Employment Contracts in Poland — Complete Guide

No. Polish labour law prohibits sham self-employment (samozatrudnienie pozorne), where a worker is compelled to register as self-employed but performs work that is in substance employment — working fixed hours, at a designated place, under the direction of a single client. The Labour Inspectorate (PIP) and ZUS actively investigate and reclassify such arrangements. If reclassified, the client company must pay full employer ZUS contributions retroactively plus interest and penalties. Workers in such situations can report to PIP and the court may reclassify the contract to umowa o pracę with all back entitlements. Courts generally apply a substance-over-form test.

For high earners (above approximately 8 000–10 000 PLN monthly), B2B with a 19% linear tax (podatek liniowy) typically gives the highest net income, as it avoids the 32% PIT rate. For mid-range earners (4 000–8 000 PLN), umowa o pracę and B2B are broadly comparable, with B2B slightly ahead due to lower effective ZUS. For lower earners or those valuing security (sick pay, leave, dismissal protection), umowa o pracę is usually the better overall package even if the net pay is similar. Umowa zlecenie is generally the least advantageous for full-time ongoing work.

Yes. Many Polish workers maintain a full-time umowa o pracę with one employer while also running a registered business (działalność gospodarcza) and providing services to other clients on a B2B basis. The income from both sources is declared on the annual tax return and taxed according to the applicable rules. ZUS rules mean you typically do not pay additional social contributions on B2B income if your umowa o pracę already pays the full mandatory contribution base. However, you must still pay health insurance contributions on the B2B income. Consult an accountant to structure this optimally.

Notice periods on umowa o pracę are set by the Labour Code and depend on how long you have been employed with that employer: less than 6 months — 2 weeks; 6 months to 3 years — 1 month; more than 3 years — 3 months. These periods apply to both employer and employee initiating termination. During the notice period, you are entitled to full salary. If dismissed without notice (only permitted for serious misconduct or specific circumstances), you are entitled to compensation equal to the salary for the notice period. Collective bargaining agreements may provide longer notice periods.

On an umowa zlecenie, sick pay depends on whether sickness insurance (ubezpieczenie chorobowe) contributions are being paid. For most full-time zlecenie workers, sickness insurance is mandatory (if it is their only employment). After 90 days of continuous contributions, you become eligible for ZUS sick pay (zasiłek chorobowy) at 80% of your average daily income. The employer on a zlecenie contract is not required to pay sick pay — it comes from ZUS directly. Workers on zlecenie as a secondary contract (alongside a full-time umowa o pracę) may not be paying sickness contributions on the zlecenie, in which case no sick pay applies for that contract.

An umowa zlecenie can be terminated by either party at any time under the Civil Code (Kodeks Cywilny), unless the contract specifies a notice period. If the contract does not specify notice, it can be terminated immediately. However, if the terminating party caused damage (e.g., terminating at a time that causes significant inconvenience to the other party), they may be liable for compensation. This is very different from umowa o pracę, which requires written notice with a statutory notice period and, for employers, a valid reason. The lack of protection against sudden termination is one of the main disadvantages of the zlecenie contract for workers.

Umowa o dzieło (contract for a specific work product or result) and umowa zlecenie (service contract) are both civil law contracts, but they differ in important ways. Umowa o dzieło is for the creation of a specific deliverable — a design, a piece of writing, a translation, a software module. It is not subject to ZUS social contributions (only health insurance in some cases), making it tax-efficient for occasional one-off work. Umowa zlecenie is for ongoing or recurring services where the worker provides effort, not a specific result. ZUS contributions are more extensive for zlecenie. Tax authorities scrutinise the classification carefully — improperly using o dzieło for what is really a zlecenie can result in back ZUS assessments.

The "thirteenth salary" (trzynastka) is an annual bonus equal to one additional monthly salary. It is a statutory entitlement only for employees in the public sector (budżetówka) — teachers, civil servants, healthcare workers and local government employees. It is paid in the first quarter of the following year, provided the employee worked for at least 6 months during the calendar year. In the private sector, there is no statutory thirteenth salary — any such payment is at the employer's discretion, agreed in the employment contract or internal company regulations (regulamin wynagradzania). If your contract mentions a "bonus" or "premia," this is a discretionary payment governed by contract terms, not Labour Code rights.

Non-EU nationals can register a sole tradership (działalność gospodarcza) in Poland if they hold: permanent residence (karta stałego pobytu), long-term EU resident status, refugee status, subsidiary protection status, a tolerated stay permit, a Pole's Card (Karta Polaka), or certain other specific statuses. Non-EU nationals who do not hold one of these statuses cannot register as a sole trader but can establish a limited liability company (sp. z o.o.) — however, working as an employee of that company still requires a work permit. EU citizens have exactly the same rights as Polish citizens to register any business form in Poland.

Polish labour law allows employers to offer an initial probationary contract (umowa o pracę na okres próbny) before concluding a fixed-term or permanent contract. Since 2023, the maximum probationary period is: 1 month for contracts expected to last less than 6 months, 2 months for contracts expected to last 6–12 months, 3 months for contracts expected to last longer than 12 months (or permanent contracts). During the probationary period, the worker has all normal Labour Code protections (minimum wage, sick pay, leave entitlement in proportion to time worked), but the notice period is shorter: 3 days for probationary periods up to 2 weeks, 1 week for those lasting longer.