In Duplum Rule

A South African legal principle that prevents the total interest charged on a debt from exceeding the original principal amount. Once interest equals the capital owed, no further interest may accrue while the debt remains unpaid.

Usage Examples

"Thanks to the in duplum rule, the R10,000 loan can never accumulate more than R10,000 in interest."

"The in duplum rule protects consumers from spiralling debt on unpaid accounts."

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