How Much Do You Need To Earn To Buy in Perth, WA, What Lenders Check

There is no single salary that gets you into the Perth property market, and that is the part most salary calculators get wrong. Lenders do not look at a number on your payslip and approve or decline you on the spot. They look at your income type, your existing debts, your living expenses, and how consistent your earnings have been, then they run the numbers at a rate higher than what you would actually pay.

What that means in practice is that two people earning the same salary can walk away from two different lenders with borrowing limits that differ by $100,000 or more. The difference is rarely the salary itself. It is how that salary is assessed, which debts are counted, and which lenders treat your particular income shape more favourably than others. In suburbs like Midland, where REIWA data shows a median house price of $710,000, or Armadale at $700,000, the gap between what different lenders will offer can determine whether you buy this year or keep waiting.

Our team helps buyers across Perth, WA work through exactly this question, comparing how different lenders will read your income across our panel. The home loan structure and the lender you end up with matter as much as the rate.

How much do you need to earn to buy a home in Perth, WA?

There is no universal income threshold, because the answer depends on the purchase price, your deposit, your existing debts and the lender you approach. For a median-priced house in an outer suburb like Gosnells ($760,000) with a 10% deposit, most lenders would want to see a household income somewhere in the $100,000 to $130,000 range before debts, assessed at the actual rate plus APRA's 3% buffer. For an inner suburb like Subiaco, where the median sits at $2,294,400, the income requirement is a completely different conversation.

Source: REIWA (Landgate data, August 2026) and APRA.

How do lenders actually calculate what you can borrow?

Your borrowing capacity is not a function of your income alone. Lenders calculate the maximum loan you could service at an assessment rate, which is your actual loan rate plus the APRA serviceability buffer of 3.0 percentage points. That buffer is designed to protect borrowers if rates rise, and it means the loan you are approved for is tested at a rate meaningfully higher than what you would pay on day one.

On top of the rate test, lenders apply the Household Expenditure Measure as a floor for living expenses. If your declared expenses sit below the benchmark, the lender substitutes the benchmark anyway, so spending less than the HEM threshold does not improve your position. What the HEM excludes matters too: rent, mortgage repayments, council rates, home insurance and all existing loan and credit card commitments are added separately on top of it.

Credit card limits are assessed at roughly 3% to 3.8% of the limit per month, regardless of what you owe. A $20,000 limit on a card you never use is still treated as a commitment. If you are applying soon, reducing or cancelling credit card limits is one of the fastest ways to lift your borrowing number.

What types of income do lenders count, and how?

Not all income is counted equally, and the difference between how two lenders read the same payslip is often where your borrowing capacity is won or lost.

How lenders typically treat different income types:

• › Base salary, permanent: counted in full with current payslips once probation is passed.
• › Overtime and shift penalties: most lenders accept somewhere between 80% and 100% once a consistent history exists, typically 6 to 12 months. That single policy difference can move your assessed income materially.
• › Casual income: often counted in full once around 12 months of history in the same role is established.
• › Bonuses and commissions: typically averaged over one to two years, with most lenders discounting to 80% to 100% of that average.
• › Self-employed income: two years of tax returns is standard. Lenders may add back certain expenses to reach an assessable income figure, and some will accept one year for strong applications.
• › Rental income: typically shaded to about 80% of gross rent, with holding costs added separately.

Source: APRA prudential guidance and industry-standard lender practice.

What does Perth's market actually require by suburb?

REIWA data shows Perth house medians running from $700,000 in Armadale and $710,000 in Midland, through to $967,000 in Morley and $1,013,000 in Joondalup in the middle of the market, up to $2,294,400 in Subiaco and $3,575,000 in Cottesloe at the premium end. What you need to earn is directly tied to which part of that range you are targeting.

The $850,000 First Home Guarantee price cap covers eleven approved suburbs at or under that threshold, including Armadale, Midland, Gosnells, Maddington, Cannington, Butler, Baldivis, Yanchep, Ellenbrook, Bentley and Byford. If you are a first home buyer working within the cap, the income requirement is lower and the deposit options are wider. Units in most Perth suburbs also sit under the cap, with medians in suburbs like Cannington, Gosnells and Thornlie below $630,000.

For buyers targeting established suburbs closer to the city, house medians are well above the cap. The income requirement scales with the purchase price, and at those levels the serviceability assessment is the main constraint rather than the deposit.

Source: REIWA (Landgate data, August 2026) and Housing Australia.

Get in touch Need help with a home loan in Perth? We're a local team who understand how lenders actually assess your situation, not just your rate. We'll compare your options across 60+ lenders to find the right fit. Chat to Our Team Call 08 9367 4222

What reduces your borrowing capacity besides income?

Income is only one side of the equation. Lenders subtract the cost of your existing commitments before they calculate how much you can service on a new loan.

The main capacity reducers:

• › Credit card limits: assessed at roughly 3% to 3.8% of the limit per month, whether you use the card or not. A limit you are not using still cuts capacity.
• › HECS or HELP debt: the compulsory repayment, not the balance, is treated as an ongoing commitment. At higher incomes the repayment threshold lifts the deduction, and lenders assess this before they calculate what is left for a loan.
• › Personal loans and car finance: counted as monthly commitments against serviceability, in full.
• › Buy now pay later accounts: appear on bank statements and are treated as ongoing commitments by most lenders.
• › Number of dependants: lenders increase the living expense benchmark as dependant numbers rise, which directly reduces what you can borrow.

If your application carries most of these at once, the income threshold to buy at a given price point rises considerably. Clearing or reducing credit limits before you apply is one of the few levers a buyer fully controls.

