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APRA’s New 2026 Lending Rules Explained – Home & Investment Lending

October 9, 2025 / Written by William Xin

 

By William Xin, Founder & Director, Xin Mortgage

hotspotting.com.au and propertyU


APRA New Lending Rules—What this Means for Investors & Home Buyers

As the regulatory and lending landscape shifts yet again, investors and homebuyers across Australia are asking, “What does the new borrowing environment really mean for me?” With fresh constraints introduced by the Australian Prudential Regulation Authority (APRA), now is the time to take stock of the true implications, not just for credit availability and investment lending but for long-term strategy, investment confidence, and housing affordability.

In this guest post, we unpack what’s changed, why it matters, and how smart buyers and investors should respond.

What are the new APRA rules on high debt-to-income lending (DTI ≥ 6× income), and why does APRA say it’s needed now?

APRA has introduced a cap that applies only to authorised deposit-taking institutions (ADIs), limiting them to issuing no more than 20% of new owner-occupied and investment home loans at a debt-to-income ratio of six times income or higher, effective 1 February 2026. Non-bank lenders are not subject to this rule.

The purpose of this ADI-specific restriction is to contain systemic risk at a time when interest rates are easing, borrowing capacity is rising, and housing prices continue to accelerate.

APRA’s concern is not a deterioration in lending standards, but that high-DTI lending, particularly among investors, is increasing. Historically, rapid household debt growth during low-rate environments has created vulnerabilities that can build faster than regulators can respond. By intervening early, APRA aims to reinforce financial stability and strengthen borrower resilience across the cycle.

How binding is the new 20% cap likely to be immediately and over the next 12–18 months?

In the short term, the cap is unlikely to be restrictive for most ADIs. With current interest rates, owner-occupied DTIs sit around 5× income, and investment DTIs around 5.5×, meaning most lenders are well below the 20% cap for DTI ≥ 6.
Looking ahead 12–18 months, the key driver will be RBA interest rate movements. DTI is highly sensitive to rate cuts: every 1% reduction increases DTI by roughly 0.5×.

If the cash rate were reduced by a full percentage point, investor DTIs could approach the 6× threshold. However, given current inflation conditions and the still-tight labour market, such a substantial rate cut appears unlikely in the near term.

What kind of borrowers are likely to feel the impact first: investors, first-home buyers, high-geared buyers, or others?

1) Investors
Investors generally have higher DTIs due to the after-tax benefits of negative gearing.
When a large portion of a borrower’s debt is tax-deductible “good debt,” their servicing DTI naturally rises.
Under today’s interest rate environment, an investor with an unencumbered owner-occupied home and 100% investment debt can already approach (or reach) a 6× DTI.
This group is most likely to be constrained first as ADIs approach the cap.

2) Self-employed borrowers

Self-employed clients often benefit from lower effective tax rates and flexible income structures.
Income derived from company retained profits or distributions can lift assessable servicing income, and therefore DTI.
Since ADIs already apply more conservative treatment to self-employed income, the DTI cap adds further pressure.

3) Borrowers with higher proportions of tax-free income

Tax-free or concessionally taxed income components can elevate DTI because they enter servicing calculators without tax deductions.

Examples include:

  • Salary packaging
  • Government benefits or grants
  • Child support
  • Tax-free allowances
  • Income from charities or religious institutions

These borrowers may see their DTI rise faster, leading to earlier impact under the cap.

Does the new cap meaningfully change overall borrowing power for most people, or does it simply reshape which borrowers are eligible?

For most borrowers, borrowing power remains unchanged. APRA did not alter serviceability buffers or assessment formulas. The change affects:

  • Lender behaviour, not the borrower’s calculation
  • Portfolio allocation, not the underlying borrowing power
  • Which banks can accept high-DTI borrowers, rather than the borrowing amounts themselves

In effect, the cap is a guardrail. Lenders can still approve high-DTI loans, but only up to a limited share of their portfolio.
The real impact is less about “how much can I borrow?” and more about “which lender will work for my scenario?

In a tightened DTI environment, what strategies should investors or home-buyers consider if they want to remain competitive? (e.g., saving larger deposit, joint applications, alternate lenders, portfolio structuring)

Smart borrowers can stay competitive by adjusting their approach:

  • Increase deposit or reduce non-essential liabilities
    Lower debt and higher equity help reduce DTI immediately.
  • Use joint/dual-income applications
    Combining incomes lowers the DTI ratio and can preserve borrowing capacity.
  • Explore non-bank or specialist lenders
    These lenders are not subject to the APRA cap and offer more flexibility for investors, trusts, SMSFs, and self-employed borrowers.
  • Strategic portfolio structuring
    Spreading exposure across lenders or sequencing purchases can keep each application within acceptable DTI limits.
    In tougher lending conditions, planning and structure become just as important as income and borrowing power.

Looking beyond credit rules, do these changes alter the broader supply and demand dynamics in housing? E.g. impact on prices, rental demand, affordability and investment appetite. 

While this is very much Propertybuyer’s area of expertise, I can share a few observations from my perspective:

  • Investor activity may moderate slightly, reducing upward pressure on certain price segments, particularly entry-level investment stock.
  • Rental markets remain tight, driven by population growth and limited supply, so rents are unlikely to soften.
  • Some improvement in affordability may occur for first-home buyers if investor competition eases at the margin.
  • Investment appetite remains strong long term, as property fundamentals, yield, capital growth, and tax efficiency, remain attractive, especially if rates drift lower over time.

APRA’s move is fundamentally about sustainable stability, not suppressing demand. It adds guardrails to prevent overheating but does not materially change Australia’s long-term housing outlook.

 

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