RBA Rate Hikes 2026: How Much More You'll Pay on Your Mortgage

The Reserve Bank of Australia delivered a 25 basis point hike in February 2026 and followed up with another 25bp hike in March, pushing the official cash rate from 3.60% to 4.10%. This is the first time the RBA has delivered back-to-back increases since the aggressive tightening cycle of 2022-23.

The trigger was a hotter-than-expected December quarter CPI print — trimmed mean inflation came in at 3.7%, well above the RBA's 2-3% target band and higher than consensus forecasts of 3.4%. The February hike was widely expected after the inflation data. The March hike was not.

Here's the thing. Governor Bullock flagged in her post-decision statement that the Board considered holding but ultimately decided that waiting for more data posed a greater risk of inflation expectations becoming entrenched. Banks passed through both hikes in full within 10 business days. The average variable rate for owner-occupiers with principal-and-interest repayments now sits between 6.20% and 6.80%, depending on lender, loan-to-value ratio, and whether you've a package discount.

Investor rates are approximately 0.30-0.50 percentage points higher.

The combined 50 basis points of hikes since January 2026 have added the following to monthly principal-and-interest repayments on a 25-year loan term. At a $400,000 loan (variable rate moving from 5.70% to 6.20%): monthly repayments rose from $2,497 to $2,649, an increase of $152 per month or $1,824 per year.

At $500,000 (5.70% to 6.20%): up from $3,121 to $3,311, an increase of $190 per month or $2,280 per year. At $600,000 (5.70% to 6.20%): up from $3,745 to $3,974, an increase of $229 per month or $2,748 per year. At $750,000 (5.70% to 6.20%): up from $4,682 to $4,967, an increase of $285 per month or $3,420 per year.

At $1,000,000 (5.70% to 6.20%): up from $6,242 to $6,623, an increase of $381 per month or $4,572 per year. These figures assume a mid-range variable rate. Borrowers on higher rates (closer to 6.80%) are paying even more — at 6.80% on a $600K loan, monthly repayments are approximately $4,194, which is $449 more per month than the pre-hike 5.70% rate.

Let's break this down. Here's a side-by-side comparison of where mortgage repayments sat at the start of 2026 versus where they're now across the full range of common loan sizes, assuming a 25-year term and principal-and-interest repayments. $300,000 loan: was $1,871 per month at 5.70%, now $1,986 at 6.20%, difference of $115/month ($1,380/year). $400,000 loan: was $2,497, now $2,649, difference of $152/month ($1,824/year). $500,000 loan: was $3,121, now $3,311, difference of $190/month ($2,280/year). $600,000 loan: was $3,745, now $3,974, difference of $229/month ($2,748/year). $700,000 loan: was $4,370, now $4,636, difference of $266/month ($3,192/year). $800,000 loan: was $4,994, now $5,298, difference of $304/month ($3,648/year). $900,000 loan: was $5,618, now $5,961, difference of $343/month ($4,116/year). $1,000,000 loan: was $6,242, now $6,623, difference of $381/month ($4,572/year). Over a full year, the additional cost ranges from $1,380 for a $300K loan to $4,572 for a $1M loan.

For the average Australian mortgage of approximately $620,000, the annual increase is roughly $2,844.

To put the 2026 hikes in context, consider the full hiking cycle. The RBA cash rate was 0.10% in April 2022.

It's now 4.10% — a total increase of 400 basis points. On a $600,000 mortgage with 25 years remaining, monthly repayments at a variable rate tracking the cash rate have gone from approximately $2,333 (when the variable rate was around 2.30%) to approximately $3,974 (at a variable rate of 6.20%). That's an increase of $1,641 per month, or $19,692 per year.

Over the roughly 4 years of the hiking cycle, borrowers with a $600K loan have paid approximately $50,000 more in cumulative additional interest than they would have paid if rates had stayed at their 2022 lows. For a $1M loan, cumulative additional interest paid during the hiking cycle exceeds $80,000. This is money that has come directly out of household budgets — it's not paying down the loan faster; it's simply higher interest cost.

Quick reality check. The psychological and financial toll on households has been significant, and the 2026 hikes have added injury to an already painful situation. That's the key takeaway.

