APRA DTI Rules 2026: How the New 6x Lending Limit Affects You

From 1 February 2026, APRA has activated debt-to-income (DTI) lending limits that change how Australian banks can approve home loans. Under the new rules, authorised deposit-taking institutions (ADIs) must cap the share of new mortgages issued to borrowers with a DTI ratio of 6 or higher at 20% of their total new lending.

If you are buying a home, refinancing, or building a property investment portfolio, these rules could directly affect your borrowing capacity. This guide breaks down what the DTI limit means in practice, how to calculate your own ratio, who is most affected, the exemptions that apply, and strategies to position yourself for approval.

What Is a Debt-to-Income Ratio?

Your debt-to-income (DTI) ratio measures your total debt against your gross annual income. It gives lenders a snapshot of how leveraged you are relative to your earnings. The calculation is simple:

DTI = Total Debt / Gross Annual Income

For example, if you earn $100,000 per year before tax and have total debts of $500,000 (home loan, car loan, credit cards), your DTI ratio is 5.0x. A DTI of 6x means you owe six times your annual income.

What Counts as "Debt"?

Lenders include all of the following when calculating your DTI:

Home loan balances. This includes the new loan you are applying for
Investment property loans. All outstanding balances across your portfolio
Car loans and personal loans
Credit card limits. The full limit counts, not just the balance owing
HECS-HELP debt
Buy now pay later. Some lenders include these facilities
Any other financial liabilities

What Counts as "Income"?

Income is your gross (before tax) annual income, which typically includes:

Base salary and wages
Regular overtime and bonuses (often shaded to 80%)
Rental income from investment properties (typically 80% of gross rent)
Self-employed income (usually the lower of the last two years)
Government payments (Family Tax Benefit, etc.)

How to Calculate Your DTI Ratio

The best way to understand DTI is to see it in action. Here are three real-world examples showing how DTI applies across different borrower profiles.

Example 1: First Home Buyer Couple

Item	Amount
Combined gross income	$160,000
Proposed home loan	$720,000
Car loan balance	$15,000
Credit card limit	$5,000
HECS-HELP debt	$20,000
Total debt	$760,000
DTI ratio	4.75x

Result: Well below the 6x threshold. This couple is completely unaffected by the new rules. Most first home buyers fall comfortably under the limit.

Example 2: Upgrader With Existing Mortgage

Item	Amount
Gross income (single borrower)	$130,000
New home loan requested	$850,000
Credit card limits	$10,000
Total debt	$860,000
DTI ratio	6.6x

Result: Above 6x. This borrower sits in the restricted pool. The bank can still approve this loan, but it counts toward their 20% high-DTI quota. Approval may depend on how much quota the lender has remaining for that quarter.

Example 3: Property Investor With Multiple Loans

Item	Amount
Combined household income	$200,000
Home loan (owner-occupied)	$650,000
Investment property 1 loan	$420,000
Investment property 2 loan	$380,000
Car loan + credit cards	$25,000
Total debt	$1,475,000
DTI ratio	7.4x

Result: Significantly above 6x. This investor will find borrowing harder at major banks. They may need to increase income, pay down debt, or consider alternative lender assessment approaches to qualify.

What Exactly Are the New APRA Rules?

Here is a clear summary of the regulations that took effect on 1 February 2026:

Rule	Detail
DTI threshold	6x gross annual income or higher
Lending cap	Maximum 20% of new mortgage lending can be at DTI of 6x+
Applies to	All authorised deposit-taking institutions (banks, credit unions, building societies)
Portfolio tracking	Owner-occupier and investor lending tracked separately
Monitoring	Quarterly compliance reporting to APRA
Serviceability buffer	Remains at 3% above the loan rate

APRA Chair John Lonsdale stated that the rules are designed to "mitigate financial stability risks at a system-level" and contain housing-related vulnerabilities before they become systemic problems.

