After Westpac's 2yr special, BNZ answers with spring pricing — sharp 18-month, 2yr cut, most other fixeds up
BNZ's 22 Sep spring card: 18-month held at 5.29%, 2-year cut to 5.35%, most other fixeds up. How that sits next to Westpac's 2yr 5.29% special — and what brokers should check before clients lock.
A week after Westpac reshuffled fixed pricing, BNZ has answered with its own spring card: keep the competitive tenor sharp, lift most of the rest.
That pattern matters for refix and purchase conversations this spring — especially 18-month vs 2-year — without treating either bank as "the market."
What BNZ changed (announced 22 Sep 2026)
Per interest.co.nz, 1News, and Stuff (rates table as at 22 Sep):
| Term | BNZ special (as reported) | Move |
|---|---|---|
| 6 months | 4.89% | +10 bp |
| 1 year | 5.19% | +20 bp |
| 18 months | 5.29% | held |
| 2 years | 5.35% | −10 bp |
| 3 years | 5.59% | +10 bp |
| 4 years | 5.65% | +20 bp |
| 5 years | 5.75% | +26 bp |
Specials typically need around ≥20% equity; low-equity borrowers pay more. No BNZ term-deposit announcement rode with this mortgage move.
Always re-check the live card and conditions before you quote a client.
Competitive map: Westpac still owns Big-5 2yr
Westpac's earlier reshuffle (effective around 21 Sep) still leads the Big-5 2-year special at 5.29%.
BNZ's 2yr at 5.35% is sharper than it was — and still above Westpac's 2yr. Where BNZ looks sharp is 18 months at 5.29%.
Don't claim BNZ has the lowest Big-5 2yr. It doesn't.
Why now (short)
Same backdrop as the Westpac piece: wholesale funding still elevated after the mid-September squeeze (Tony Alexander / swaps theme we already covered). This post is the second Big-5 spring move, not a remake of that wholesale forecast — and we're not inventing new funding bp numbers here.
Broker conversation: 18m vs 2yr
- 18-month certainty at BNZ's 5.29% vs rolling sooner into whatever Oct–Mar OCR path lands
- 2-year — compare Westpac 5.29% special vs BNZ 5.35% (and other lenders' live cards)
- Negotiate the package — cashbacks, fees, and break costs can matter as much as 6–10 bp on the rate (no fabricated dollar savings)
- Check roll dates this spring — clients coming off fixes now are exactly who these cards are aimed at
Light OCR backdrop
Next RBNZ decision is 28 October. Bank economists still disagree on the path (we covered ANZ's three-hike call to 3.50% separately). Don't re-litigate that here — use it only as "pricing can stay uneven while forecasts diverge."
Action this week
- Pull clients with spring roll / lock dates
- Reprice against BNZ 18m / 2yr and Westpac 2yr 5.29% on live specials
- Keep docs and numbers ready so the chat is term strategy, not payslip chase
Disclaimer: Not financial advice. One bank's card ≠ the whole market. Specials and LVR rules change — check live offers.
Ready to prepare?
For brokers: Before the next refix or purchase lock, send clients your branded link — affordability, DTI, deposit and opt-in docs ready so you're comparing 18m vs 2yr on strategy, not archaeology. Learn more about MortgageReady for brokers.
For buyers: Don't lock off one headline. Know your number, check equity band, and talk 18m vs 2yr with your broker. Start free at MortgageReady.