July 3, 2026

OCR Vs Mortgage Rates: Why Fixed Rates Do Not Always Follow The Official Cash Rate

A lot of borrowers assume mortgage rates should move in lockstep with the OCR. So when the Official Cash Rate sits still, or falls, people expect fixed home loan rates to drop as well. When that does not happen, it feels like the banks are ignoring the Reserve Bank.

The reality is a bit more complicated. In New Zealand, the OCR matters, but it is only one part of the pricing story. Fixed mortgage rates are influenced much more heavily by wholesale market pricing, especially swap rates, which are driven by what markets think interest rates will do in the future, not just where the OCR sits today. Floating rates are influenced more directly by the OCR and short-term funding costs, while fixed mortgage rates are shaped by longer-term wholesale rates and market expectations.

That is the key message many borrowers are missing in 2026.

Where The OCR Sits Right Now

The OCR has been at 2.25% since the Reserve Bank cut it on 26 November 2025. Since then, the OCR has been held steady, including at the May 2026 review.

What has changed is the tone around what may happen next. In May, the Reserve Bank held the OCR at 2.25% on a split vote, with three committee members favouring a hike. The bank signalled future hikes were likely to come sooner and be larger than previously expected, and markets adjusted by pushing swap rates higher.

So if borrowers are wondering why fixed rates have not kept falling even though the OCR is well below its 5.50% peak, that is the answer: markets are already looking ahead.

Why Floating Rates And Fixed Rates Behave Differently

The OCR has the strongest influence on very short-term interest rates. That is why floating mortgage rates and short-term bank funding tend to move more directly with OCR changes.

Fixed rates are different. A one-year, two-year, or three-year mortgage is priced off what wholesale markets expect funding to cost over that term. In New Zealand, that usually means swap rates play a major role. Changes in the OCR flow through the economy partly via wholesale interest rates, but banks also price lending off the cost of borrowing money for different periods and the outlook for future rates.

That is why borrowers can see a strange-looking situation:

• the OCR is unchanged
• floating rates are fairly stable
• fixed rates stop falling, or even edge up

That is not irrational. It usually means the market thinks the next move in rates is more likely to be up than down.

So What Exactly Are Swap Rates?

A swap rate is a wholesale interest rate used by financial markets to price money over a set period. You do not borrow at a swap rate as a homeowner, but banks use swap markets as part of their own funding and hedging process when they offer fixed-rate mortgages.

The easiest way to think about it is this:

• OCR reflects where official short-term monetary policy sits today
• Swap rates reflect where markets think rates will average over a future period

If markets think the OCR may rise later in the year, swap rates can move higher straight away, even though the OCR has not changed yet.

That wholesale move can then feed into fixed mortgage pricing.

Why Borrowers Feel Confused Right Now

The confusion in 2026 makes sense. Borrowers have watched the OCR fall from its peak, and many expected fixed rates to keep dropping with it. But the market is now focused less on the cuts that already happened and more on the possibility that the easing cycle is over.

Back in December 2025, Governor Anna Breman pushed back against expectations of rapid hikes and said the OCR was likely to stay low through 2026, although she acknowledged the possibility of a move later in the year depending on the data. By February 2026, The Reserve Bank had already brought forward its projected first hike to around year-end. By May, the tone had become hawkish again.

So when people ask why fixed rates are not following the OCR lower, the real answer is that fixed rates are following market expectations, and those expectations have shifted.

What This Means If You Are Refixing

This matters most when a fixed term is coming up for renewal. A borrower looking only at the OCR could assume waiting will bring better fixed rates. A borrower watching swap rates might reach a different conclusion.

That does not mean everyone should rush out and fix immediately. It does mean the decision should be based on:

• how long you want certainty for
• whether you need flexibility for lump-sum repayments
• whether a split structure would reduce timing risk
• whether your current lender is still competitive

This is exactly where a proper mortgage review becomes useful. If your term is expiring, it is worth comparing the lender’s rollover offer with the broader market and reviewing whether your current home loan structure still fits what you need over the next 12 to 24 months. Capital Advice’s mortgage review is specifically aimed at borrowers about to re-fix, those wanting to release equity, or those unsure what they should be doing with their current lending.

The Practical Takeaway

The OCR still matters. It shapes the base level of short-term interest rates and heavily influences floating mortgage pricing. But fixed rates are not set by the OCR alone. They are influenced by swap rates, wholesale funding costs, bank margins, and what markets expect the Reserve Bank to do next.

That is why a headline like “OCR unchanged at 2.25%” does not automatically mean one-year and two-year mortgage rates will fall. In 2026, the market has increasingly been pricing the next move as a possible hike, and fixed-rate pricing has been reflecting that shift.

Where To From Here

If you are trying to work out whether to fix, float, split, or wait, the most useful thing is to stop thinking about the OCR in isolation. The better question is what the wholesale market is saying, what your lender is offering, and what structure suits your own plans over the next year or two.

That is where a detailed mortgage review or home loan advice can save you from making a rate decision based on the wrong signal. If your fixed term is coming up soon, or you want a second view before accepting the bank’s renewal offer, you can also contact us and we can talk through your options properly.

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