Low-Deposit FHB — Case Study

First Home Buyer
Crosses the Line with an 8% Deposit + Family Guarantee.

A young Christchurch couple bought their first home with just 8% saved, using a family guarantee from her parents to bridge the deposit gap without injecting fresh cash.

8%
Their Deposit
$520K
Property Price
$0
Family Cash
$8K
Cashback
28 days
To Pre-Approval

The problem.

Liam and Aroha are a young couple in their late 20s living in Christchurch — Liam works as an early-career civil engineer ($82,000) and Aroha as a registered nurse ($78,000). They'd been saving for 4 years and had $41,000 in savings plus $19,000 in combined KiwiSaver. On a $520,000 starter home in Halswell, that gave them an 11.5% deposit including KiwiSaver — well short of the 20% main-bank threshold.

They'd been told repeatedly by Christchurch agents and one bank visit that they should keep saving for another 18-24 months. Aroha's parents, who owned their Hornby home mortgage-free, had offered to help — but Liam was uncomfortable with the idea of accepting cash from family, and her parents preferred not to liquidate any savings either.

When they approached Finch, we explained that the family guarantee structure available across all main NZ banks allows family equity to support a deposit without requiring family cash. Aroha's parents would essentially co-pledge a portion of their home equity (which they'd never need to liquidate) to bridge the LVR gap for Liam and Aroha's loan — a clean, well-established NZ structure.

How we solved it.

1
Family Guarantee structureWe explained the Family Guarantee facility to Aroha's parents in detail — including the strictly limited exposure (capped at the gap amount, ~$62,000, not the whole loan), the release mechanism once Liam and Aroha's equity grows to 20% of property value, and the requirement for independent legal advice for the guarantors. Aroha's parents agreed.
2
Independent legal advice for guarantorsWe coordinated with a solicitor to provide Aroha's parents independent legal advice on the guarantee — a regulatory requirement designed to protect family guarantors from undue pressure. The advice confirmed the guarantee was limited, well-structured, and unlikely to crystallise unless Liam and Aroha defaulted (which their serviceability comfortably supported).
3
Lender selection for family guaranteeThree of the main NZ banks offer family guarantee facilities under different brand names. We selected the lender whose family guarantee terms were cleanest, paired with the sharpest current 2-year fixed rate, and offered an $8,000 cashback contribution to cover Liam and Aroha's legal fees, valuation, and moving costs.
4
Release strategy planningWe modelled the timeline for Aroha's parents' guarantee release. With expected Christchurch property growth plus principal repayment, Liam and Aroha's equity should cross the 20% LVR mark in approximately 3-4 years, at which point the family guarantee is fully released and Aroha's parents' home title is unencumbered again.

The result.

Pre-approval was issued within 28 days. Liam and Aroha purchased a 3-bedroom Halswell home for $518,000, just under their $520,000 ceiling. Settlement occurred 5 weeks later. Their loan was structured 70/30 — 70% on a 2-year fixed at 5.69%, 30% floating to allow extra repayments.

The $8,000 cashback contribution from the new lender fully covered their solicitor fees, valuation, and moving costs — meaning the move was effectively cost-neutral despite the lender requiring no fresh family cash. Aroha's parents' home title carries a strictly limited second mortgage that will release automatically once equity hits 20%.

Liam's feedback: "We were told to wait two more years. Two months later we had keys. Finch found a structure that worked for everyone — including Aroha's parents, who got proper legal advice and were genuinely comfortable with the protections built in."

Could we help you
get the same result?

Book a free 15-minute consultation. We compare your scenario across 20+ NZ lenders and structure the loan for the best outcome.

Book a Free Call → More NZ Case Studies