Interest-Only Mortgage Calculator

Compare interest-only mortgage payments with the higher repayment that starts once the interest-only period ends, so you can plan for the change.

Loan amount

Interest rate

Interest-only period

yrs

Total term

yrs

Interest-only payment: $1,750.00
Payment after period: $2,255.05
Payment increaseYour payment jumps by this amount.: $505.05
Interest paid during period: $105,000.00

How it works

Enter the loan amount and interest rate.
Set the interest-only period and the total loan term.
Compare both payments and see the increase you should prepare for.

Frequently asked questions

Why does the payment increase so much later?

During the interest-only period no principal is repaid, so the full balance must be amortized over the shorter remaining term.

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Disclaimer: This calculator provides estimates for informational purposes only and is not financial, tax, or legal advice. Verify figures with a qualified professional before making decisions.