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How Much Can I Borrow for a Home Loan in 2026? A Realistic Guide

Why Borrowing Capacity Looks Different in 2026

If you’ve used an online borrowing calculator recently and been surprised by the result — lower than you expected — you’re not alone. In 2026, several overlapping factors have tightened how much Australian lenders will approve.

The RBA cash rate rose to 4.10% in March 2026, following back-to-back increases in February and March. On top of that, lenders must stress-test every borrower at their loan rate plus a 3% serviceability buffer (an APRA requirement unchanged since 2021). And from February 2026, new APRA debt-to-income (DTI) rules limit high-leverage lending. Understanding all three factors is essential before you make any home loan decisions.

How Lenders Calculate Your Borrowing Capacity

Every lender uses a slightly different formula, but the fundamentals are consistent across the industry. Your borrowing capacity is essentially the maximum loan amount at which your projected repayments — stress-tested at a higher rate — stay within the portion of income lenders deem serviceable.

Step 1: Gross Assessable Income

Lenders start with your total income: salary, wages, rental income (typically at 80%), regular bonuses (sometimes at 100%, sometimes less), and other documented sources. Not all income is treated equally — casual, contract, or self-employed income is often shaded or requires more documentation.

Step 2: The APRA Serviceability Buffer

APRA requires lenders to assess all new loans at the applicant’s actual interest rate plus 3%. With typical variable home loan rates around 6.0–6.5% in early 2026 (following the RBA’s recent moves), lenders are stress-testing at approximately 9.0–9.5%. This single factor has reduced borrowing capacity for most Australians by 20–30% compared to the low-rate environment of 2020–2021.

Step 3: Living Expenses and Existing Debts

Lenders use the higher of your declared living expenses or the HEM (Household Expenditure Measure) benchmark for your family type and postcode. Any existing debts — credit cards (assessed at the limit, not the balance), personal loans, car loans, HECS/HELP debt — directly reduce borrowing capacity. Cancelling unused credit cards before applying can materially improve your outcome. Our home loan preparation guide covers this in detail.

Step 4: The APRA DTI Cap (New from February 2026)

From 1 February 2026, APRA introduced a new rule: lenders can write no more than 20% of new loans with a debt-to-income (DTI) ratio of six or above. At a DTI of 6, a borrower earning $100,000 can have no more than $600,000 in total debt; at a combined income of $200,000, the DTI-6 limit is $1.2 million.

This doesn’t mean you can’t borrow above a DTI of 6 — it means lenders can only approve a limited proportion of such loans within their portfolio. High-DTI borrowers may face more scrutiny, higher rates, or need to approach multiple lenders. A broker’s access to a wide panel of lenders becomes especially valuable in this environment. You can read more about how this APRA DTI cap affects your borrowing capacity.

Worked Examples: What Can You Borrow in 2026?

The following examples are illustrative estimates based on a standard variable rate of approximately 6.25% (assessed at 9.25% after the 3% buffer), a 30-year loan term, modest living expenses for a single person with no dependants, and no significant existing debts. Actual figures will vary by lender, location, and individual circumstances. Always get a formal assessment from a mortgage broker or lender.

Example 1: $80,000 Gross Annual Income

At $80,000, after tax and typical living expenses assessed by lenders, the monthly surplus available for mortgage repayments is limited. On a stress-tested rate of approximately 9.25%, a borrower in this bracket might qualify for:

Estimated borrowing capacity: $380,000–$430,000
Monthly repayment at 6.25%: approximately $2,600–$2,950 per month
A 5% deposit on a $430,000 home: approximately $21,500 — potentially accessible through the First Home Guarantee

For buyers at this income level, first home buyer grants and the First Home Guarantee scheme can make a real difference. Strategies to boost your pre-approval chances — such as reducing credit card limits and clearing personal loans — are especially valuable here.

Example 2: $120,000 Gross Annual Income

At $120,000, borrowing capacity increases substantially. Assuming similar assumptions (single applicant, no dependants, modest debts):

Estimated borrowing capacity: $560,000–$650,000
Monthly repayment at 6.25% on $600,000: approximately $3,700 per month
DTI check: $600,000 debt on $120,000 income = DTI of 5 — below the 6x threshold, so not subject to the new APRA cap

At this income level, buyers in most capital cities can access meaningful property options, particularly in outer suburbs, regional centres, or with a co-borrower. The First Home Guarantee remains accessible (no income cap) and LMI savings on a $650,000 purchase with 5% deposit are approximately $20,000–$25,000.

