On a $100,000 salary in Australia, most lenders will approve you for between $500,000 and $650,000 in 2026 — but the actual figure depends heavily on your expenses, debts, deposit size, and which lender you use. Here's the full breakdown.
Quick Answer: $100K Salary Borrowing Estimate
$500K
Conservative estimate
(high expenses / debts)
$580K
Typical estimate
(average expenses)
$650K
Best case
(low expenses, no debts)
These are estimates only. Your actual borrowing power varies by lender. Get a precise figure: call 0432 634 648
How Lenders Calculate What You Can Borrow
Australian lenders don't use a simple "6x your salary" formula — though that's a useful starting estimate. They assess your borrowing power using a more detailed process:
- Gross income: Your total income before tax — includes salary, overtime, allowances, bonus (sometimes), rental income, and other verified income streams
- Serviceability buffer: By law, lenders must assess your ability to repay the loan at a rate 3% above the current interest rate (e.g., if the loan rate is 5.8%, they test at 8.8%)
- Expenses: Lenders use the higher of your declared living expenses or HEM (Household Expenditure Measure) benchmarks
- Existing debts: Car loans, personal loans, credit card limits (even unused), HECS/HELP debt — all reduce borrowing power
- Number of dependants: Each child or dependant increases assumed expenses
$100K Salary: Borrowing by Scenario
Here are real-world borrowing estimates for common situations on a $100,000 gross salary in 2026:
| Scenario | Est. Borrowing Power |
|---|---|
| Single, no kids, no debts, modest expenses | ~$600K–$650K |
| Single, 1 kid, $10K credit card limit, car loan | ~$480K–$530K |
| Single, HECS debt ($50K), no other debts | ~$550K–$600K |
| Couple: $100K + $70K, no kids, no debts | ~$950K–$1.05M |
| Couple: $100K + $70K, 2 kids, car finance | ~$780K–$850K |
Estimates only. Rates assumed at current market (5.5–6.5% depending on lender). Individual results vary significantly.
How HECS/HELP Debt Affects Borrowing
Many Australians earning $100K have HECS/HELP debt from university. This affects your borrowing power in two ways:
- Your employer automatically deducts HELP repayments from your gross salary once you earn above the threshold (~$51K/year in 2026)
- Lenders reduce your effective income by the mandatory HELP repayment amount when calculating serviceability
- On $100K income, your HELP repayment rate is approximately 6.5–7%, so $6,500–$7,000 per year is deducted from your serviceable income
- This typically reduces borrowing power by $30,000–$50,000 compared to someone with no HECS
Credit Card Limits vs Balance
Lenders assess your credit card limit — not the amount you actually owe. A $20,000 credit card limit you never use still reduces your borrowing power by approximately $60,000–$80,000. Consider reducing or cancelling credit cards before applying to maximise your loan amount.
What Can $580K–$650K Buy in Sydney?
On a $100K single income, you'll be borrowing in the $550K–$650K range. Add your deposit (say $40K–$60K saved), and your purchasing power is roughly $600K–$710K. Here's what that buys in 2026 Sydney:
- Campbelltown: A solid 3–4 bedroom established house or a smaller new build in an estate — well within reach Guide →
- Bardia: Established home, larger lots — very achievable Guide →
- Liverpool: A 2–3 bedroom house or larger townhouse — doable on this budget Guide →
- Penrith: Units and smaller houses — achievable
- Inner suburbs: Units only at this price point — typically $600K–$800K for a 1–2BR unit in most inner-west or south Sydney suburbs
How to Increase Your Borrowing Power on $100K
If the estimates above aren't enough for your target property, here are proven strategies to increase what you can borrow:
- Reduce credit card limits — cancel unused cards or lower limits significantly before applying
- Pay off small debts — personal loans, car loans, and buy-now-pay-later all count against you
- Save a larger deposit — reduces the loan required and demonstrates saving discipline to lenders
- Buy with a partner or co-borrower — combining incomes can dramatically increase borrowing power
- Use a guarantor — a parent's equity can act as security, allowing a larger loan without a bigger deposit
- Choose the right lender — borrowing power varies by up to $100,000+ between lenders for the same application. A broker compares all of them.
Lender Variation is Real
For the same $100K income and expenses, borrowing power can vary by $80,000–$130,000 across different lenders. This is why using a broker matters — we know which lender will give you the most on your specific profile.
Your Repayments on $580K Loan
At a 5.89% interest rate (a competitive rate for 2026) on a $580,000 loan over 30 years:
- Monthly repayment: ~$3,440
- Weekly repayment: ~$794
- As % of $100K gross income: ~41% of gross (within lender limits)
- After tax, take-home (estimated): ~$6,500/month → ~$3,060 remaining after mortgage
Tight, but manageable — especially if your expenses are reasonable and you don't have significant other debts. Want to see repayments for your exact loan amount? Use our mortgage calculator.
Get Your Exact Borrowing Power — Free
Give us 2 minutes on the phone and we'll tell you exactly what you can borrow, which lenders will approve you, and what your repayments would be.
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