Legal Interest Calculator
Calculate legal interest and default interest based on debt amount and period.
Frequently Asked Questions
What is the legal interest rate?
As of 2025, the legal interest rate is 24% per annum. Legal interest is the interest applied when a debt is not paid on time under the law of obligations and is regulated by Law No. 3095.
What is the difference between default interest and legal interest?
Legal interest is the interest applied when no rate is specified in the contract. Commercial default interest is calculated based on the advance interest rate in commercial transactions. In 2025, both rates have been set at 24%.
What is advance interest?
Advance interest is a type of interest determined by the Central Bank and applied in commercial transactions. In 2025, it is applied at 27% per annum. Under Article 1530 of the Turkish Commercial Code, default interest in commercial transactions can be requested at the advance interest rate.
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