On January 1, 2016 the new act of law has entered into force, which amended the act on payment periods in commercial transactions and the Civil Code. This act of law has introduced completely new regulations concerning the statutory interest.
The issue of interest is currently stipulated in the Civil Code and the act on payment periods in commercial transactions. After the amendment, these acts distinguish five different types of interests: statutory interest, maximum interest, statutory interest for delay, maximum interest for delay and statutory interest for delay in commercial transactions.
All types of interest has been determined by increasing the reference rate of the Polish National Bank with a statutory value. The regulations limit the possibility to determine the interest (both: equity interest and interest for delay) rate in a contract for strictly defined limits.