Fixed or Floating? How to Decide in 2025

The rates are changing — here's how to stay one step ahead.

2 min readJason Bruce

It's one of the biggest mortgage questions in NZ right now: Should I fix, float, or split my loan in 2025?

The truth? There's no one-size-fits-all answer. But there is a way to choose what's right for you.

Jason Bruce explaining fixed and floating mortgage rates to clients

What's the Difference?

Understanding your rate options and their implications.

Fixed Rate

Lock in a rate for 6 months to 5 years. Safe, predictable payments.

Floating Rate

Rate moves with the market. Usually higher, but offers full flexibility.

Split Loan

Combine both — part fixed, part floating — for a balanced strategy.

Why It Matters in 2025

The current market context and what it means for your mortgage.

We're in a shifting interest rate cycle — and many Kiwis are rolling off ultra-low fixed rates.

You need a plan that:

  • Protects your cashflow
  • Keeps flexibility where needed
  • Lets you pivot if rates drop or your goals change

Use our calculator above to compare different rate scenarios and see how they affect your repayments.

Who Should Fix?

Is a fixed rate the right choice for your situation?

Consider fixing if:

  • You want budgeting certainty
  • You're risk-averse
  • You don't plan to restructure soon

Fixing is smart if you value peace of mind — even if the rate is slightly higher.

Who Should Float?

When floating rates might be the better option.

Floating might be right if:

  • You might sell or refinance soon
  • You're expecting rates to drop
  • You want full repayment flexibility

Great short-term option — but watch your repayments.

What About Splitting?

The benefits of a balanced approach with split loans.

Splitting can help you:

  • Hedge your bets
  • Keep part of your loan flexible
  • Still benefit from partial rate security

It's a popular strategy — especially for investors or those managing cashflow swings.

How Do You Decide?

Key questions to help you make the right choice.

Ask yourself:

  • What's my risk tolerance?
  • How stable is my income right now?
  • Am I likely to sell, restructure, or invest in the next 1–2 years?

Talk it through with an adviser — we can model out the options side by side.

Unsure What to Do With Your Rate?

Let's chat before you lock in your next move.

I'll help you compare options and find the right strategy for your situation.

Jason Bruce
Jason Bruce
Licensed Mortgage Adviser

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