Day Count Calculator
Calculate day counts between two dates using ACT/ACT, ACT/360, ACT/365, 30/360, and 30E/360. Compare all methods at a glance — with optional interest amount calculation.
Late Payment Interest
Calculators in the Late Payment Interest topic.
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Late Payment Interest Calculator
Calculate late payment interest per Section 288 BGB for consumers and businesses. Automatic period splitting upon base rate changes, with full calculation steps and sub-period table.