Australians Are Already Pulling Back — So Why Are Three Banks Still Tipping a Tuesday Rate Hike?

Something unusual happened this week. Commonwealth Bank released data showing Australian household spending fell in February for the first time in 17 months — clear evidence that higher interest rates are finally biting. Then, within 24 hours, CBA's economics team updated their RBA forecast and called a rate hike for Tuesday anyway. NAB and Westpac did the same. Three of the big four banks now expect the cash rate to rise to 4.10% on March 17 — four days from now — and then rise again in May. ANZ is the only major bank still forecasting a hold on Tuesday. Borrowers are stuck between two contradictory signals: the economy is slowing, but the banks think the RBA will keep squeezing.

What CBA's Spending Data Actually Shows

The CommBank Household Spending Insights Index — which tracks real-time spending across millions of CBA accounts — fell 0.5% in February, the first monthly decline since September 2024. That's 17 consecutive months of growth, abruptly ended.

CBA Head of Australian Economics Belinda Allen put it plainly: "A decline after 17 months of growth is notable and suggests households may be starting to pull back." The data covers spending across half of the 12 categories measured — meaning this wasn't a blip in one sector. It was broad-based.

For mortgage holders, this data tells a story you already know from your own budget. The February rate hike — the first since November 2023 — landed in mid-February, and the spending numbers suggest it landed hard. Households are adjusting. They're spending less on discretionary items. Education costs are falling at the fastest rate of any category — parents are pulling kids out of activities, cutting tutoring, reducing extracurriculars.

So Why Are Three Banks Still Calling a Hike?

Here's the paradox. CBA's own economists published spending data showing households are already pulling back — and then updated their RBA forecast to say the board will hike anyway. NAB and Westpac did the same. All three changed their calls within 24 hours of each other.

The reason the banks are pushing ahead despite the spending data comes down to one word: inflation. The RBA's mandate is to keep inflation between 2 and 3%. Right now, trimmed mean inflation — the RBA's preferred measure — is sitting at around 3.7% for the year to June 2026, revised upward from the RBA's own earlier forecast of 3.2%. That's not close to target. And the banks' economists argue that one month of soft spending data doesn't change the inflation picture fast enough to justify a pause.

Westpac and NAB have gone further than CBA — both are now flagging the possibility of three consecutive hikes, which would push the cash rate to 4.35% or beyond. That would be a level not seen since 2012.

The Case for a Hold — ANZ's Dissenting View

ANZ is alone among the big four in still calling a March hold, and their reasoning deserves attention. The February spending data is exactly the kind of evidence that argues for giving existing rate rises time to work. Policy operates with a lag — the February hike only began hitting mortgage accounts a few weeks ago. Hiking again before that effect has fully flowed through risks overshooting: pushing spending down harder and faster than needed, and potentially tipping the economy into a sharper slowdown than the RBA intends.

ANZ's view is that the May meeting — when the RBA will have the full Q1 2026 CPI data in hand — is the right moment to act if inflation hasn't improved. March is too soon to know whether the February hike worked.

The bond market is pricing somewhere between the two views: a March hike is more likely than not, but not a certainty. If the spending data surprises the RBA board — if they see the pullback as more significant than expected — a hold is still possible.

What a Tuesday Hike Would Cost You

If CBA, NAB and Westpac are right and the RBA hikes on Tuesday, the cash rate moves to 4.10%. Banks will pass it on within days. For variable rate borrowers, that means repayments go up again immediately — on top of February's increase.

And if Westpac and NAB are right about a third consecutive hike, the numbers get worse. A cash rate of 4.35% would represent a 0.75% increase from where rates sit today — adding $450/month to a $1 million loan compared to right now, on top of what borrowers are already paying.

What to Do Before Tuesday

Whether the hike comes Tuesday or in May, three of four banks now think it's coming — and the direction of travel is clear. Here is what you can do in the next four days:

• Check your current rate immediately. If you're on a rate that hasn't been reviewed in the past 12 months, you are almost certainly paying a loyalty premium of 0.5–1.0% above what's available to new customers. On a $600,000 loan that's $3,000–$6,000 per year — money you're handing the bank for no reason. A broker can check this in one call.
• Model your repayments at 4.35%. That's the worst-case scenario now on the table from two of the big four. Run your household budget at that number. If it works, you have breathing room. If it doesn't, you need a plan before the hikes land — not after.
• Consider a split loan. Fixing a portion of your loan — say 50–70% — protects that share of your repayments from further increases while keeping the rest variable for extra repayments and offset access. This is the middle-ground option that many borrowers in uncertain rate environments find most practical.
• Don't wait for Tuesday to act. If a rate hike would genuinely stress your budget, you have four days to start a conversation with a broker. Refinancing takes time — but getting the process started now means you're positioned ahead of the hike, not scrambling after it.

The Bottom Line

The spending data says Australians are already feeling the pinch. The bank forecasts say the RBA doesn't care — not yet, not enough. The truth is probably somewhere in between: the RBA will be watching the February spending numbers, but one month of soft data won't override persistent inflation that's been above target for years.

Three of four major banks now say Tuesday is live. ANZ says hold. The RBA announces at 2:30pm AEDT on Tuesday 17 March. Whatever they decide, the message from the data is the same: households are under pressure, and rates are going higher before they come down. Plan for that reality now.

Sources: CommBank Household Spending Insights Index (March 2026); CBA, NAB, Westpac, ANZ economist rate forecasts (11–12 March 2026); Bloomberg, "Three of Australia's Top Banks See RBA Hiking Key Rate in March" (11 March 2026); savings.com.au; MPA Magazine; The Adviser