Westpac NZ Mortgage Rates: Current Fixed & Special Rates

Westpac NZ has made several rate moves since late 2025 — some cuts, some increases — and the net result leaves borrowers with some genuinely competitive short-term options right now. Here’s a clear breakdown of where Westpac’s fixed rates actually stand as of April 2026.

6 months fixed standard: 5.09% p.a. ·
1 year fixed special: 4.69% p.a. ·
18 months fixed special: 4.99% p.a. ·
4-year fixed special: 5.19% p.a. ·
5-year fixed special: 5.29% p.a.

What are Westpac’s fixed mortgage rates?

Westpac NZ publishes both standard and special rates for its Choices Fixed home loan product. Special rates carry conditions — typically requiring borrowing below 80% loan-to-value ratio — but sit meaningfully lower than standard equivalents. The 6-month special dropped to 4.49% p.a. on 2 April 2026, making it the lowest short-term special among the five major banks at that time (Westpac NZ Media). The standard 6-month rate, by contrast, sits at 5.09% p.a. — a 60-basis-point gap worth noting for anyone comparing.

When comparing Westpac’s specials against competitors across common loan terms, several patterns emerge — some terms show Westpac leading, while others fall behind rivals like TSB and BNZ.

The pattern shows Westpac’s short-term specials (6-month) tie for the market lead, while longer terms match the best available from TSB. Westpac’s advantage is most distinct on the 6-month term and on the 3-year special, which was uniquely sub-5% among the five major banks as of February 2026.

6-month rates

The 6-month term has seen the most activity. Westpac cut its special rate from 4.69% to 4.49% in early February 2026, then held that level through April. Standard 6-month rates remain higher at 5.09% (Westpac NZ Official Rates). As of late April 2026, Westpac’s 6-month special ties with ANZ, BNZ, and Kiwibank at 4.49% (Opes Partners), giving borrowers who want short-term flexibility a genuinely competitive option.

1-year special rates

The 1-year special stands at 4.69% p.a. as a base, but Westpac increased it by 10 basis points to 5.29% on 20 April 2026 (NZ Herald). That move followed broader wholesale rate increases across the sector. The standard 1-year rate sits at 5.29% (Westpac NZ Official Rates), meaning the gap between standard and special has tightened considerably in recent weeks.

18-month rates

The 18-month special rate sits at 4.99% p.a. as of late April 2026. In mid-April, Westpac raised the 18-month rate by 14 basis points alongside the 1-year increase (NZ Herald). Standard 18-month rates are listed at 5.59% (Westpac NZ Home Loans), making the special rate notably more attractive for borrowers who can meet the LVR conditions.

4- and 5-year cuts

On 23 February 2026, Westpac cut its longer-term specials: the 3-year fell to 4.99% p.a., the 4-year to 5.19% p.a., and the 5-year to 5.29% p.a. — each reduced by 0.20% (Westpac NZ Media). At the time, Westpac’s 3-year special was the only sub-5% three-year rate among the five major banks. These longer-term cuts came despite earlier increases in December 2025, when Westpac had raised 2-to-5-year rates by 0.30% while cutting the 6-month special.

The implication: Westpac’s competitive edge shows most clearly on short-term specials and the 3-year term, but borrowers seeking the absolute lowest 1-year rate may find better options with TSB or BNZ.

What is the current interest rate for mortgages in NZ?

New Zealand mortgage rates have moved choppily since late 2025, driven by wholesale market shifts following Reserve Bank OCR announcements. Westpac’s rate strategy has reflected this — cutting some terms while raising others depending on where wholesale funding costs moved. The bank’s 6-month special rate sits among the lowest available from the major five banks as of late April 2026, tied at 4.49% with ANZ, BNZ, and Kiwibank (Opes Partners). However, Westpac doesn’t lead on every term.

Westpac vs market overview

TSB currently offers the lowest 1-year fixed rate at 4.39% as of 23 April 2026, compared to Westpac’s 4.69% base rate (Opes Partners). BNZ matches Westpac on the 6-month special at 4.49% but leads on the 1-year at the same level. Westpac’s competitive edge shows most clearly on short-term specials (6-month) and on the 3-year term, where its 4.99% special was uniquely sub-5% among the big five banks as of February 2026. By contrast, Westpac’s standard rates — 5.09% for 6-month, 5.29% for 1-year — sit well above both its own specials and competitors’ best offers.

Are Westpac 6-month rates competitive?

Yes. As of April 2026, Westpac’s 6-month special at 4.49% ties for the lowest among all five major banks — matching ANZ, BNZ, and Kiwibank at the same rate (Opes Partners). The standard 6-month rate sits at 5.09% (Westpac NZ Official Rates), making the eligibility criteria for specials the key differentiator. Borrowers who meet the below-80% LVR threshold access a meaningfully lower rate.

What terms apply to Westpac fixed mortgages?

Westpac’s Choices Fixed product line applies both standard and special rates. Special rates require borrowing below 80% loan-to-value ratio and are available across terms ranging from 6 months to 5 years (Westpac NZ Official Rates). Standard rates carry no LVR condition but sit 50–60 basis points higher across most terms. All rates are subject to change without notice, and lending criteria apply.

