Podatnik – oblicz B2B i Umowę

Vital Ozierski

About this app

Calculate your net earnings after deducting all social security contributions and personal income tax (PIT). The app allows you to quickly and transparently calculate net salary and tax liabilities for various forms of employment in Poland, such as sole proprietorship (B2B), employment contracts, contracts of mandate, and contracts for specific work. Simply enter your gross income or salary for each month to receive a detailed breakdown of contributions, including retirement, disability, sickness, accident, Labor Fund, and health insurance contributions, as well as the applicable personal income tax (PIT).

For B2B businesses, the app allows you to include start-up tax relief, preferential ZUS or ZUS Plus contributions, and choose a taxation method such as a tax scale, flat tax, or lump sum on recorded income. The calculator automatically calculates monthly and annual ZUS and PIT liabilities, as well as the net amount available to the entrepreneur.

For employment contracts, contracts of mandate, and contracts for specific work, the app takes into account applicable contributions and taxes, including tax exemptions for individuals under 26 years of age, allowing for easy comparison of different employment arrangements and actual net earnings.

The app is easy to use and designed for entrepreneurs and employees who want to better plan their finances and have full control over their income. All calculations are based on the current tax and social security regulations for 2025–2026.

The information sources used in the app include official, publicly available data published by state administration bodies, in particular the Social Insurance Institution (ZUS). The Ministry of Finance (gov.pl/web/finanse). and the National Tax Administration (podatki.gov.pl).

The app is for informational and educational purposes only. The app's creator does not represent any public administration body, is not a government or state entity, and does not provide public services. The application is not an official tool of the Social Insurance Institution, the National Revenue Administration or the Ministry of Finance and does not enable the handling of official matters.