Mortgage Interest Burden Now Exceeds the 1989 High-Rate Era — Why Refinancing and Debt Consolidation Are Back on the Agenda

New analysis reported by The Adviser has revealed a striking milestone: Australian households are now devoting a larger slice of their income to mortgage interest than they did during the notorious 17 per cent rate era of the late 1980s. Despite the RBA holding the cash rate steady at 4.35% (effective 17 June 2026), the sheer size of today's loans has pushed the real repayment burden past its 1989 high.

Why a 4.35% rate hurts more than 17% did

The headline rate is far lower today, but the maths of household budgets tells a different story. In 1989, average loan balances were a fraction of today's, so a high percentage rate still applied to a relatively small principal. Today, borrowers carry much larger mortgages relative to income — the product of decades of property price growth outpacing wages. The result: interest as a share of disposable income has quietly climbed to a record.

With inflation still stuck at 4.0% (ABS, May 2026) and the RBA signalling that the next move is "far from clear," borrowers should not bank on near-term relief.

What this means for borrowers

When repayment pressure builds, the instinct is to wait for rate cuts. But there are structural levers borrowers can pull now:

• Refinancing — Households sitting on record equity (even as prices cool) may be able to restructure to a more competitive product or extend terms to ease monthly cash flow.
• Debt consolidation — Rolling high-interest personal debt, car loans and credit cards into a single secured facility can materially reduce the total interest bill.
• Reviewing loan structure — Interest-only periods, offset accounts and split loans can be recalibrated to match a tighter budget.

The MPFG perspective

For self-employed borrowers and small business owners, the burden is often compounded by irregular cash flow. Traditional banks frequently decline refinance or consolidation applications from these clients on documentation grounds alone — not because the underlying position is weak.

As a non-bank lender, MPFG Capital assesses these applications on their merits, using Alt Doc pathways (BAS statements, accountant letters) where payslips don't exist. For borrowers feeling the record interest squeeze, a properly structured refinance or consolidation can be the difference between treading water and regaining control.

This article is general information only and does not constitute financial or credit advice. Consider your own circumstances and seek professional advice before acting.