countries (or split them),
• specify the method to avoid double taxation (e.g., exemption with progression or tax credit),
• provide tie-breaker rules for residency conflicts.

What is needed to apply a DTA in practice?

Most commonly, you need:

• documents confirming tax residency,
• consistent data on work location and stay periods,
• correct income classification (e.g., employment income, business income, management/board remuneration).

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Best practices for employers: reducing tax risk when hiring foreigners in Poland

Hiring a foreign employee — key process elements

To reduce errors in settlements and reporting, implement an organised process that includes:

• verification of tax residency and periodic updates,
• collection of required tax documents (depending on the employment model) and consistent identification data,
• correct PIT withholding and year-end reporting,
• correct ZUS registrations and monthly settlements,
• internal rules for remote work and secondments, reflecting work location and potential obligations abroad.

Foreign individual or foreign company doing business in Poland — areas that require analysis

When running a business in Poland (regardless of legal form), tax risks most often come from incorrect VAT assessment and income taxation rules. In practice, the key items are:

• determining the place of VAT taxation for core transactions (domestic and cross-border),
• choosing VAT status (exemption vs registration) based on sales profile and cost structure,
• preparation for record-keeping and correct invoicing,
• consistent approach to CIT or PIT settlements (depending on the business form).

When entering the Polish market or building a team in Poland, a comprehensive approach usually works best — from company registration in Poland and legal work/residence considerations, through tax and ZUS compliance, to ongoing accounting in Poland and payroll support.

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Frequently Asked Questions (FAQ)

1) Does 183 days in Poland always mean Polish tax residency?

Not always. The duration of stay matters, but the centre of vital interests is also assessed. In residency disputes, the relevant double tax agreement (DTA) can be decisive.

2) Is a foreign national employed in Poland always subject to ZUS?

In most cases, employment in Poland results in ZUS insurance obligations — but exceptions exist. The decisive factors are the actual place of work, the legal basis for insurance, and — where cross-border work applies — rules on applicable legislation (e.g., EU/EEA/Switzerland, often confirmed by an A1 certificate) or relevant international social security agreements.

3) Does a foreign company have to register for VAT in Poland?

It depends on the transaction type and place of taxation. In many sales or service models, VAT registration or other settlement obligations may arise — this requires a case-by-case analysis.

To streamline settlements for foreigners in Poland or build a consistent tax-and-compliance model for employment and business activity, advisory support across PIT, VAT and Social Insurance Institution (ZUS) is often the most efficient route — especially when double tax agreements may apply. Contact us to discuss your case.

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If you have any further questions or require additional information, please contact your business relationship person or use the enquiry form on the HLB Poland website.

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