Example 3: $180,000 Gross Annual Income

At $180,000, whether individual or combined household income, borrowing capacity reaches the level where the DTI cap becomes relevant for some scenarios:

Estimated borrowing capacity: $800,000–$950,000
Monthly repayment at 6.25% on $900,000: approximately $5,550 per month
DTI check: $900,000 debt on $180,000 income = DTI of 5 — below the 6x threshold in this case
At the upper end (e.g., $1.08M loan): DTI reaches 6, which enters restricted territory

Borrowers at this income level in Sydney and Melbourne may still find they’re limited relative to property prices in their target suburbs. This is where a broker’s ability to compare multiple lenders — each with their own serviceability calculators and DTI tolerances — can result in meaningful differences in approved limits. For refinancing options that could free up capacity, see our refinancing guide.

Factors That Can Increase Your Borrowing Capacity

Borrowing capacity is not fixed — it can be actively managed. Common strategies include:

Reduce or cancel credit cards: Lenders assess credit cards at the limit, not the balance. A $20,000 credit limit reduces your capacity by approximately $80,000–$100,000 depending on the lender.
Pay down personal loans or car loans: Every $500/month in existing debt repayments reduces your borrowing capacity by approximately $70,000–$90,000.
Consolidate HECS/HELP debt understanding: HECS repayments above the threshold are assessed by lenders as an ongoing liability.
Add a co-borrower: A partner, family member or guarantor with income can significantly increase capacity — subject to their own financial position.
Choose the right lender: Different lenders use different serviceability calculators. Some will approve $50,000–$100,000 more than others for the identical borrower. A broker with access to 30+ lenders will identify the most suitable one for your profile.

Why a Broker vs Bank Direct Matters

Going directly to your bank gives you access to one institution’s serviceability calculator, one set of policies, and one product range. A mortgage broker compares across a full panel — often 30 to 60+ lenders. For borrowers near the edge of their capacity, this difference can be significant. One lender may decline; another may approve the same loan at comparable rates. Your broker’s role is also to boost your pre-approval chances by presenting your application in the strongest possible way.

Frequently Asked Questions

Has the RBA rate increase affected borrowing capacity in 2026?

Yes, significantly. The RBA raised the cash rate to 4.10% in March 2026 following hikes in February and March. Variable home loan rates are typically 1.5–2.5% above the cash rate. With APRA’s 3% buffer applied on top, stress-test rates are now around 9–9.5%, which substantially reduces the loan amount borrowers qualify for compared to the low-rate period of 2020–2022.

What is the APRA serviceability buffer and can it change?

APRA requires lenders to assess new borrowers at their loan rate plus 3%. It was increased from 2.5% to 3% in October 2021 and has remained at 3% since. APRA could adjust it in either direction based on macroeconomic conditions, but any change would be announced publicly with advance notice.

Will the APRA DTI cap affect my loan application?

If your total debt (including the proposed new loan) divided by your gross annual income is less than 6, the new DTI limit is unlikely to directly affect you. If it’s above 6, you may face more scrutiny or need to approach lenders with remaining capacity in their high-DTI quota. Working with a broker who knows which lenders have capacity at any given time is the most efficient way to navigate this.

How do I get a realistic estimate of my borrowing capacity?

Online calculators provide a useful starting point, but they use simplified assumptions. The most accurate estimate comes from a formal credit assessment by a mortgage broker or lender, based on your actual income documents, liabilities, and credit history. This is what pre-approval is based on.

Find Out Exactly What You Can Borrow

In a market shaped by rising rates and tighter APRA rules, knowing your real borrowing capacity is the essential first step. At Lagos Financial, we run a thorough assessment across our full lender panel to give you an accurate, lender-verified figure — not a ballpark from an online calculator. Book a complimentary assessment and within days you’ll know exactly where you stand and which lenders will give you the best outcome.

Lagos Financial serves clients across Australia, including as a mortgage broker in Sydney, mortgage broker Bondi Junction, best mortgage broker Launceston, best mortgage broker Bondi Junction.

Learn more about self-employed borrowers, guarantor home loans at Lagos Financial.