The Bank of Finland announces the reference interest rate used for determination of the penalty rates, and the penalty rates themselves, each June and December, with effect for the next half calendar year. The penalty interest rates in force at any given moment can be found on the front page of the Bank’s website and in the Reference rate and penalty interest rates table on the Statistics page.
There are two penalty interest rates, of which the second applies to commercial contracts.
The Bank of Finland does not give advice on the calculation of the amount of penalty interest due. To help in calculating penalty interest, you can use, for example, calculators available on the Internet.
Additional information on penalty interest rates