---
title: "APRA Just Capped Lending at 6x Your Income. Last Time This Happened, Property Dropped 15%."
description: "APRA's new debt-to-income cap limits high-DTI loans to 20% of bank books. If you earn $100K, borrowing above $600K puts you in the danger zone. Mortgage lending could drop 10%."
author: Yan Zhu
date: 2023-07-13
category: Suburb Analysis
url: https://premiumrea.com.au/blog/apra-six-times-dti-lending-rules-property-impact
tags: ["APRA", "DTI ratio", "lending rules", "borrowing capacity", "property market", "interest rates", "mortgage"]
---

# APRA Just Capped Lending at 6x Your Income. Last Time This Happened, Property Dropped 15%.

*By Yan Zhu, Co-Founder & Chief Data Officer at PremiumRea — 2023-07-13*

> Pay attention to what is happening with Australian lending rules right now, because the last time a regulator tightened mortgage restrictions like this, we saw the biggest property price correction in thirty years. APRA is not playing around. And if you are a property investor with plans to borrow in the next twelve months, this affects you directly.

Last time a major regulatory body tightened mortgage lending rules in Australia, we saw the biggest property price correction in thirty years. Prices in Sydney dropped 14.9 percent peak-to-trough. Melbourne followed with a 10.7 percent decline. The correction wiped roughly $133 billion in household wealth [1].

Now APRA is back with new restrictions on debt-to-income ratios. And while the headlines are focused on the technical details, the practical impact is straightforward: fewer people will qualify for mortgages, borrowing amounts will shrink, and the pool of buyers in the market will contract.

This matters whether you own property or want to. Here is what is changing, who gets hit, and what it means for anyone buying or refinancing in the next twelve months.

## What APRA actually changed

APRA — the Australian Prudential Regulation Authority — is the body that sets the rules every bank must follow when approving mortgages. They are not a bank themselves. They are the regulator that tells banks what they can and cannot do [2].

The new rule targets something called high-DTI loans. DTI stands for debt-to-income ratio. If your total debt exceeds six times your gross annual income, you are classified as a high-DTI borrower.

Put simply: if you earn $100,000 per year and your total mortgage debt (across all properties) exceeds $600,000, you are in the danger zone.

APRA is now mandating that high-DTI loans cannot constitute more than 20 percent of any bank's total lending book. This means banks must actively limit the number of borrowers they approve at these levels [3].

For individual borrowers, the practical effect is that banks will either reject applications that push above 6x DTI, or they will require larger deposits, higher income evidence, or both.

## The historical parallel (and why it spooked me)

In 2017, APRA introduced macroprudential controls that capped interest-only lending at 30 percent of new residential mortgage lending and required banks to limit growth in investor lending to 10 percent per year.

The result was swift and painful. Banks tightened lending criteria overnight. Borrowers who would have been approved on Monday were rejected on Tuesday. The pool of qualified buyers shrank dramatically, particularly for investment properties. And prices — particularly in Sydney and Melbourne — corrected by 10-15 percent over the following 18 months [4].

The 2017 intervention was APRA responding to a market they believed was overheating. The current intervention has a different trigger — they are concerned about systemic risk from borrowers who are stretched too thin — but the mechanism is identical: restrict lending, reduce the buyer pool, apply downward pressure on prices.

What is different this time is the starting point. In 2021, only about 6 percent of new mortgages were classified as high-DTI. Back in 2017, the proportion was around 25 percent. So the new 20 percent cap is not yet binding — it is a pre-emptive measure designed to prevent a future crisis rather than address a current one [5].

That distinction matters. It means the immediate impact may be modest. But if interest rates drop and borrowing surges (which is exactly what happens when rates fall), the cap becomes a hard ceiling that will genuinely constrain lending.

## Who gets hit hardest

There are two groups most affected by the 6x DTI cap.

First: investors with multiple properties. If you earn $150,000 and already have $700,000 in mortgage debt across two investment properties, your DTI is already 4.7x. Adding a third property at $600,000 (with an 80 percent LVR mortgage of $480,000) pushes your total debt to $1,180,000 — a DTI of 7.9x. You are well above the cap [6].

Banks will either decline the application outright or require you to demonstrate significantly higher income or a larger deposit. The days of stretching into your fifth or sixth property on a single income are numbered.

Second: first-home buyers in expensive markets. A couple earning a combined $180,000 has a 6x DTI limit of $1,080,000. In any suburb of Melbourne where the median house price exceeds $1.1 million, they are mathematically excluded — regardless of their savings, their spending habits, or their creditworthiness.

This is APRA's intended effect. They want to reduce the proportion of borrowers who are extremely stretched. But the collateral damage is that it locks out buyers who could afford the repayments but exceed the ratio threshold.

