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Amortisation Calculator

📅 Updated 24 April 2026·📊 Summary, chart and amortisation schedule

Calculate a full amortisation schedule with a monthly repayment estimate, total paid, total interest, payoff date, a yearly chart, and a switchable annual or monthly payment table.

Amortisation Calculator

$
Years
%
$5,303 Monthly Payment
$636,393 Over 120 payments
$136,393 Total Interest
Apr 2036 Pay-off Date
Interest Principal Balance

Amortisation Schedule

Year Principal Interest Total Paid Balance
Totals $0

Calculations assume a constant interest rate over the whole term and fixed monthly repayments. The schedule is intended as a guide and does not include fees, rate changes, extra repayments, or missed payments.

Payment split

The stacked bars show how each year's payments are divided between interest and principal.

Balance path

The line tracks the remaining balance so readers can see how quickly the debt falls over time.

Flexible schedule

Switch between annual and monthly views when you want either a fast overview or a more detailed amortisation table.

Why Use a Amortisation Calculator NZ?

Seeing exactly where your loan payments go can help you strategize your debt payoff. A detailed amortisation calculator NZ provides a full schedule showing the split between principal and interest over the life of your mortgage or personal loan. Use this transparency to plan extra repayments and dramatically reduce your total interest costs.