Polish tax,
with less guessing.
Built for people working in Poland: freelancers on JDG, contractors switching from UoP, and anyone trying to sanity-check a mortgage or B2B rate without digging through forums for half a day.
Useful tools for real decisions
Made for day-to-day questions, not finance theatre
JDG Tax Calculator
Check what actually lands in your account after ZUS, health contribution, and income tax. Compare ryczałt, liniowy, and skala without doing it by hand.
2026 Tax Rates
Mortgage Calculator
Estimate the monthly payment, full repayment cost, and how the loan looks if rates move up again. Includes WIBOR + marża and a simple stress test.
Tax Glossary
Short explanations of the Polish finance words people keep bumping into: ZUS, ryczałt, WIBOR, RRSO, and a few more.
These calculators are here to help you estimate, compare, and catch mistakes early. For a filing decision or edge case, it is still worth checking with a księgowy.