On a $100,000 gross salary in Australia, most lenders will approve a home loan in the range of $490,000 to $590,000, depending on your living expenses, debts, and the lender’s credit policy. With few debts and moderate expenses, some borrowers at this income level may qualify for up to $620,000–$650,000.
Estimated Borrowing Power on $100,000
| Scenario | Estimated borrowing power | Monthly repayment at 6% |
|---|---|---|
| Low expenses, no debts | ~$580,000–$620,000 | ~$3,480–$3,720 |
| Moderate expenses, no debts | ~$510,000–$560,000 | ~$3,060–$3,360 |
| With $10k credit card limit | ~$460,000–$520,000 | ~$2,760–$3,120 |
| With $500/month car loan | ~$420,000–$480,000 | ~$2,520–$2,880 |
| With HECS-HELP debt | ~$450,000–$510,000 | ~$2,700–$3,060 |
Based on 30-year P&I loan at 6.00% p.a., assessed at 9.00% (APRA buffer). Estimates vary between lenders. Use our borrowing power calculator for a personalised estimate.
How Lenders Assess a $100,000 Income
Lenders start with your gross annual income of $100,000. After applying the PAYG withholding schedule and Medicare levy, your approximate take-home pay is around $73,000–$75,000 per year ($6,100–$6,250 per month net).
Lenders don’t use your net income directly — they use gross income in their serviceability calculations, comparing it to:
- Your monthly living expenses (benchmarked against HEM for your household type)
- All existing debt commitments (car loans, credit cards, HECS)
- The proposed mortgage repayment at the assessment rate (your actual rate + APRA’s 3% buffer)
At 6.00% p.a., the assessment rate is 9.00%. On a $550,000 loan over 30 years, the monthly repayment at 9.00% is approximately $4,425 — which lenders use to test whether you can comfortably service the debt if rates rise to this level.
HECS-HELP Impact
If you earn $100,000 and have a HECS-HELP debt, the ATO applies a compulsory repayment rate of 7.5% of your taxable income ($7,500/year = $625/month) in FY2025–26. Lenders deduct this as a commitment, reducing your available income for mortgage servicing.
Effect: HECS at $100,000 income reduces borrowing power by approximately $50,000–$70,000 compared to an applicant without HECS.
If your HECS balance is small (under $20,000–$30,000), it may be worth considering paying it off before applying. See our HECS and home loans guide for the full analysis.
Repayment Estimates by Loan Size
| Loan amount | Monthly repayment (6%, 30yr) | Fortnightly | % of gross income |
|---|---|---|---|
| $400,000 | $2,398 | $1,107 | 29% |
| $450,000 | $2,698 | $1,245 | 32% |
| $500,000 | $2,998 | $1,384 | 36% |
| $550,000 | $3,298 | $1,522 | 40% |
| $600,000 | $3,597 | $1,660 | 43% |
Most financial advisers recommend keeping housing costs below 30–35% of gross income. At $100,000 gross, 30% is $2,500/month — roughly consistent with a $420,000–$450,000 loan at 6%.
However, many Australians carry mortgages above 35% of gross income, particularly in Sydney and Melbourne. This is not automatically unaffordable — it depends on your other expenses and financial buffer.
What Deposit Do You Need?
For a $550,000 loan, you need a deposit — plus stamp duty and buying costs. Here’s the breakdown:
| Purchase price | Deposit (10%) | Estimated stamp duty (NSW) | Total funds needed |
|---|---|---|---|
| $550,000 | $55,000 | ~$19,800 | ~$78,000 |
| $600,000 | $60,000 | ~$22,490 | ~$87,000 |
| $650,000 | $65,000 | ~$24,965 | ~$95,000 |
With a 10% deposit and 90% LVR, you’ll pay LMI — estimated at $9,000–$12,000 on a $550,000 loan (see our LMI calculator). A 20% deposit eliminates LMI.
On $100,000 income, saving for a deposit typically takes 3–6 years depending on your living situation, savings rate, and whether you’re renting. Using the First Home Super Saver Scheme (FHSS) can accelerate this. See our FHSS guide.
How to Maximise Your Borrowing Power on $100,000
Close unused credit cards — the single fastest improvement. Reducing credit card limits by $10,000 adds approximately $30,000–$40,000 to your borrowing power.
Pay down other debts — clearing a $12,000 car loan adds approximately $50,000–$70,000 in borrowing capacity.
Choose the right lender — lenders differ significantly in how they assess income, HEM benchmarks, and credit policy. Some lenders at the same income will offer $80,000 more than others. A mortgage broker can identify which lender’s policy best suits your circumstances.
Consider joint purchasing — a second income substantially increases borrowing power. A combined household income of $150,000 can typically borrow $850,000–$950,000.
Wait for a rate cut — if the RBA continues cutting the cash rate in 2025–26, the APRA buffer of 3% stays fixed, but your assessment rate drops when advertised rates fall. Each 0.25% rate cut adds approximately $15,000–$20,000 in borrowing power at this income level.
What Can $100,000 Buy Across Australia?
With estimated borrowing power of $520,000–$580,000, and a 10–20% deposit of $60,000–$130,000, a $100,000-salary buyer may be looking at properties in the $580,000–$710,000 range (depending on deposit savings).
| City | What this buys | Notes |
|---|---|---|
| Sydney | Unit in outer suburbs or satellite cities (Parramatta, Penrith, Liverpool) | Median house price ~$1.45M makes houses very difficult |
| Melbourne | Unit or small townhouse in middle suburbs, house in outer suburbs | Median house ~$940,000 |
| Brisbane | Established house in outer suburbs, apartment in inner city | More accessible than Sydney/Melbourne |
| Perth | House in many suburban areas, strong value relative to income | More affordable than eastern states |
| Adelaide | Good purchasing power; house options in most suburbs | Lower entry point than major cities |
| Regional | More purchasing power; wider property choices | Consider employment and lifestyle factors |
FAQ — Borrowing $100,000 Salary
Can I buy a house in Sydney on $100,000?
It’s very difficult on a single $100,000 income given Sydney’s median house price of approximately $1.45–1.5 million. Most buyers at this income level target apartments, units, or satellite city locations (Penrith, Liverpool, Parramatta, Central Coast) where prices are more achievable. Government schemes (First Home Guarantee, FHOG) can help reduce deposit requirements. See our income needed to buy in Sydney guide.
Is $100,000 enough for a mortgage in 2026?
Yes — $100,000 is above the Australian average salary (~$95,000 as at 2025 ABS data) and supports a home loan in the $490,000–$590,000 range at current rates. In most Australian cities outside Sydney and Melbourne, this supports purchase of an established house with a reasonable deposit.
What is a comfortable mortgage repayment on $100,000?
A common affordability benchmark is 30% of gross income for all housing costs. At $100,000, 30% = $2,500/month. This is consistent with a loan of approximately $415,000–$440,000 at 6% over 30 years. Many borrowers exceed this — the practical upper limit is whatever passes the lender’s serviceability test.
Borrowing power estimates are indicative only and depend on individual lender assessments. Repayment figures assume a 6.00% p.a. interest rate and 30-year term. Actual results will vary. For advice tailored to your situation, speak with a licensed mortgage broker. Find one through MoneySmart.