First Home Buyer Budget Calculator
Plan a first home purchase in Australia with state stamp duty, FHB concessions, and a stress-tested monthly budget verdict (safe / stretched / risky).
Cash you can put toward the deposit at settlement.
HELP, car loan, child support, ongoing subscriptions.
Some FHB concessions and price caps differ between metro and regional.
Risk verdict — Risky
Repayments are pressing into a high-stress zone or the deposit is too thin for a comfortable first step.
Monthly repayment (base)$3,858.55
Stress test +1% rate$4,276.37
Stress test +2% rate$4,710.85
Loan amount$630,000
Deposit %16.0% of price
LVR84.0%
Stamp duty$0
Government fees + transfer$365
Total cash needed at settlement$125,365
Concession headlineNSW first-home duty concession applied.
Safe property cap$364,450
- Your deposit is 16.0% of the price. Under 20% lenders usually charge Lenders Mortgage Insurance (not included here), and some require at least 5%.
Common questions
What does the safe / stretched / risky verdict mean?
Safe means the base repayment AND a +2% rate stress test both fit a conservative budget AND your deposit is healthy. Stretched means the base repayment fits a more generous budget but stress shock may bite. Risky means current commitments leave too little headroom or deposit is too thin.
Does this include first home buyer stamp duty concessions?
Yes — each state's FHB concessions and price caps are applied automatically based on the state code, property type (new vs established), and price. The result shows total cash needed including concessions.
Should I lower the deposit if it changes the verdict?
Generally no. The deposit threshold drives whether the plan is sustainable under rate shock. If lowering it is the only way to a safer verdict, the property price is probably too high for your situation.
Tax Accuracy & Sources
Tax year: 2026-27
This calculator is an estimate tool and may not cover all personal circumstances. For state-based taxes, confirm details with your state or territory revenue office.
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