OCR and My Mortgage

Written 9 April 2026, the day after the RBNZ announcement. Based on my own reading — not financial advice.

Yesterday the Reserve Bank held the OCR at 2.25%. No change. On the surface, that sounds boring.

But read a bit further into the statement and it's actually one of the more interesting announcements in a while — because the story has quietly shifted. We're no longer just talking about how far rates will fall. There's now a real conversation about whether they might start going back up.

I want to explain what the OCR actually is, why it matters to your mortgage, and what I think yesterday's announcement means in plain English.

First: what is the OCR?

OCR stands for Official Cash Rate — New Zealand's most important interest rate benchmark. It's the rate the RBNZ sets for overnight borrowing between banks. Think of it as the wholesale price of money — banks borrow from each other (and from the Reserve Bank) at around this rate, then lend to you at a margin on top.

That margin covers their costs, risk, and profit. So when the OCR drops, their cost base drops. But how much of that they pass on to you — and when — is entirely their call.

Worth knowing: the OCR is most directly linked to floating rates. Fixed mortgage rates are actually more influenced by Swap Rates — a separate wholesale market where banks hedge their future borrowing costs. Swap Rates are forward-looking, meaning they move based on what markets expect to happen, not what's been officially announced yet.

This creates a counterintuitive situation: if markets have been expecting an OCR hike for months, fixed mortgage rates may have already risen well before the RBNZ makes it official. Then on announcement day, the "hike" is already baked in — and fixed rates might not move at all, or could even edge down slightly as the uncertainty clears. The opposite happens too: if the RBNZ hikes by less than expected, fixed rates can actually fall on the day of a rate increase.

Floating rates don't work that way — they follow the OCR much more directly and quickly. If the OCR goes up, your floating rate almost certainly goes up with it.

Where things stood coming into yesterday

The RBNZ started cutting in mid-2024, back when the OCR was sitting at 5.5%. It's now at 2.25% — so a lot has come down. Mortgage rates followed, with a lag, and plenty of people have been refixing into something much more manageable than what they were on a year or two ago.

The assumption for most of 2025 was: more cuts are coming, fix short, catch a lower rate on the way down. That playbook made sense for a while.

What changed yesterday

The RBNZ held at 2.25% — but the language around it was notably more cautious. Inflation for the March quarter is expected to come in around 3%, and the forecast for June is 4.2%. That's not a small number. The committee said they're willing to tolerate some near-term inflation as long as expectations stay anchored — but they also warned that any sign of "second-round" effects (basically: inflation feeding into wages, which then feeds back into prices) would require "decisive and timely" OCR increases.

On top of that: US tariffs, Middle East conflict driving up fuel prices, businesses trying to recover their margins. The global picture is adding inflationary pressure, not removing it.

Financial markets have already priced in rate increases to 2.75% by the end of 2026. Some economists are forecasting hikes in September and December. That's a pretty different story from where we were six months ago.

What this actually means for your mortgage

If you're mid-term on a fixed loan, nothing changes today. Your rate is your rate until you refix.

But if you're coming up on a refix in the next few months, this announcement matters — because the "fix short and catch a lower rate" logic is looking shakier than it did. If the OCR does start moving up later this year, fixing short now could mean refixing into a higher rate next time around.

None of this is certain. The RBNZ themselves seem genuinely uncertain — the decision to hold rather than cut or hike reflects how much the situation is in flux right now. Cameron Bagrie pointed out that businesses will be trying to rebuild their margins, which could push inflation higher than historical norms. ASB's Mark Smith noted a "hawkish tinge" to the statement.

My take: this feels like a genuine turning point. The cutting cycle that defined the last 18 months looks like it's done. Whether what comes next is "hold for a while" or "actually start hiking again" — that's the question I'd be sitting with if I had a refix coming up soon.