How much can I borrow on a $100k salary in Brisbane? A broker's 2026 guide

TL;DR. A single Brisbane buyer earning $100,000 a year before tax, with no other debts and reasonable living expenses, can usually borrow between $470,000 and $620,000 for a home loan in 2026. The range comes from lender-by-lender differences in servicing calculators, stress-test buffers and how each bank treats your living costs. Two earners on $100k combined will land roughly in the same band — joint income matters less than how the lender models your expenses.

The honest short answer

People ask me this every week. They have heard a number on a real-estate forum, or run an online calculator, and want to know whether it actually holds up.

Here is the practical answer for a single applicant on a $100,000 gross salary in Brisbane, with no HECS debt, no credit cards, no car loan, and a modest two-bedroom rental lifestyle:

Lower end (conservative lender): about $470,000
Mid range (most major banks): about $520,000 to $560,000
Upper end (specialist or investor-friendly lender): up to about $620,000

That is a $150,000 swing on the same income — and that swing is the entire reason a broker exists.

If you want to skip the explanation and just see your number against the panel of 50+ lenders we work with, book a free assessment or run the borrowing power calculator for a directional figure.

Why the same person gets a different number from every lender

Every Australian lender has to follow the same APRA rules — but each one interprets them differently inside their servicing calculator. There are four moving parts.

1. The stress-test buffer

Under APRA's serviceability guidance, lenders must assess your application at an interest rate that is at least 3 percentage points above the rate you are actually being offered. So if the variable rate today is around 6.20%, the lender models your repayments at roughly 9.20%.

This buffer alone is the single biggest reason your borrowing power feels lower than the actual loan you would comfortably repay. Lower-buffer lenders (some specialist banks apply a 1.5% to 2.5% buffer on refinances under tightly defined conditions) can offer notably higher capacity to the same applicant.

2. HEM versus declared living expenses

Lenders compare two figures for your monthly living costs and use the higher one:

What you tell them you spend
The Household Expenditure Measure (HEM) for your postcode, income band and household size

HEM in Brisbane for a single adult on a $100k income usually lands around $2,700 to $3,100 a month, depending on the lender's HEM provider. If you declare $2,000 a month, the lender will still use HEM. If you declare $3,800 a month, the lender will use $3,800. People who track their spending honestly often borrow less than people who don't — counter-intuitive, but it is how the calculators work.

3. How each lender treats your other debts

A $10,000 credit card limit (even with a $0 balance) typically reduces your borrowing power by $50,000 to $70,000 because lenders assume you might max it out. A $40,000 HECS-HELP debt at the current repayment threshold cuts borrowing by another $40,000–$60,000. A $500-a-month car loan eats roughly $80,000 of capacity.

Quick win before you apply: close every credit card you do not use, and consider reducing the limit on the one you keep to the actual amount you need.

4. Rental income shading and bonus treatment

If you are buying as an investor, lenders shade your expected rent — typically by 20% — to account for vacancy and management fees. Bonuses, overtime and commission income are often counted at only 80%, and some lenders need a 2-year track record before they will count them at all.

Worked comparison: $100k salary, four lender profiles

Here is the same applicant — single, $100,000 gross income, no debts, one credit card with $5,000 limit, $400/month declared rent expense, no dependants — modelled across four common 2026 lender profiles. The figures are illustrative and rounded.

Lender profile	Stress-test buffer	Living-cost basis	Indicative max loan
Major bank — conservative	3.0%	HEM at $2,950/mo	~$470,000
Major bank — competitive	3.0%	HEM at $2,800/mo	~$520,000
Non-bank lender	2.5%	HEM at $2,700/mo	~$580,000
Specialist / investor lender	1.5%–2.0%*	Actuals + small buffer	~$620,000

*Specialist lender buffers below 3% only apply under tight conditions — typically refinance scenarios with strong equity, low LVR, and a clean credit file. Not all applicants qualify.

