Service Contract and Tax Deductible Costs (KUP) in 2024: Rules and Limits

Many self-employed individuals and freelancers in Poland receive their pay slip and wonder why the net amount differs from expectations. The key factor is often the tax deductible cost allowance (KUP). In 2024, the rates and limits remain the same as the previous year, but confusion persists – especially when a service contract (umowa zlecenie) also involves copyright transfers. This article breaks down the rules, provides a clear comparison table, and gives you a ready-to-use checklist so you can verify your own calculations and avoid overpaying tax.

What Are Tax Deductible Costs (KUP) for a Service Contract?

KUP (koszty uzyskania przychodów) is a fixed amount you can subtract from your gross income before calculating your personal income tax (PIT) advance. For a standard service contract, the legal basis is Article 22, Section 9, Point 3 of the Polish Personal Income Tax Act of 26 July 1991 (Journal of Laws 2023 item 1200, as amended). According to this provision, you are entitled to a lump-sum deduction of 20% of your gross remuneration, after deducting the social insurance contributions (ZUS) that you as the insured pay.

For example, if your gross pay is 5,000 PLN and your ZUS contributions (pension, disability, sickness) total 13.71% (685.50 PLN), the tax base before KUP is 5,000 – 685.50 = 4,314.50 PLN. You then subtract 20% KUP (862.90 PLN), leaving a taxable base of 3,451.60 PLN. Without KUP, your tax would be higher by about 862.90 PLN × 12% = 103.55 PLN per month.

20% vs 50% KUP: When Do You Qualify?

The standard 20% rate applies to all service contracts that do not involve the transfer of copyright. The 50% rate is reserved for creators who, under the service contract, transfer their economic copyrights to a work. Simply being a programmer or copywriter is not enough – three conditions must be met:

The contract must explicitly separate the remuneration for the transfer of copyright.

The client must accept the specific work (e.g., through a delivery and acceptance protocol).
3. The work must be the result of creative activity with an individual character (as defined in Article 1 of the Copyright and Related Rights Act).

If even one condition is missing, you cannot use the 50% KUP. Contracts for a specific work (umowa o dzieło) follow similar rules, except when concluded with your own employer – in that case no KUP is allowed.

The 120,000 PLN Annual Limit for 50% KUP

Since 2022, a cap applies to the 50% KUP rate. The limit is 120,000 PLN of gross income from copyright-related activities in a tax year. If your income from such contracts exceeds this amount, the excess is taxed using the standard progressive rates (12% or 32%) without the 50% deduction.

Example: A creator earns 150,000 PLN in 2024 from copyright transfers. For the first 120,000 PLN, they can apply 50% KUP (60,000 PLN in costs). For the remaining 30,000 PLN, only the standard 20% KUP applies (6,000 PLN). Total KUP: 66,000 PLN, which significantly lowers the tax base, but only up to the 120,000 PLN threshold.

This limit does not apply to the standard 20% KUP – there is no upper cap on the amount of costs you can deduct (except that it cannot exceed the income itself).

Comparison Table: KUP Rates by Contract Type

Common Pitfalls That Deny You KUP

The most frequent mistake is trying to apply the 20% KUP to a service contract performed for your own employer. Article 22, Section 9, Point 5 of the PIT Act explicitly excludes the possibility of deducting any costs in such a case. The entire income from that contract is treated as employment income – you can only use the standard employee cost allowance of 250 PLN per month (if you are employed elsewhere).

Important: If you are an employee of Company A and also hold a separate service contract with Company B, you are entitled to the 20% KUP on that second contract.

Another trap is the lack of a delivery and acceptance protocol when claiming 50% KUP. Without a written confirmation that the work was handed over, the tax office may challenge the deduction during an audit or tax proceedings.

Step-by-Step: How to Calculate Your Net Pay

Use this checklist to verify your employer’s calculation:

Check your contract – Does it contain a copyright clause if you consider yourself a creator?
2. Calculate ZUS contributions – 13.71% of gross (14.15% if you also pay voluntary sickness insurance).
3. Subtract ZUS from gross – This is the base for KUP.
4. Apply the correct KUP rate – 20% or 50% to the base.
5. Calculate the tax base – Base after KUP.
6. Compute the tax advance – 12% up to 120,000 PLN annual income, 32% above that.
7. Subtract health insurance contribution – 9% of the base (note: since 2022, health insurance no longer reduces tax).

If you are unsure, use the official calculator at podatki.gov.pl (search for “Kalkulator wynagrodzeń”). For complex cases, you can request an individual tax interpretation from the National Tax Information (KIS) – the fee is 40 PLN, and the waiting time is up to three months.

Where to Find Official Sources and Next Steps

• Full text of the PIT Act (in Polish): isap.sejm.gov.pl – search for “ustawa o podatku dochodowym od osób fizycznych”.
• Official tax calculator: podatki.gov.pl – use the salary calculator.
• Individual interpretation request: Submit via the e-Deklaracje system or in writing to Krajowa Informacja Skarbowa, ul. Świętokrzyska 12, 00-916 Warszawa.

Your next step: Download the official PIT-11 form from your employer for 2024 and compare the KUP amount shown with your own calculation using the steps above. If you spot a discrepancy, contact your payroll department immediately. For 2025, remember that the 50% KUP limit of 120,000 PLN remains unchanged – plan your annual income so you do not cross the threshold unexpectedly.