Mortgage Repayment & Amortisation Calculator

Figure out your monthly and annual mortgage repayments, and see how much you could save by making overpayments.

The following assumptions are used for the calculations:

Overpayment allowance is based on the outstanding balance at the start of each calendar year (using original schedule for estimation).

Overpayments result in a reduction in the mortgage term, not in the monthly payment (unless the loan is paid off early).

Lenders typically allow overpaying up to 10% of the outstanding balance per year without penalty. This calculator lets you model higher amounts, but be aware of potential fees from your lender.

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