Best Mortgage Calculators in Australia
Calculate Australian mortgage payments and affordability. Tools for all loan types.
Introduction
Australia's property market is characterised by high prices in major cities, Lenders Mortgage Insurance above 80% LVR, and state-based stamp duty regimes that vary significantly from NSW to QLD. Government schemes like the First Home Guarantee have helped some buyers enter the market with just 5% deposit without LMI. These calculators help Australian buyers navigate every step of the purchase process.
Key Calculators
- Home Loan Repayment Calculator — Standard principal and interest repayments over 25 or 30 years. Australian mortgages compound monthly. Use this to compare variable vs fixed rate periods: Try it →
- LVR and LMI Calculator — Lenders Mortgage Insurance is required when LVR exceeds 80% (i.e., deposit less than 20%). LMI can add $10,000–$30,000+ to your loan cost depending on LVR and loan size: Try it →
- First Home Guarantee Calculator — Under the First Home Guarantee scheme, eligible first-home buyers can purchase with 5% deposit with the government guaranteeing 15%, avoiding LMI entirely. Property price caps apply by location: Try it →
- Stamp Duty Calculator — Stamp duty varies significantly by state. NSW: tiered up to 5.5%. VIC: up to 5.5%, but with first-home buyer concessions up to $600,000. QLD: up to 5.75% with concessions for owner-occupiers: Try it →
Monthly Repayment Examples (AUD, Variable at 6.2%, 30yr P&I)
| Loan Amount (AUD) | Monthly Repayment | Total Interest (30yr) | LMI Required? |
|---|---|---|---|
| $400,000 | $2,433 | $476,000 | If deposit under 20% |
| $600,000 | $3,649 | $713,600 | If deposit under 20% |
| $800,000 | $4,866 | $951,700 | If deposit under 20% |
Tips for Australian Homebuyers
Always get pre-approval before making an offer — Australian auctions are unconditional, and cooling-off periods are short or non-existent in some states. Factor stamp duty into your savings target early; in NSW, buying a $750,000 home costs approximately $29,000 in stamp duty. If you're close to the 20% LVR threshold, consider saving a little longer to avoid LMI — which can cost $15,000–$20,000 on a $600,000 loan. The First Home Guarantee is excellent if you qualify; property price caps in capital cities were $800,000 (NSW/VIC) and $700,000 (QLD/WA) as of 2025.