First-home buyer's guide to NZ mortgages, 2026 edition

First-home buying in 2026 is back in a strange middle gear. Prices have softened roughly 8–14% from their 2021 peak depending on city, but the test rate banks use to assess your servicing has stayed historically high. The result: many borrowers can afford the deposit but fail the bank's stress test. Here's what's actually possible — and where brokers earn their fee.

What deposit do you actually need

The headline 20% deposit isn't a hard floor — banks have low-equity lending tiers (typically 80–90% LVR) and the Kāinga Ora First Home Loan scheme allows 5% deposits for eligible borrowers buying under price caps. Reality:

• 20% deposit: clearest path. Standard rates, no low-equity premium, all lenders compete for you.
• 10–20% deposit: workable. Most banks have a low-equity premium of ~0.5–1.0% on top of standard rates, which usually amortises away within 2–3 years.
• 5% deposit: only via Kāinga Ora First Home Loan, which has price caps that vary by region (e.g. Auckland $700k–$925k depending on dwelling type, lower in the regions). Income caps too.
• <5% deposit: typically not viable in 2026. A small number of second-tier lenders will look at it but pricing is punitive.

KiwiSaver withdrawal

If you've been in KiwiSaver three years or more and haven't owned property before, you can withdraw most of your balance to put toward a first home. Two non-obvious notes: (1) you must leave $1,000 in the account; (2) the withdrawal is only available for owner-occupier purchases, not investment property even via a Family Trust.

First Home Grant

The 2024 First Home Grant rebadge means it's now a single $5,000 (existing dwelling) or $10,000 (new build) per buyer, with income caps and house-price caps that move regionally. A couple buying together can pool grants — so a new-build purchase by two eligible buyers gets $20,000 in grants on top of your KiwiSaver withdrawal. It's free money, but check eligibility carefully — a single high-earning year can disqualify both buyers.

Kāinga Ora First Home Loan

The 5% deposit scheme. Available through participating banks and credit unions, underwritten by Kāinga Ora. Income caps (single ~$95k, couple ~$150k) and price caps apply. Standard mortgage terms otherwise. The trick is finding a lender willing to participate in your specific case — brokers earn their commission here.

How brokers actually help (vs. walking into your bank)

• They know which bank's stress-test calculator is currently most generous — and that changes month to month.
• They can structure your application across multiple income sources (PAYE, contractor, RSU bonus, partner income) in a way bank front-line staff are not trained to.
• They access the second-tier and credit union space the big banks don't compete in — sometimes the answer.
• They get the cashback and rate negotiation right — bank-direct deals are nearly always sub-optimal versus what a broker can negotiate.
• Their fee is paid by the lender. To you, the service is free.

Realistic timeline

From first conversation with a broker to unconditional offer is typically 4–10 weeks for a first-home buyer in 2026. Pre-approval takes 1–3 weeks; finding the right property 2–8 weeks; due diligence and unconditional 1–2 weeks. Settlement is then usually 4–6 weeks after unconditional. Plan for it to take longer than you think.