The lesson: there is no "your" borrowing capacity in the singular. There is a range, and the right lender for you depends on your goals (max purchase price vs lowest rate vs offset features vs investor flexibility), not just the headline number.

What this actually means for a Brisbane buyer

The current Brisbane house median is north of $900,000 in most established suburbs (CoreLogic Home Value Index, monthly release). On the figures above, a single $100k earner is realistically looking at:

Units and townhouses in middle-ring suburbs (Carindale, Mount Gravatt, Kedron, Annerley, Coorparoo) — entry-level houses are tight
First Home Guarantee territory if buying under the Brisbane price cap (currently $700,000 for the Home Guarantee Scheme)
Outer-ring houses (Logan, Ipswich, Redlands, Moreton Bay) where house prices are 25–35% below the metro median

A dual-income household at the same combined $100k will usually borrow in a similar range — because servicing maths is dominated by living costs and buffers, not raw income. Two earners on $100k combined typically borrow only marginally more than one earner on $100k, unless the second income unlocks dependant-related expense changes.

Five ways to lift your borrowing capacity before you apply

Pay down or close credit cards. A $20,000 unused limit can release $100,000–$140,000 in borrowing capacity overnight.
Lower your car loan or BNPL exposure. Refinancing a personal loan to a longer term reduces monthly repayments and improves servicing — but check the total interest cost.
Track your actual expenses for 60–90 days. If you genuinely spend less than HEM in your category, some lenders will accept your declared figure with bank-statement evidence.
Bundle the right loan structure. Interest-only investment debt and offset-on-investment strategies change how servicing is calculated.
Use the right lender at the right time. Lender appetites shift quarter to quarter — the bank that maxed your servicing in March may have tightened by July.

Frequently asked questions

Q: Does the lender check my bank statements line by line?

Yes. Most major banks now run automated transaction categorisation across 3–6 months of statements. They look at recurring subscriptions, frequency of food delivery, gambling spend, BNPL transactions and how often your account dips into the red. Tidy up the 90 days before you apply.

Q: Will having a guarantor change my borrowing capacity?

A family guarantee can reduce your deposit requirement and avoid Lenders Mortgage Insurance (LMI), but it does not generally increase the amount the lender will lend you. Servicing is still calculated on your income.

Q: Can I borrow more if I salary sacrifice into super?

Salary sacrifice reduces your taxable income, which is the figure most lenders use. So it usually reduces your borrowing capacity. Some lenders will gross it back up for serviceability — this is exactly the kind of policy edge a broker tracks.

Q: How accurate are the online borrowing calculators?

Most public calculators (including ours) give a directional figure based on a single set of assumptions. Real lender calculators ask 15–25 questions and produce different numbers. Use the calculator to get a range, then talk to a broker for the actual application-ready figure.

Q: I'm self-employed — does the $100k figure apply to me?

Self-employed applicants are assessed on net business income, averaged over the last 1 to 2 financial years depending on the lender. A self-employed person showing $100k net is treated similarly to a PAYG earner on $100k, but some lenders apply additional shading. We work with several lenders who specialise in self-employed servicing.

Q: How long does pre-approval take?

Most pre-approvals come back in 1–3 business days once your documents are submitted. Pre-approval is typically valid for 90 days and can be re-submitted. Going to auction without pre-approval is a real risk — most successful bidders we work with come in pre-approved with a 10% buffer above the price they expect to pay.

Before you make a decision

Borrowing capacity is one of three numbers that matter. The other two are:

What you should actually borrow (based on your goals, lifestyle and risk tolerance — usually 75–85% of your max)
What it costs to repay it at the rate and term you choose

If you want a real 2026 number for your situation across our 50+ lender panel — and a conversation about which of the three numbers matters most for the property you have in mind — book a free chat with Karann. We will not pitch a product. We will hand you a one-page summary of where you sit and what to do next.

Last reviewed: 30 May 2026.