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RiverMathRiverMath

Loan overpayment

Models an annuity loan with a fixed monthly payment and constant interest rate. Extra monthly payments reduce the principal directly, shortening the loan term and cutting total interest paid.

Principal balance still owed under your loan agreement.
Nominal annual interest rate — converted to a monthly rate for amortisation.
%
Remaining contracted term in years before any extra payments.
Fixed amount paid each month on top of your scheduled instalment (0 = no overpayment).

Scheduled monthly payment
2,158.77
Total interest without overpayments
347,629.82
Time saved
111 months
Interest saved
145,340.53

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