Late Fee Calculator
Calculate late payment interest per Thai civil law (5% per annum)
Late Fee Calculator
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Late payment interest฿0.00
- Total amount owed
- ฿0.00
- Daily interest
- ฿0.00
Results are estimates only
Formula
Late interest = principal × rate% × days / 365 (legal default 5% p.a. per Civil Code 2021)
Data as of
Results are estimates only
FAQ
Per the 2021 Civil and Commercial Code amendment, the default late payment interest rate is 5% per annum unless otherwise specified in the contract.
Late interest = overdue principal × rate% × days late ÷ 365, accruing daily from the due date until payment.