When does the income question not have a clean answer?

The income-to-borrowing relationship breaks down in a few common situations, and knowing which one applies to you is more useful than a salary guide.

If your income is variable, overtime-heavy or paid through a trust or company, lenders do not all read it the same way. A buyer with $130,000 in salary gets a straightforward assessment. A buyer with $110,000 in base salary and $25,000 in consistent overtime may get a higher or lower number depending entirely on which lender they approach and how long that overtime history is.

Similarly, if you are self-employed or a sole trader, the headline income on your tax return is often not what the lender uses. Add-backs, trust distributions and retained profits are treated differently across lenders, and the second year of returns is where the picture either sharpens or complicates. For buyers in that position, the answer to "how much do I need to earn" cannot be separated from "how is that earning structured".

The honest position is that for most variable-income buyers, the number is a range, not a single figure, and the right end of that range depends on lender selection.

How does a mortgage broker help buyers work out where they stand in Perth, WA?

The value of running this through a broker rather than a single lender's calculator is that you see the full range, not one lender's position. The policy differences that move your number the most are not published side by side anywhere.

Three lender-policy differences that matter most here:

• › Overtime shading: some lenders count consistent overtime in full; others shade it to 80%. On a buyer earning $25,000 in annual overtime, that single policy difference can move the assessed income by $5,000 or more.
• › HECS treatment: all lenders count the compulsory HECS repayment as a commitment, but how they estimate it differs. Some use the ATO repayment schedule; others apply a more conservative estimate. The gap is real and it compounds with income level.
• › APRA DTI cap: lenders are restricted in how much new lending they can write at a debt-to-income ratio of six times gross income or higher. A lender that has already written a large share of high-DTI loans in a quarter may decline a file another lender on the same panel would write. Timing and lender selection interact.

Comparing across a 60+ lender panel gives you the actual range, not a single lender's version of it. That is where the useful number comes from.

What goes wrong when buyers try to answer this question alone?

The most common errors:

• › Using a generic calculator: online calculators use a single income figure and assume no debts or commitments. The actual assessment includes the buffer, the HEM, all existing debts and credit limits, and each lender's own income-shading rules. The calculator number is almost always higher than the real one.
• › Forgetting the buffer: buyers compare their salary to repayments at the advertised rate and conclude they can afford it. Lenders assess it at the actual rate plus 3%, which is materially higher. The affordability test is harder than the monthly repayment suggests.
• › Ignoring the APRA DTI cap: buyers at higher income levels sometimes find a lender declines despite a healthy salary because total debt, including existing loans and credit cards, pushes the ratio above six times gross income. The issue is not earnings; it is the debt load.
• › Applying to the wrong lender first: a declined application sits on your credit file for five years as an enquiry. Mapping the right lender before applying is far cheaper than trialling two or three in sequence.

Frequently Asked Questions

Is there a minimum income to get a home loan in Perth?

No lender publishes a minimum salary, because borrowing capacity depends on your full financial picture. What matters is whether your income, after debts and living expenses, can service the loan at the assessment rate.

Does HECS debt stop me buying a home in Perth?

HECS debt does not disqualify you, but the compulsory repayment is counted as an ongoing commitment that reduces what lenders will offer. A large HECS balance at a higher income level has a meaningful effect on your assessed capacity.

Is a professional LMI waiver or the First Home Guarantee better for reducing the deposit required?

It depends on your occupation and the purchase price. The First Home Guarantee requires a 5% deposit and has a Perth price cap; a professional LMI waiver depends on which lenders your broker has access to and on your circumstances, which is worth a conversation before you apply.

Can two incomes double my borrowing capacity in Perth?

Yes, generally. A joint application combines both incomes and both sets of debts. The gain is largest where one borrower earns significantly more than the other and carries fewer commitments.

How does the APRA debt-to-income cap affect Perth buyers?

Lenders can write no more than 20% of new lending at a DTI of six times gross income or higher. Buyers with existing debt who are approaching that ratio may find some lenders decline while others still write the loan, because each lender tracks its own DTI pool separately.

Is a mortgage broker better than going to my bank for this question?

A mortgage broker, every time. Your bank can only show you its own assessment; a broker compares how multiple lenders read your income, your debts and your structure, which is where the range in borrowing capacity actually comes from.

Your Next Steps

Working out what you need to earn to buy in Perth is really a question about how lenders read your specific income, debts and commitments, not a single salary figure. The answer differs by lender, by income type, and by how your credit profile looks at the time you apply. Getting that picture clear before you start looking is what prevents a declined application landing on your file.

The right lender for your income situation depends on your circumstances, and that is a conversation worth having. Talk to the Launch Finance team or call 08 9367 4222, and we'll compare your options across 60+ lenders.

About the author Joe Del Borrello Director, Launch Finance Joe Del Borrello is a Director at Launch Finance and has been broking in Perth since 2004. Diploma-qualified and regularly featured in the Professional Lenders Association Network of Australia's (PLAN) Top 200 Mortgage Brokers, he helps first home buyers, investors, self-employed borrowers and refinancers across Perth, comparing loans from a wide panel of lenders at no cost to the borrower. Joe is a Credit Representative (No. 399763) of BLSSA Pty Ltd (ABN 69 117 651 760), Australian Credit Licence No. 391237. Meet the team → Book a free call →

Launch Finance · Perth, WA · Launch Finance Pty Ltd (ABN 17 163 528 701), Corporate Credit Representative 454041 of BLSSA Pty Ltd (ABN 69 117 651 760), Australian Credit Licence 391237 · General information only - this article does not constitute financial advice. Please consider your own circumstances and seek professional advice before making any financial decisions.