Mortgage Repayment Calculator
Estimate your home loan repayments, see the total interest over the life of the loan, and find out how much sooner you could be mortgage-free by paying a little extra each month.
Estimates only, based on your inputs and a constant interest rate. Actual repayments depend on your lender, rate changes, fees and your credit profile.
An Australian mortgage repayment is calculated from the loan amount, the interest rate and the loan term using a standard amortisation formula, where each repayment covers the interest charged plus part of the principal. On a typical 30-year loan, paying a small amount extra each month can cut years off the term and save tens of thousands in interest.
A default or error on your credit file can cost you a much higher interest rate than the one above. We're an ASIC-licensed, solicitor-led team — get a free, no-obligation assessment. No Win No Fee.
How Your Credit File Changes the Number Above
This calculator uses the interest rate you enter — but the rate a lender actually offers depends heavily on your credit file. A single default, a court judgment, or a cluster of recent enquiries can move you from a mainstream rate into a much higher one, adding tens of thousands over a 30-year loan. If the repayment feels out of reach, it can be worth checking what's on your file before you apply.
Add this calculator to your site — free
Brokers and partner sites can embed this calculator for free and keep your own branding around it. Just copy the code below. It includes a small credit link back to Australian Credit Solutions — that's the only condition of use.
Mortgage Calculator Questions
How is a mortgage repayment calculated?
Do extra repayments really make a difference?
Does my credit file affect my mortgage rate?
Important — this is an estimate, not advice. This calculator is a model based on the figures you enter and an assumed constant interest rate; it does not include fees, redraw, offset accounts, lenders mortgage insurance, rate changes or your full personal circumstances. Results are not guaranteed and do not constitute financial, credit or tax advice. Consider your own objectives, financial situation and needs, and seek advice from a licensed professional before making a decision. Australian Credit Solutions Pty Ltd holds Australian Credit Licence ACL 532003 and provides credit file correction services. Last updated: 14 June 2026.