The Hesapstan loan late payment interest calculator is designed to calculate the default (late payment) interest applied to a loan installment that was not paid on time, based on the overdue installment amount, a current annual rate you enter, and the number of days overdue.
How is loan late payment interest calculated?
Late payment interest is calculated using simple interest on a 365-day basis: Late Payment Interest = Overdue Installment Amount × (Annual Rate / 100) × (Days Overdue / 365).
Where do I find the current rate?
The loan default interest rate may be a contractual rate set in your loan agreement, and in some cases may also be subject to the statutory default interest rate. This tool does not contain a current or official rate; you must verify it from your loan agreement or your bank and enter it yourself.
What does this tool not calculate?
- It does not contain or assume the current official or contractual default interest rate; you enter the rate yourself.
- It does not calculate credit card late payment interest; that is subject to a different regulation and a separate calculation.
- It does not account for additional late-notice fees or other charges your bank may apply.
Frequently Asked Questions
How is loan late payment interest calculated?
The overdue installment amount is multiplied by the annual rate and the number of days overdue divided by 365: Late Payment Interest = Installment Amount × (Annual Rate / 100) × (Days / 365).
Does this tool know the current default interest rate?
No. The rate depends on your loan contract or applicable regulation; this tool calculates only using the rate you enter.
Does this tool also calculate credit card late payment interest?
No. This tool is for loan installments; credit card late payment interest is subject to different regulation and should be calculated separately.