Floating vs fixed options

Westpac’s floating or variable rate isn’t featured prominently in current published specials, which focus on the Choices Fixed product line. Fixed rates remain the dominant choice for borrowers seeking payment certainty, and the short-term specials (6-month to 18-month) reflect Westpac’s positioning for borrowers who want flexibility without sacrificing too much on rate. All rates are subject to change without notice, and lending criteria apply (Westpac NZ Media).

What this means: Westpac’s short-term specials are genuinely competitive in the current market, but borrowers seeking the absolute lowest 1-year rate may find better options with TSB or BNZ.

How much is a mortgage repayment on $400,000 NZ?

The easiest way to answer this is with a calculator, and Westpac provides an online repayment tool on its home loans rates page (Westpac NZ Home Loans). Running rough numbers with current specials gives borrowers a useful frame of reference — though actual repayments depend on loan term, deposit size, and whether the special or standard rate applies.

Calculator examples at key rates

At a 4.69% 1-year special rate on a $400,000 principal over 30 years, monthly repayments sit around $2,075–$2,100 before fees. At the 5.29% 1-year rate (post-April increase), that figure creeps closer to $2,220 per month. The difference between those two scenarios — roughly $120–$145 per month — compounds significantly over the life of the loan. Westpac’s online calculator lets borrowers input their exact loan amount, term, and chosen rate to get a precise figure, which is more useful than any table of averages.

Factors affecting repayments

Three variables drive monthly repayment amounts: the interest rate applied, the loan term remaining, and the principal amount. A larger deposit reduces the principal and improves the LVR, which may also unlock Westpac’s special rates rather than the higher standard equivalents. Breaking an existing fixed rate early typically incurs break costs, so borrowers already locked in should weigh refinancing penalties against potential savings from switching.

The pattern: $400,000 borrowed at current Westpac specials costs roughly $2,075–$2,225 per month depending on the term selected. The April 2026 rate increase narrowed the gap between special and standard offers, making the eligibility conditions for specials more valuable to clear.

Will mortgage rates drop to 3% again?

The short answer is unlikely in the near term. New Zealand mortgage rates peaked after the OCR hiking cycle and have settled into a range that reflects higher-for-longer wholesale funding costs. Westpac’s own rate movements since December 2025 illustrate the volatility — cuts one month, increases the next — which suggests the market isn’t signaling a swift return to the sub-3% era seen in the post-COVID era.

Historical context

New Zealand’s record-low mortgage rates hit the 2% range briefly during the pandemic era, driven by the RBNZ’s emergency OCR cuts. The subsequent hiking cycle pushed rates well above 6% at their peak. Westpac’s current specials (4.49%–5.29%) represent a significant improvement from those highs, but they’re still 150–280 basis points above the pandemic lows. The wholesale rate environment that drives bank pricing has shifted structurally higher, and until the OCR declines meaningfully, there’s limited scope for mortgage rates to return to those lows.

Current forecasts

Morgan Stanley analysis cited in market commentary pointed to a 2026 OCR outlook that supports gradual rate relief but not a dramatic drop. Analysts tracking the wholesale market note that two-year rates were more than 0.5% higher in early 2026 than they were in late April 2026 (Westpac NZ Media). Until that relationship inverts, a return to 3% mortgage rates looks improbable. Westpac’s own positioning — holding back some wholesale cost increases for short-term rates while lifting others — suggests the bank isn’t banking on a rapid market-wide rate collapse either.

The catch: borrowers waiting for a dramatic rate drop may wait longer than they’d like. Locking in today’s competitive short-term specials now rather than timing for an uncertain future may be the more pragmatic move.

Will NZ interest rates drop in 2026?

The Reserve Bank of New Zealand’s OCR review schedule remains the primary driver of where mortgage rates head. Westpac has moved its own rates both up and down since late 2025, reflecting the choppy wholesale environment rather than a clear directional trend. Whether that changes depends on upcoming OCR decisions and how wholesale markets price them in.

OCR key dates

The RBNZ’s OCR review schedule provides fixed reference points. Each announcement ripples into wholesale rate movements that banks like Westpac then incorporate into their lending pricing. The pattern since late 2025 has been: OCR-related signals → wholesale rate shifts → Westpac responding with rate changes within days or weeks. Borrowers can track these dates to anticipate potential movement, though the direction (up or down) remains uncertain until each announcement.

Westpac positioning

Westpac’s recent behavior — cutting 6-month specials while raising longer terms in February, then lifting 1-year and 18-month rates in April — shows a bank managing its lending book reactively rather than signaling a confident directional bet. The bank’s official statement around the February rate changes noted it was “holding back some of the increase in wholesale borrowing costs to customers” (Westpac NZ Media), suggesting it’s trying to balance customer retention with margin protection.

What this means: the April 2026 increases show Westpac can just as quickly reverse those concessions when wholesale markets move against it. The gap between standard and special rates highlights the value of meeting LVR conditions — borrowers who don’t qualify for specials may be paying materially more for the same loan.