The two 2026 hikes have shifted the fixed-vs-variable calculus. Current best fixed rates (as of March 22, 2026): 1-year fixed ranges from 5.99% to 6.29%, 2-year fixed from 5.89% to 6.19%, and 3-year fixed from 5.69% to 5.99%.

These fixed rates sit below current variable rates because swap markets are pricing rate cuts from late 2027 onwards. Variable rates currently range from 6.20% to 6.80% depending on the lender. A borrower with a $600,000 loan who fixes at 5.99% for 2 years locks in repayments of approximately $3,874 per month.

If they stay variable at 6.50%, they pay approximately $4,070 per month — a difference of $196 per month or $4,704 over the 2-year fixed term. However, if the RBA cuts rates aggressively through 2027 (say 100bp of cuts), the variable borrower will benefit from those reductions while the fixed borrower remains locked in. The trade-off is certainty versus flexibility.

For borrowers who are already stretched by the 2026 hikes, the certainty of a fixed rate below current variable rates is worth serious consideration — especially the 2-year fix, which offers the best balance of rate saving and protection period.

Worth knowing: The next RBA Board meeting is scheduled for May 19-20, 2026. Interest rate futures currently price a roughly 35-40% chance of a third consecutive 25bp hike, which would take the cash rate to 4.35% — matching the peak reached in November 2023.

The key data points between now and the May meeting are the March quarter CPI (due late April) and the March labour market data (due mid-April). If trimmed mean inflation remains above 3.5% and the unemployment rate stays below 4.2%, the case for another hike is strong. If inflation moderates toward 3.0-3.3% and unemployment ticks up, the RBA will likely hold at 4.10% and wait for more data.

The RBA's own forecasts from February projected trimmed mean inflation returning to the 2-3% target band by late 2027, but those forecasts were made before the March hike and are likely to be revised. Most private-sector economists see the cash rate peaking at either 4.10% (current level) or 4.35% (one more hike), with rate cuts beginning in the second half of 2027. Only a handful of forecasters are predicting a peak above 4.35%.

Consider a household that purchased a median-priced Sydney house for $1.55 million in mid-2024, with a 20% deposit of $310,000 and a mortgage of $1.24 million. At the time of buy, their variable rate was approximately 6.00% and monthly repayments were $7,983 on a 30-year term.

After the two 2026 hikes, their variable rate has risen to approximately 6.50%. Monthly repayments are now $8,438 — an increase of $455 per month or $5,460 per year. If the RBA hikes again in May to 4.35% and the variable rate hits 6.75%, monthly repayments would rise to $8,672, taking the total increase since the start of 2026 to $689 per month or $8,268 per year.

Bottom line? This household needs a combined gross income of approximately $337,520 to stay under the 30% mortgage stress threshold at 6.50%. At the May 2026 median Sydney household income of around $140,000, their mortgage-to-income ratio is approximately 72% of gross income — well into severe mortgage stress territory. Of course, many Sydney borrowers purchased at lower price points or with larger deposits, but the numbers illustrate how the 2026 hikes have disproportionately affected recent buyers in expensive markets.

First, call your lender's retention team and ask for a rate discount. The spread between the best and worst variable rates among major lenders is approximately 0.60 percentage points — on a $600K loan, negotiating a 0.30% reduction saves $109 per month.

Second, review your offset account strategy. Every dollar sitting in offset reduces your interest-bearing principal — $50,000 in offset at 6.50% saves $3,250 per year. Consolidate savings, emergency funds, and even short-term savings into your offset.

Third, switch to fortnightly repayments if you're currently paying monthly. Paying half the monthly amount every two weeks results in 26 fortnightly payments (equivalent to 13 monthly payments) instead of 12, reducing your loan term by approximately 4-5 years and saving tens of thousands in interest. Fourth, refinance if your lender won't budge.

Cashback offers of $2,000-$4,000 remain common for loans above $250,000, and the rate saving can be substantial. Fifth, review all discretionary spending — the average Australian household spends $1,200-$1,800 per month on non-essential items.

So what does this actually mean? Even trimming $200 per month and directing it to your mortgage makes a meaningful difference. Sixth, if you've an investment property, review your rental yield — rents have risen 8-12% nationally over the past year, so you may be undercharging. Seventh, speak to a financial counsellor (free through the National Debt Helpline on 1800 007 007) if you're genuinely struggling — they can negotiate with your lender on your behalf and access hardship provisions you may not know about.