Interest calculators help compute statutory, contractual, tax and loan interest. A useful tool for negotiations, debt collection or transaction settlements.
Interest calculator — simple result
Bank interest — calculator
Loan interest — calculator
Tax interest — calculator
ZUS interest — calculator
Answers to the most common questions about calculators in the topic Interest.
Statutory interest for delay = NBP reference rate + 5.5 percentage points. For B2B transactions = reference rate + 10 pp. The interest calculator computes the amount due from a specific due date.
Interest = loan amount x interest rate x number of days / 365. The calculator accounts for the type of interest (statutory, contractual, maximum) and the exact delay period.
Statutory interest is the legal minimum for delays. Maximum interest = 2x the statutory delay rate — this is the upper limit a contract may not exceed. The calculator applies the correct type automatically.
Generally no — Polish law prohibits anatocism (interest on interest). Exceptions include specific contracts or bank accounts. The calculator uses simple interest by default.
Need a lawyer?
6+ Law Firms & Notaries
ready to take your case
Need a lawyer?
Ponad 6Law Firms & Notaries·ready to take your case
Compare by specialization, city and ratings. Contact directly.
