Will NZ mortgage rates drop in 2026?

Yes, with the OCR currently at 3.25% and further RBNZ cuts forecast for late 2026, retail interest rates are expected to fall. Fixed 1-year terms are sitting around 5.85% special rates, with wholesale swap rates trending down.

Should I fix for 1 year or 2 years in NZ today?

Most NZ borrowers are choosing 1-year fixed terms to avoid locking in for too long while rates are falling. This gives the flexibility to refix at a lower rate in 12 months, though 2-year rates offer slightly lower pricing today.

What is the current stress-test rate for NZ banks?

As of June 2026, major NZ banks are testing servicing capacity at a stress rate around 7.45%, down from peak levels of nearly 9.0%. A lower test rate expands your maximum borrowing power significantly.

How does the OCR affect my floating mortgage rate?

Floating mortgage rates respond directly to RBNZ Official Cash Rate changes. When the OCR is cut, floating rates typically drop by the same amount (25 or 50 basis points) within a few days.

DTI Cap — Case Study

Student Loan Plus Car Debt.
Approved Under the DTI Cap Anyway.

A young Wellington professional with a student loan and car debt worried her DTI ratio would block her. Finch structured her file to fit under the cap.

5.2x

Final DTI Ratio

Owner-Occupier Cap

$620K

Loan Approved

$14K

Debt Reduced First

19 days

To Pre-Approval

The Situation

The problem.

Amelia, a 27-year-old policy analyst in Wellington earning $105,000, had a $22,000 remaining student loan and a $28,000 car loan alongside a $9,000 credit card limit. When she started looking at a $620,000 first home, she'd read about the Reserve Bank's debt-to-income (DTI) restrictions and worried her existing debt load would push her over the 6x owner-occupier cap before she'd even applied.

A rough calculation using her total debt (including the new mortgage) against her income put her uncomfortably close to the cap once her existing car loan and credit card limit were factored in alongside the new $620,000 mortgage — at real risk of landing above 6x depending on how conservatively each lender counted her credit card limit.

Amelia wasn't sure whether to delay her purchase by a year to pay down debt first, or whether there was a way to structure things now.

The Finch Approach

How we solved it.

Full DTI recalculationWe calculated Amelia's exact debt-to-income ratio the way lenders actually do it — total debt including the new mortgage, divided by gross income — rather than the rough estimate she'd worked out herself, which had overstated her credit card contribution.

Targeted debt reduction before applyingWe recommended Amelia use $14,000 of her existing savings, originally earmarked for a slightly larger deposit, to pay down her car loan instead — reducing total debt in a way that moved her DTI ratio more than an equivalent reduction in mortgage size would have.

Credit card limit reductionAmelia reduced her $9,000 credit card limit to $2,000, since DTI calculations count the full limit rather than the balance — a change that cost her nothing day-to-day but meaningfully improved her ratio.

Lender selection with DTI headroomBecause the DTI restriction allows each bank a limited monthly quota of above-cap lending, we also confirmed which lender had exemption headroom available that month as a backup, even though Amelia's restructured file ultimately landed comfortably under the cap at 5.2x.

The Outcome

The result.

Amelia's pre-approval was issued in 19 days at the full $620,000 she needed, with a final DTI ratio of 5.2x — comfortably under the 6x owner-occupier cap, with no need to draw on any lender's exemption quota.

She purchased a 2-bedroom apartment in Kelburn for $610,000, fixed 2 years at 5.75%, and is continuing to pay down her remaining student loan and car debt ahead of schedule now that she's settled.

Amelia's feedback: "I was ready to put my search on hold for a year over the DTI rules. Finch showed me the actual math and a couple of small, practical changes that moved me from borderline to comfortably approved."

Useful NZ sources: the Reserve Bank of New Zealand for current lending policy, and Kāinga Ora for first-home support schemes.

Related NZ case studies & tools

DTI Ratio CalculatorCheck your own debt-to-income ratio before applying.DTI Rules NZ ExplainedHow the Reserve Bank's DTI caps actually work.Borrowing Power CalculatorSee how debt reduction changes your capacity.Mortgage Broker WellingtonLocal Wellington market advice.First Home Buyer MortgageYour first step into the NZ property market.Book a Free Call15-min discovery, no obligation.

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Student Loan Plus Car Debt.Approved Under the DTI Cap Anyway.