Home Loan Rates: Why They're Not Rising Fast Enough (2026)

The Mortgage Rate Mirage: Why Borrowers Should Brace for More Pain

If you’ve been keeping an eye on home loan rates, you might be forgiven for thinking the worst is over. After all, the Reserve Bank’s official cash rate (OCR) is expected to hold steady this week, and two-year fixed rates have only nudged up from 4.5% to around 5.2%. But here’s the kicker: those numbers are deceiving. Personally, I think what’s happening beneath the surface is far more alarming than the headlines suggest.

The Gap Between Wholesale and Retail Rates

One thing that immediately stands out is the disconnect between wholesale rates and what borrowers are actually paying. Since early March, the two-year swap rate—a key indicator of wholesale borrowing costs—has surged by about 70 basis points. Yet, advertised home loan rates have barely budged, rising by just 20 basis points. This raises a deeper question: Why aren’t banks passing on these costs to borrowers?

From my perspective, banks are absorbing the hit for now, but history tells us this won’t last. As Koura Wealth’s Rupert Carlyon pointed out, New Zealand banks don’t tolerate shrinking margins for long. What this really suggests is that borrowers are in for some hefty rate increases, even if the OCR remains unchanged. It’s a classic case of delayed pain, and I fear many homeowners aren’t prepared for it.

The Market’s Overreaction (or Is It?)

What makes this particularly fascinating is the market’s behavior. Global rates spiked recently, and local swap rates followed suit, with some economists calling for OCR hikes as early as July. But here’s the twist: the market seems to be pricing in a far more aggressive scenario than most experts predict. Kiwibank’s Jarrod Kerr noted that the market is flirting with a cash rate of 3.25% by year-end—a level no economist is seriously forecasting.

In my opinion, this overreaction could be a self-fulfilling prophecy. If banks and investors believe rates will soar, they’ll act accordingly, pushing retail rates higher regardless of what the Reserve Bank does. It’s a psychological game, and borrowers are the pawns.

The Borrower’s Dilemma: Fix or Float?

A detail that I find especially interesting is the shift in borrower behavior. More people are opting for two- or three-year fixed terms, a clear sign that they’re trying to lock in rates before they climb higher. On the surface, this seems smart. But what many people don’t realize is that the entire mortgage rate curve has shifted upward. Even if you fix now, you’re still paying more than you would have six months ago.

This raises another question: Are borrowers better off fixing for longer, or should they take their chances with floating rates? Personally, I think it’s a no-win situation. Fixed rates might offer stability, but they’re already priced for higher OCR hikes. Floating rates, on the other hand, could spike if the Reserve Bank surprises us. It’s a classic rock-and-a-hard-place scenario.

The Broader Implications

If you take a step back and think about it, this isn’t just about mortgage rates. It’s a symptom of a larger economic trend. Inflation, global uncertainty, and skittish bond markets are all playing their part. What this really suggests is that we’re in a period of prolonged financial volatility—and borrowers are on the front lines.

From my perspective, the real risk isn’t just higher rates; it’s the psychological toll on households. When people see their monthly payments rise, they cut back on spending, which could slow the economy further. It’s a vicious cycle, and one that policymakers seem reluctant to address head-on.

Final Thoughts

In my opinion, the current calm in home loan rates is a mirage. The forces driving wholesale costs upward are too strong to ignore, and banks won’t absorb the pain forever. Borrowers need to brace for more increases, even if the OCR holds steady.

What’s most concerning, though, is the lack of clarity. Are we in for a gradual uptrend, or will rates spike unexpectedly? No one knows for sure, and that uncertainty is the real enemy. If there’s one takeaway, it’s this: don’t be lulled into complacency by today’s rates. The real storm may still be on the horizon.

Home Loan Rates: Why They're Not Rising Fast Enough (2026)

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