Mortgage Stress Test: Can You Afford Another Rate Rise in May 2026?

Interest rate futures are pricing a roughly 40% probability of the RBA lifting the cash rate by another 25 basis points to 4.35% at its May 2026 meeting. If that happens, it would be three consecutive hikes totalling 75 basis points in four months — taking the cash rate back to the November 2023 peak and pushing variable mortgage rates toward 7%.

The March quarter CPI data, due in late April, will be the deciding factor. If trimmed mean inflation stays above 3.5%, the RBA has historically been willing to keep hiking regardless of the political backlash. Below is what your monthly principal-and-interest repayments look like across three scenarios, assuming a 25-year remaining term and that banks pass through the full rate change.

In plain English: These numbers show the variable rate you would pay, not the cash rate — variable rates typically sit 2.10% to 2.70% above the cash rate depending on your lender and product.

At the current cash rate of 4.10%, assume a mid-range variable rate of 6.50%. Monthly repayments: $400K loan = $2,713; $500K = $3,392; $600K = $4,070; $750K = $5,088; $1M = $6,784.

If the RBA hikes to 4.35% in May and your variable rate rises to 6.75%: $400K = $2,777 (+$64/month); $500K = $3,471 (+$79/month); $600K = $4,166 (+$96/month); $750K = $5,207 (+$119/month); $1M = $6,943 (+$159/month). If the RBA hikes twice more to 4.60% and your variable rate hits 7.00%: $400K = $2,843 (+$130/month vs today); $500K = $3,553 (+$161/month); $600K = $4,264 (+$194/month); $750K = $5,330 (+$242/month); $1M = $7,106 (+$322/month). The annual impact at 7.00% compared to today's 6.50%: $400K = $1,560 extra per year; $500K = $1,932; $600K = $2,328; $750K = $2,904; $1M = $3,864.

Add this on top of the $1,248 to $3,120 per year already added from the February and March hikes, and the total annual increase from the start of 2026 would be $2,808 to $6,984 depending on your loan size.

The standard definition of mortgage stress is spending more than 30% of your gross household income on mortgage repayments. Severe mortgage stress is spending more than 40%.

The short version: At a variable rate of 6.50% (current), here's the minimum gross household income you need to stay under the 30% threshold. $400K loan ($2,713/month): you need at least $108,520 gross annual income. $500K loan ($3,392/month): $135,680. $600K loan ($4,070/month): $162,800. $750K loan ($5,088/month): $203,520. $1M loan ($6,784/month): $271,360. If the rate rises to 6.75% (one more hike), those income thresholds increase by roughly $3,000 to $7,600 per year depending on loan size. The Roy Morgan research estimate is that approximately 1.6 million Australian mortgage holders are currently in mortgage stress as of early 2026, up from 1.4 million before the February hike.

The suburbs most affected are in outer-ring areas of Sydney, Melbourne, and Brisbane where household incomes are lower but property prices (and therefore loan sizes) have risen significantly in recent years. Pretty straightforward once you know.

Mortgage stress doesn't arrive overnight — it builds gradually. Here are the warning signs to watch for.

First, you're using credit cards or buy-now-pay-later to cover everyday expenses like groceries and fuel because your mortgage repayment is consuming too much of your take-home pay. Second, you've stopped or reduced extra repayments or offset contributions — money that used to go to getting ahead on your home loan is now going to just keeping up. Third, you've less than two months of mortgage repayments saved in an emergency buffer.

At $4,070/month on a $600K loan, that means less than $8,140 in accessible savings. Fourth, you're regularly transferring money from your offset account to your transaction account to cover daily expenses, eroding the interest-saving benefit. Fifth, you're declining social activities, cutting subscriptions, or making other lifestyle changes specifically because of housing costs.

Real talk — Sixth, you feel anxious about upcoming RBA decisions because you know another increase will materially affect your household budget. Seventh, you've considered or started taking on additional work (second job, gig work, overtime) specifically to meet mortgage repayments.

If three or more of these apply to you, it's time to take action before the situation deteriorates further.

Don't wait for the May decision to find out whether you can cope with another hike. Stress test your budget now using this method.

Step 1: Use our Mortgage Calculator to calculate your monthly repayment at your current rate, then at your current rate plus 0.25% and plus 0.50%. Write down all three figures. Step 2: List your total fixed monthly expenses — mortgage, insurance, utilities, transport, childcare, groceries, loan repayments, subscriptions.

Be honest and use actual spending from your bank statements, not estimates. Step 3: Subtract your fixed expenses from your household take-home pay. If the buffer at a rate 0.50% higher than today is less than $200 per month, you're at risk.

One thing people miss: Step 4: Identify expenses you can cut or reduce. Most households can find $200-$500 per month in discretionary spending when they genuinely audit their outgoings — unused subscriptions, eating out, delivery fees, impulse purchases.

Step 5: If even after cutting discretionary spending you can't absorb a 0.50% rate increase, you need to consider structural changes — refinancing, extending your loan term, switching to interest-only for a period, or accessing hardship provisions through your lender.

If you're already struggling, take these steps in order. First, call your lender's hardship team.

Every Australian bank is required to have a dedicated hardship team, and they can offer temporary relief including reduced repayments, interest-only periods (typically 6-12 months), or a repayment pause. This doesn't affect your credit score if you engage with them proactively. Second, refinance to a lower rate.

If your current variable rate is above 6.60%, there are lenders offering 6.20-6.40% for owner-occupier P&I loans with LVR under 80%. On a $600K loan, moving from 6.80% to 6.30% saves approximately $186 per month. Third, extend your loan term.

Heads up — If you've 20 years remaining, extending to 25 years reduces your $600K repayment at 6.50% from approximately $4,462 to $4,070 — a saving of $392 per month. You will pay more in total interest over the life of the loan, but the cash flow relief is immediate.

Fourth, consolidate high-interest debt. If you're carrying credit card debt at 20%+ alongside a mortgage, rolling it into your home loan at 6.50% dramatically reduces the interest cost and frees up cash flow. Fifth, seek free financial counselling through the National Debt Helpline (1800 007 007).

They provide independent, no-cost assistance and can negotiate with creditors on your behalf. Don't wait until you miss a repayment — lenders are far more accommodating when you engage before you fall behind.

The minimum buffer every mortgage holder should maintain is enough to cover three months of repayments at a rate 0.50% above the current variable rate. Here's what that looks like.

On a $400K loan at 7.00% (current rate + 0.50%), monthly repayment is $2,843. Three-month buffer: $8,529. On a $500K loan: $3,553/month, buffer $10,659.

This bit matters. On a $600K loan: $4,264/month, buffer $12,792. On a $750K loan: $5,330/month, buffer $15,990. On a $1M loan: $7,106/month, buffer $21,318.

Keep this buffer in your offset account where it simultaneously provides emergency protection and reduces your interest charges. If you don't have an offset account, keep it in the highest-yielding savings account you can find — the best accounts are paying up to 5.35-5.50% with conditions met, meaning your emergency buffer also earns meaningful interest.

Use our Budget Planner to map your income against expenses and identify how much you can redirect to building this buffer each month. Even saving $200 per week gets you to a $12,000 buffer in 15 months.