Mortgage calculator
Mode-aware affordability and repayment estimates with transparent assumptions for Australia. All calculations run directly in your browser.
Long-form explainers with FAQ schema—each links back here so you can try the numbers immediately.
View all Australia guidesCalculator inputs
No data storage. Inputs stay in this browser session only.
Your results will appear here
Fill in your numbers and click Calculate results to see your estimated max property price, loan amount, monthly payment, and full amortization breakdown.
Broker services for your scenario
Compare home loans from Australia's top lenders
Broker booking links are disabled until a regulated partner URL is configured. Use a licensed mortgage professional in your region for quotes.
No obligation · Free initial consultation
See live mortgage rates from multiple lenders side-by-side. Find the best deal for your scenario.
Why compare?
A 0.5% difference in rate on a A$650,000 mortgage could save you A$22,000+ over the full term.
Includes First Home Owner Grant eligibility check
Rate comparison deep-links are not configured. Check lender comparison sites directly for live pricing.
Affiliate disclosure: We may earn a commission.
Yes. You can model standard principal-and-interest repayments, view borrowing power against typical DTI-style caps used for quick planning, and inspect amortisation over your chosen term. Australian lenders also apply expense benchmarks (HEM) and floor rates that are proprietary, so final approvals may differ.
Yes. Interest-only lowers the monthly repayment during the IO period but does not build equity through principal reduction. APRA-regulated lenders cap higher-risk IO lending; treat IO outputs as exploratory unless your bank has confirmed IO availability for your LVR.
We combine your income, debts, interest rate, and term with front-end and back-end ratio assumptions similar to those used in quick desktop assessments. Banks also apply serviceability buffers (for example testing at a rate higher than the actual rate). Add a higher rate manually if you want a more conservative buffer.
LMI depends on LVR, loan type, and insurer. Enter the loan amount net of any capitalised LMI your broker quoted, or increase the rate slightly to approximate the blended cost. For precision, ask your lender for a repayment including LMI.
Offset maths varies by product (full offset vs partial). This tool models standard amortising loans without daily offset simulation. If you maintain large offset balances, your effective interest paid will be lower than shown.
No. Licensed credit assistance requires an Australian Credit Licence holder to assess your objectives. We provide general educational estimates only.
You can reduce the required deposit in your scenario to mimic a First Home Owner Grant or state scheme, but eligibility rules change by state. Verify with your state revenue office before relying on a grant in your budget.
They apply living-expense benchmarks, credit card limits (even if paid off), existing HECS debt, and child support. Enter those commitments in monthly debts for a closer planning number.
You type the rate you want to stress-test. Swap in the advertised comparison rate from your lender’s factsheet for a realistic payment. Cash rate moves do not automatically flow into this static educational tool.
Yes—use the PDF export so your broker can see the assumptions behind your numbers, which speeds up the fact-find on the first appointment.
It produces estimation-level outputs from the inputs and assumptions you choose. Lenders apply proprietary credit policies, living-cost benchmarks, and verified documents that no public calculator can replicate. Treat every figure as a planning range, then validate with a regulated mortgage professional in your jurisdiction.
Mortgage numbers you type are processed locally in your browser to render charts and tables. This application is not designed to persist your form as a user profile. Standard hosting logs or third-party analytics may still exist—see the privacy policy for detail.
Yes. Affordability mode focuses on how much you may be able to borrow given income and debts, while repayment mode stresses the monthly instalment for a chosen loan amount. Switching modes lets you reconcile borrowing power with cashflow.
No. Mortgages intersect with tax (for example SDLT or mortgage interest deductions) and contract law. Nothing here replaces a qualified adviser, accountant, or solicitor. Regulatory references on the About page are for transparency only.
The editorial team reviews public guidance from central banks, regulators, and tax authorities on a best-effort schedule and documents the review cadence on the About page. Markets move daily—always confirm live pricing with your lender.
Related mortgage services
Compare home loans from Australia's top lenders
Broker booking links are disabled until a regulated partner URL is configured. Use a licensed mortgage professional in your region for quotes.
No obligation · Free initial consultation
See live mortgage rates from multiple lenders side-by-side. Find the best deal for your scenario.
Why compare?
A 0.5% difference in rate on a A$650,000 mortgage could save you A$22,000+ over the full term.
Includes First Home Owner Grant eligibility check
Rate comparison deep-links are not configured. Check lender comparison sites directly for live pricing.
Affiliate disclosure: We may earn a commission.