APRA's New DTI Rules 2026: What Every Sydney Property Investor Must Know

What Is the APRA DTI Limit and When Did It Start?

The Australian Prudential Regulation Authority (APRA) oversees bank lending standards in Australia. From 1 February 2026, APRA activated a Debt-to-Income (DTI) framework that limits how much high-leverage lending each bank can approve.

The specific rule: lenders may only issue loans where the borrower's total debt is 6 or more times their gross income (a DTI of 6x or above) for up to 20% of their new residential lending per rolling four-quarter period.

Importantly, APRA's rule does not ban high-DTI lending. It limits how much of it each bank can do. This creates a competitive dynamic — some lenders will have quota remaining, others will have exhausted it. The same borrower may be approved at one bank and declined at another based purely on where each institution sits in its quarterly quota.

Who Is Most Affected by the DTI Rules?

The 6x DTI threshold catches most property investors in Sydney — because Sydney's high property prices mean most investors quickly accumulate large total debt relative to income:

As shown, single-income Sydney investors purchasing their second property are frequently above 6x DTI — making this rule directly relevant for a large proportion of the active investor market.

What Loans Are Exempt From the DTI Restriction?

APRA has confirmed that certain loan types are explicitly exempt from the 20% DTI quota:

• Refinancing without increasing the loan amount: If you are refinancing to a lower rate without drawing down additional funds, the DTI rules do not apply. This is a crucial exemption — it means refinancing your existing portfolio remains unrestricted.
• Bridging loans: Short-term bridging finance used during a property transition is exempt.
• Certain construction loans: Some construction lending is excluded from the calculation.

This means investors who are not looking to increase their total debt — but simply want to refinance existing loans to a better rate — are unaffected by the DTI rules. See our 2026 refinancing guide for more.

How Banks Are Managing Their DTI Quota

Because the 20% quota applies at the institution level, different banks will reach their limit at different times. This creates a fundamentally different lending environment than before:

• Fast movers lose quota early: Banks that attract a lot of investor applications may exhaust their quarterly high-DTI quota before other institutions. When quota runs out, they must defer or decline high-DTI applications until the next quarter.
• Smaller lenders may be more accessible: Some second-tier lenders and non-bank lenders have smaller existing investor books and may have more quota remaining when major banks are constrained.
• Timing matters: Applying early in a quarter (before banks have used their quota) improves approval odds for high-DTI borrowers. Applying late in the quarter — when quota may be exhausted — increases declinal risk.

This is exactly why using a mortgage broker is now more valuable than ever for investors. A broker with live knowledge of which lenders have available DTI quota is essential — individual borrowers cannot access this information.

Strategies for Investors Affected by the DTI Limit

If you are a Sydney property investor above or near the 6x DTI threshold, here are the most effective strategies in the current environment:

1. Apply earlier in the quarter: Banks track their high-DTI quota on a rolling 4-quarter basis. Submitting applications in the first 6–8 weeks of each quarter maximises the chance that quota is still available.
2. Increase income evidence: If you have rental income, bonuses, or other supplementary income that some lenders assess conservatively, working with a broker to identify the most income-favourable lender policy can lower your effective DTI.
3. Reduce DTI before applying: Paying down non-deductible debt (owner-occupied home loan) reduces total debt and therefore DTI. This is consistent with sound tax strategy — high-rate deductible investment debt vs non-deductible owner-occupied debt.
4. Use non-bank lenders: Non-bank lenders are not subject to APRA's DTI rules in the same way as banks. Some specialist non-bank lenders can approve high-DTI investor applications that banks are turning away.
5. Consider the loan purpose carefully: Equity release refinances that don't increase total net borrowings may be structured as exempt from the DTI cap. Your broker can advise on structure.

For property investors looking at broader portfolio strategy, our equity and investment loan guide covers structuring in detail. Additional investor resources at Home Loans Hub.

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