## What this means for property prices

APRA's own modelling estimates that mortgage lending could drop by up to 10 percent in the short term as banks adjust to the new constraints. Ten percent is a significant number — it represents billions of dollars of lending capacity removed from the market [7].

Fewer qualified buyers means less competition for properties. Less competition generally means softer prices. The suburbs most exposed are those dominated by stretched investors and first-home buyers at the top of their borrowing capacity — typically newer outer suburbs with high concentrations of recent mortgage originations.

Established inner and middle-ring suburbs with higher proportions of outright owners and upgraders are likely less affected. These buyers tend to have lower DTI ratios because they are selling an existing property and bringing significant equity to the purchase.

But here is the counterbalancing factor that most commentary misses: Australia has a genuine housing shortage. The National Housing Finance and Investment Corporation estimated a shortfall of 106,000 dwellings as of 2020, growing annually [8]. Supply constraints support prices even as demand-side lending restrictions reduce buyer numbers.

The net effect is likely a market that slows rather than crashes. Price growth of 2-4 percent rather than 10-15 percent. Transaction volumes declining as buyers either wait or adjust their targets downward.

For investors, the practical response is clear: focus on properties that generate strong rental income relative to purchase price. Positive cash flow reduces your reliance on borrowing capacity for the next purchase and insulates you against a market where lending is tighter.

## What smart investors should do right now

First: know your DTI. Add up every dollar of mortgage debt across every property you own. Divide by your gross annual income. If you are above 5x, your next application is going to face scrutiny. If you are above 6x, you may need to restructure before you can borrow again [9].

Second: maximise assessable income. Banks recognise approximately 75 percent of rental income when calculating serviceability. A property generating $850 per week adds roughly $33,000 of assessable income. Two properties at that level add $66,000 — enough to meaningfully shift your DTI ratio downward.

This is where high-yield investment strategies pay off beyond just cash flow. The rent is not only covering your mortgage — it is expanding your capacity to borrow for the next purchase. Properties in Melbourne's southeast generating 6-7 percent yield are effectively DTI reducers [10].

Third: accelerate any planned purchases. If you are currently at 5-5.5x DTI and planning to buy in the next twelve months, consider moving sooner. The lending environment is tighter than it was six months ago and will likely tighten further as banks implement APRA's requirements.

Fourth: build cash reserves. In a tighter lending environment, larger deposits give you negotiating power with banks and access to better interest rates. Every dollar of deposit reduces the mortgage component and improves your DTI.

The macro trend is clear: the era of unlimited leverage in Australian property is over. APRA has signalled that it will use DTI caps as a permanent tool, adjusting the threshold as needed to manage systemic risk. Investors who adapt their strategies to this reality — buying properties that reduce rather than stretch their DTI — will continue to build portfolios. Those who rely on maximum leverage will find doors closing [11].

## References

1. [CoreLogic, 'Australian Property Market Downturn 2017-2019'. Sydney -14.9%, Melbourne -10.7% peak-to-trough.](https://www.corelogic.com.au/)
2. [APRA, 'About APRA — our role and responsibilities'. Prudential regulation of banks, insurers, and superannuation funds.](https://www.apra.gov.au/about-apra)
3. [APRA, 'Strengthening residential mortgage lending standards'. High-DTI loans (>6x income) capped at 20% of new lending.](https://www.apra.gov.au/)
4. [Reserve Bank of Australia, 'Financial Stability Review', April 2019. Analysis of 2017 macroprudential controls and housing market response.](https://www.rba.gov.au/)
5. [APRA Quarterly ADI Property Exposure Statistics, Q3 2020. High-DTI loans at ~6% of new originations, down from ~25% in 2017.](https://www.apra.gov.au/)
6. [PremiumRea borrowing capacity modelling. $150K income, two properties totalling $700K debt = 4.7x DTI. Third property at $600K pushes to 7.9x.](#)
7. [APRA internal modelling estimate. Mortgage lending reduction of up to 10% in the short term following DTI cap implementation.](https://www.apra.gov.au/)
8. [National Housing Finance and Investment Corporation (NHFIC), 'State of the Nation's Housing', 2020. Estimated shortfall of 106,000 dwellings.](https://www.nhfic.gov.au/)
9. [Australian Banking Association, 'Home Lending Fact Sheet', 2020. DTI calculation methodology for multiple-property borrowers.](https://www.ausbanking.org.au/)
10. [PremiumRea portfolio data. Melbourne SE properties at 6-7% yield add ~$33K assessable income per property (at 75% bank recognition of $850/week rent).](#)
11. [Grattan Institute, 'Housing affordability: re-imagining the Australian dream', 2018. Long-term structural analysis of lending and housing prices.](https://grattan.edu.au/)

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Source: https://premiumrea.com.au/blog/apra-six-times-dti-lending-rules-property-impact
Publisher: PremiumRea (Optima Real Estate) — Melbourne buyers agent