Aussie Mortgage Calc

Australian Mortgage Calculator

Comprehensive mortgage calculations for Australian property buyers. All amounts in AUD.

LVR (Loan to Value Ratio)

• LVR = (Loan Amount / Property Value) × 100
• Example:
• Property: $800,000
• Loan: $640,000
• LVR: 80%

Monthly Repayment (P&I)

• M = P × [r(1+r)^n] / [(1+r)^n – 1]
• Where:
• P = Principal (loan amount)
• r = Monthly interest rate (annual rate / 12)
• n = Total months (loan term × 12)
• Example: $500,000 loan at 6.5% over 30 years
• Monthly rate: 0.065/12 = 0.00542
• Months: 360
• Monthly repayment: $3,160

Interest Only Repayment

• Monthly IO = Principal × (Annual Rate / 12)
• Example: $500,000 at 6.5%
• Monthly IO: $2,708

NSW (New South Wales)

Property ValueDuty Rate$0 – $16,0001.25%$16,001 – $35,000$200 + 1.50% of excess$35,001 – $93,000$485 + 1.75% of excess$93,001 – $351,000$1,500 + 3.50% of excess$351,001 – $1,168,000$10,530 + 4.50% of excessOver $1,168,000$47,295 + 5.50% of excess First Home Buyer: Full exemption up to $800,000; concession $800,001-$1,000,000

VIC (Victoria)

Property ValueDuty Rate$0 – $25,0001.4%$25,001 – $130,000$350 + 2.4% of excess$130,001 – $960,000$2,870 + 6.0% of excessOver $960,0005.5% flat First Home Buyer: Full exemption up to $600,000; concession $600,001-$750,000

QLD (Queensland)

Property ValueDuty Rate$0 – $350,0001.0% (min $0)$350,001 – $540,000$3,500 + 3.5% of excess$540,001 – $1,000,000$10,150 + 4.5% of excessOver $1,000,000$30,850 + 5.75% of excess First Home Buyer: Full exemption up to $700,000 (for new homes); concession for established

WA (Western Australia)

Property ValueDuty Rate$0 – $120,0001.9%$120,001 – $150,000$2,280 + 2.85% of excess$150,001 – $360,000$3,135 + 3.80% of excess$360,001 – $725,000$11,115 + 4.75% of excessOver $725,000$28,453 + 5.15% of excess First Home Buyer: Full exemption up to $430,000; concession $430,001-$530,000

SA (South Australia)

Property ValueDuty Rate$0 – $12,0001.0%$12,001 – $30,000$120 + 2.0% of excess$30,001 – $50,000$480 + 3.0% of excess$50,001 – $100,000$1,080 + 3.5% of excess$100,001 – $200,000$2,830 + 4.0% of excess$200,001 – $250,000$6,830 + 4.25% of excess$250,001 – $300,000$8,955 + 4.75% of excess$300,001 – $500,000$11,330 + 5.0% of excessOver $500,000$21,330 + 5.5% of excess First Home Buyer: No stamp duty for properties up to $650,000 (eligible buyers)

TAS (Tasmania)

Property ValueDuty Rate$0 – $3,000$50$3,001 – $25,000$50 + 1.75% of excess$25,001 – $75,000$435 + 2.25% of excess$75,001 – $200,000$1,560 + 3.50% of excess$200,001 – $375,000$5,935 + 4.00% of excess$375,001 – $725,000$12,935 + 4.25% of excessOver $725,000$27,810 + 4.50% of excess First Home Buyer: 50% duty discount for properties up to $600,000

NT (Northern Territory)

Property ValueDuty Rate$0 – $525,000V = 0.06571441 × V^2 ÷ 1000Over $525,0005.45% flat minus $4,823.45 First Home Buyer: Up to $18,601 discount for properties under $650,000

ACT (Australian Capital Territory)

Property ValueDuty Rate$0 – $260,000$0.60 per $100 or part$260,001 – $300,000$1,560 + $2.20 per $100$300,001 – $500,000$2,440 + $3.40 per $100$500,001 – $750,000$9,240 + $4.32 per $100$750,001 – $1,000,000$20,040 + $5.90 per $100$1,000,001 – $1,455,000$34,790 + $6.40 per $100Over $1,455,000$63,910 + $4.54 per $100 First Home Buyer: Full exemption up to $1,000,000 (income-tested)

LMI (Lenders Mortgage Insurance)

LMI is required when LVR > 80%. Estimated rates: LVRLMI as % of Loan80.01% – 85%0.5% – 1.0%85.01% – 90%1.5% – 2.5%90.01% – 95%3.0% – 4.5% Example: $600,000 loan at 90% LVR LMI estimate: ~$12,000 – $15,000 (can be added to loan) Note: Actual LMI varies by lender, LVR tier, loan amount, and borrower profile. Use lender calculators for exact quotes.

First Home Owner Grant (FHOG)

StateGrant AmountProperty CapNSW$10,000$600,000 (new homes only)VIC$10,000$750,000 (regional: higher)QLD$30,000$750,000 (new homes only)WA$10,000$750,000 (new homes)SA$15,000$650,000 (new homes only)TAS$30,000$600,000 (new homes only)NT$10,000No cap (new homes)ACTAbolished—

Borrowing Power (Quick Estimate)

Basic rule of thumb: Max Borrowing ≈ (Annual Income × 6) – Existing Debts More conservative: Max Borrowing ≈ (Annual Income × 5) – Existing Debts Factors affecting actual borrowing power: Income type (PAYG vs self-employed) Existing debts (credit cards, HECS, car loans) Living expenses (HEM benchmark) Interest rate buffer (usually +3%) Dependents

Key Contacts

Revenue NSW: revenue.nsw.gov.au State Revenue Victoria: sro.vic.gov.au Queensland Treasury: qld.gov.au/housing WA RevenueWA: wa.gov.au/revenuelicensing RevenueSA: revenuesa.sa.gov.au Tasmania State Revenue: treasury.tas.gov.au NT Treasury: treasury.nt.gov.au ACT Revenue: revenue.act.gov.au

Disclaimer

This skill provides estimates for educational purposes only. Stamp duty rates, concessions, and grants change periodically. Always verify with official state revenue offices and consult a qualified mortgage broker or financial advisor before making property decisions. Built by Oney & Co — Helping Australians navigate lending with clarity.