Key Exemptions

Not all lending counts toward the 20% cap. APRA has specifically exempted three categories of loans from the DTI limit:

New dwelling construction loans. Loans for the purchase or construction of brand-new homes are excluded to avoid constraining housing supply
Owner-occupier bridging loans. Temporary bridging finance for homeowners selling one property and buying another is excluded to allow smooth transactions
Non-bank lenders. Lenders not regulated as ADIs (such as some specialist and non-conforming lenders) are not subject to the APRA cap

These exemptions are significant. If you are buying a new home or building, the DTI limit may not apply to your loan at all.

Who Is Most Affected?

APRA has confirmed that the rules are not currently binding at the aggregate level, meaning most borrowers will not notice any change. However, specific groups are more exposed than others.

Higher-Risk Borrowers

These borrower profiles are most likely to exceed the 6x DTI threshold:

Property investors with multiple loans. Accumulated debt across several properties pushes DTI well above 6x
Single-income borrowers in expensive markets. Particularly Sydney and Melbourne, where median house prices require high DTI ratios for average earners
Borrowers with large existing debts. Car loans, HECS-HELP, credit cards, and personal loans all add to total debt
Self-employed borrowers with lower declared income. Tax minimisation strategies can reduce assessable income, inflating the DTI ratio

Lower-Risk Borrowers

These borrower profiles typically sit comfortably below the threshold:

First home buyer couples. Combined incomes typically keep DTI below 6x. If you are a first home buyer, read our complete first home buyer guide
Refinancers staying at the same loan amount. No new debt is added. See our refinancing case study for a real example
Borrowers purchasing new-build properties. Exempted from the cap entirely

How Australia Compares Internationally

Australia is not the first country to implement DTI limits. Several countries already have similar rules in place, though most set the bar considerably lower.

Country	DTI Limit	Cap
Australia	6x	20% of new lending
New Zealand	6x	20% of new lending
Ireland	3.5-4x	Hard cap with limited exceptions
Canada	4.5x	Stress test required
United Kingdom	4.5x	15% of new lending

Australia's 6x threshold is notably higher than comparable countries. This means the rules are relatively permissive by international standards, reflecting Australia's higher property prices relative to incomes.

What the Big Four Banks Are Doing

Each major bank has its own internal DTI policies that often go further than APRA's minimum requirements. Here is how they currently apply the rules:

Bank	Internal DTI Policy
CBA	Monitors applications above DTI 4.5x; manual credit review required above 7x
ANZ	Will not approve home loans with DTI above 7.5x
Westpac	Increased scrutiny above DTI 6x; additional serviceability assessment
NAB	Enhanced credit assessment for applications above DTI 6x

This means borrowers with high DTI ratios may face different outcomes depending on which lender they approach, and at what point in the quarter they apply. A broker who works across 30+ lenders can identify which institutions still have DTI quota available.

7 Strategies to Lower Your DTI Ratio

If your DTI is close to or above 6x, there are practical strategies you can use to improve your position before applying for a loan.

1. Close Unused Credit Cards

Lenders count the full credit limit, not just your current balance. A $15,000 credit card you never use still adds $15,000 to your total debt. Close unused cards and reduce limits on cards you keep. This alone can immediately lower your DTI.

2. Pay Down Small Debts First

Clearing a $10,000 car loan or a $5,000 personal loan removes those balances from your DTI calculation entirely. Target debts with the smallest balances for the biggest DTI improvement per dollar spent.

3. Increase Your Assessable Income

Any increase to your gross income directly reduces your DTI ratio. Options include:

Salary negotiation or promotion
Switching to a higher-paying role
Adding a co-borrower with additional income
Ensuring all regular income (overtime, bonuses, commissions) is documented over 12+ months

4. Reduce Your Loan Amount

A larger deposit means a smaller loan, which directly reduces your DTI. Even a modest increase in your deposit (say from 10% to 15%) can move your ratio below the 6x threshold. Our borrowing power calculator can help you model different scenarios.

5. Consider Non-Bank Lenders

Non-bank lenders (non-ADIs) are not subject to APRA's DTI cap. If your DTI exceeds 6x and you cannot reduce it, a non-bank lender may be a viable option. However, rates may be slightly higher. Speak to a broker to compare options across our full lender panel.

