The 17% Myth: Why Today's Borrowers Are Squeezed Harder Than in 1989

Every Australian under 45 has heard the line, usually delivered across a barbecue: "You think you've got it tough? We paid 17 per cent interest." It ends arguments because nobody's ever had the data to answer it. Now they do — and it turns out the comeback was hiding in plain sight in 40 years of ABS records.

New KPMG analysis released this month shows Australian households are carrying one of the heaviest interest burdens on record — heavier, by the honest measure, than in 1989 when the cash rate famously hit 17.5 per cent. If you've been feeling stretched while being told rates are "historically moderate", this is the number that says you're not imagining it.

What 40 years of data actually shows

KPMG examined ABS records of what households actually pay in interest — on home loans, personal loans and credit cards — as a share of household income, going back four decades. The results rewrite the family folklore:

• In the March quarter of 2026, households paid $33.6 billion in interest — the fourth-highest quarterly figure ever recorded.
• That equalled 5.4 per cent of household income, up from 5.2 per cent the quarter before.
• At the legendary 1989–90 peak — cash rate 17.5 per cent — the same measure topped out at 5.7 per cent.
• The modern peak was 5.9 per cent in December 2023, and the burden averaged 5.8 per cent from September 2023 to March 2025 — a sustained stretch above the 1989 spike.

Read that again: the past two years have been tougher on household budgets than the era your parents still talk about — at less than a third of the interest rate.

How can 6 per cent hurt more than 17 per cent?

Because percentages don't pay the bank — dollars do. A 17 per cent rate on a $71,000 loan generates a smaller interest bill, relative to income, than a moderate rate on $600,000. House prices, and therefore loan sizes, have grown far faster than wages for three decades. The result is a structural shift: every quarter-point move by the RBA now lands with far more force per household than it did in any previous generation.

This is also why comparing eras by the headline rate alone — the favourite move in every generational argument — is genuinely misleading. The rate tells you what the money costs. The burden tells you what it does to your life.

The generation nobody mentions

Here's the twist in KPMG's data that surprised even the economists: the toughest conditions in the entire 40-year record belonged to neither the boomers of 1989 nor today's borrowers. They belonged to Gen X.

In June 2008, on the eve of the GFC, interest payments hit 7.9 per cent of household income — the all-time record — with the cash rate at just 7.25 per cent. And for almost a decade, from September 2005 to March 2013, the burden averaged 6.6 per cent. Gen X bought at the top of the early-2000s boom, carried it through the GFC, and — as the SBS coverage of this data wryly noted — never turned it into a barbecue talking point.

Why the squeeze is building again in 2026

The burden fell back through 2025 as rates were cut — then this year's three cash rate increases reversed the relief. The measure has climbed from 5.2 to 5.4 per cent in a single quarter, and KPMG notes it is positioned to keep rising as this year's increases flow through to repayments. Victorian households are carrying the heaviest load of any state.

With the RBA's next decision due on 11 August and the major banks split on whether another increase is coming, the structural reality is worth absorbing: you are more exposed to each RBA move than any borrower before you. That's not a reason to panic — it's a reason to manage the thing you actually control.

The strategist's view: manage the loan, not the folklore

You can't control the cash rate, the size of Sydney house prices, or your relatives' memories of 1989. Here's what you can control:

• Know your own burden. Work out what percentage of your household income goes to interest — not repayments, interest. If it's well above the national 5.4 per cent, you're carrying more than the average and the case for acting is stronger. Our mortgage calculator splits repayments into principal and interest so you can see the real number.
• Audit your loyalty. The gap between what existing customers pay and what lenders offer new borrowers is the cheapest burden reduction available — it requires no extra income and no RBA cut, just a conversation or a refinance.
• Make your savings work against the loan. An offset account reduces the interest portion of every single repayment — in a high-burden era, idle savings in a separate account is money working for the bank instead of you.
• Stress-test before you stretch. If you're borrowing now, remember the lesson in the data: the burden bites through loan size, not just rate. Check what a bigger loan really does to your position with our borrowing power estimator before you bid to your ceiling.