This year, home loan holders have put every spare dollar into their repayments, but making real headway on the debt has grown steadily tougher. That is the basic story behind the latest rate hike, and it raises a question the headline numbers cannot answer. How much cushion do households actually have left?
The tools are familiar. Extra repayments, offset accounts and redraw facilities all let a borrower cut interest costs without changing their loan. When rates rise, the instinct is to lean harder on all three. The catch is that each one draws on the same pool of spare cash, and that pool is finite.
Offset and redraw are savings, not income
An offset account is a transaction or savings account linked to a mortgage. Every dollar in it reduces the balance that interest is charged on. Redraw is different: it is extra repayment you have already made, which you can pull back out if needed.
Both feel like a safety net. But a borrower who uses the cash to cover a higher repayment is spending the buffer, not building it. Interest savings shrink as the balance falls, which makes the next rate rise bite a little harder.
Key numbers
- Offset and redraw balances are reported in aggregate by banks and by APRA-reported lending data.
- An average balance can rise even while a growing share of borrowers hold close to nothing.
- The RBA cash rate sits at 4.85% after five hikes, per our earlier coverage.
Why the aggregate can mislead
Here is the part most people miss. A large pool of savings is often held by a minority of borrowers, many of them older or further ahead on their loans. A few big balances lift the average. Meanwhile, newer buyers and those on tighter budgets may be running theirs down.
So a headline that says buffers remain healthy can be accurate and still hide a tail of households with no room left. That tail matters because it is where stress shows up first. Our guide to how the RBA, interest rates and repayments connect explains how a cash rate move reaches the monthly repayment.
Who runs short first
Recent buyers who borrowed near their limit, often with small deposits, usually have the least spare cash to start with. Borrowers rolling off low fixed rates face a delayed jolt on top of any variable-rate rise. Investors can feel a second squeeze if rents do not keep pace with higher interest costs.
If you are wondering who actually gains from higher rates, the answer is mostly outright owners with cash to lend. The same dynamic that rewards savers leaves thin-buffer borrowers carrying more of the adjustment.
From buffers to arrears
A household with no buffer has few options when costs rise. It can cut spending, extend the loan term, sell, or fall behind. Falling behind is how stress eventually reaches arrears data, which lags what is happening at the kitchen table by several months. Our piece on mortgage arrears and the funding market behind non-bank loans looks at where that pressure can build.
Two caveats apply. First, we do not have borrower-level data in this story, so we cannot say how large the no-buffer group is. Second, lenders have said many borrowers remain ahead on repayments. Both can be true at once. The risk is that the average is reassuring while the distribution is not.
What to check in your own numbers
If you hold a mortgage, a few questions are worth answering this month:
- How many months of repayments could your offset and redraw cover if income stopped?
- Has your balance fallen over the past year, and why?
- Would another 0.25 percentage point rise force you to dip into savings?
If the answers make you uneasy, talk to your lender about hardship options early, before a missed payment. Start here: check your offset and redraw balances against your last 12 months of repayments, and see whether the cushion is growing or shrinking.
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General info, not financial advice.