6. Buy a New Build

Loans for purchasing or constructing new dwellings are exempted from the DTI cap. If you are flexible on property type, a new build could bypass the restriction entirely while potentially qualifying for the First Home Guarantee scheme.

7. Split Your Applications Across Lenders

If you have both an owner-occupied and investment loan, consider holding them with different lenders. This can help manage each lender's individual DTI quota exposure. A mortgage broker can structure this optimally.

Impact on Property Investors

Investors are the group most directly affected by the DTI rules. There are several reasons why property investors need to pay close attention to these changes.

Cumulative debt. Each additional investment property adds to your total debt, pushing DTI higher with every purchase
Separate investor quota. APRA tracks the investor pool independently, so banks may hit their 20% investor cap before their owner-occupier cap
Rental income shading. Most lenders only count 80% of rental income, meaning your assessable income is lower than your actual receipts
Interest-only loans. While interest-only periods can help cash flow, they do not reduce the principal, so your DTI stays higher for longer

Investors building a portfolio should plan their DTI trajectory across multiple purchases. Getting professional advice early is critical. Once you exceed 6x, your next purchase becomes significantly harder at major banks.

What Should You Do Now?

Whether you are buying your first home, upgrading, or investing, here are the practical next steps to take:

Calculate your current DTI. Add all debts (including credit card limits and HECS) and divide by your gross income
Check your credit report. Ensure all debts listed are current and accurate. Close or correct any old facilities. See our credit score improvement guide
Reduce unnecessary debt. Close unused credit cards, pay down personal loans, and minimise buy now pay later facilities
Get pre-approved early. Pre-approval locks in your assessment before banks potentially tighten further
Talk to a broker. A broker who works across 30+ lenders can identify which institutions have DTI capacity remaining and which offer the best terms for your profile

How a Mortgage Broker Helps Navigate DTI Rules

The DTI limit creates an uneven playing field across lenders. At any given time, some banks will have used more of their 20% quota than others. A mortgage broker provides a critical advantage in this environment.

Lender selection. Identifying which banks currently have capacity for high-DTI loans
Application timing. Understanding quarterly reporting cycles and when quota resets
Debt structuring. Optimising your loan structure to minimise your effective DTI
Non-bank options. Accessing lenders outside APRA's jurisdiction when appropriate
Pre-approval strategy. Securing approval before a lender's quota fills up

At iSmart Finance Group, we work across 30+ lenders and can structure your application to give you the best chance of approval under the new rules. Book a free consultation to discuss your specific situation.

Frequently Asked Questions

What is a good DTI ratio for a home loan?

A DTI ratio below 6x is considered acceptable under the new APRA rules. Most first home buyer couples sit between 3x and 5x, which is well within the limit. Single borrowers in expensive cities like Sydney may find it harder to stay below 6x. If your DTI is above 6x, you can still get approved, but the lender must count your loan against their 20% high-DTI quota.

Does APRA's DTI limit mean I cannot get a home loan above 6x?

No. The DTI limit does not ban loans above 6x. It requires banks to cap these loans at 20% of their total new lending. This means banks can still approve high-DTI loans, but there is a limited pool available each quarter. Timing your application and choosing the right lender becomes more important.

Are non-bank lenders affected by the DTI rules?

No. APRA's rules only apply to authorised deposit-taking institutions (ADIs), which include banks, credit unions, and building societies. Non-bank lenders are not subject to the DTI cap. If your DTI exceeds 6x and you cannot reduce it, a non-bank lender may be a viable alternative, though rates may be slightly higher.

Does my HECS-HELP debt count toward the DTI calculation?

Yes. HECS-HELP (now called HELP) debt is included in the total debt figure used to calculate your DTI ratio. For example, if you have a $40,000 HELP debt, it adds $40,000 to your total liabilities. Paying down your HELP debt before applying can improve your DTI ratio.

Are new-build homes exempt from the DTI limit?

Yes. Loans for purchasing or constructing new dwellings are specifically exempted from APRA's DTI cap. This exemption exists to avoid constraining new housing supply. If your DTI is above 6x and you are flexible on property type, a new-build purchase bypasses the restriction entirely.