KiwiBuild Calculator
Check your eligibility for New Zealand's KiwiBuild programme. Income caps: $120,000 for single buyers, $180,000 for couples. Price caps from $500,000 to $700,000 depending on your region. Includes First Home Grant and KiwiSaver stacking, off-the-plan timeline, and 5-year stand-down impact. All figures in NZD.
KiwiBuild price caps vary by region. Properties must be new builds or substantially renovated. The program targets affordable housing relative to local markets.
| Region | Price Cap | Market Type | 10% Deposit | Monthly (6.5%, 30yr) |
|---|---|---|---|---|
| Auckland ◀ selected | NZ$700,000 | Metro / High-demand | NZ$70,000 | NZ$3,982/mo |
| Queenstown-Lakes | NZ$700,000 | Metro / High-demand | NZ$70,000 | NZ$3,982/mo |
| Wellington / Lower Hutt | NZ$650,000 | Metro / High-demand | NZ$65,000 | NZ$3,698/mo |
| Tauranga | NZ$650,000 | Metro / High-demand | NZ$65,000 | NZ$3,698/mo |
| Hamilton / Waikato | NZ$600,000 | Regional | NZ$60,000 | NZ$3,413/mo |
| Christchurch | NZ$600,000 | Regional | NZ$60,000 | NZ$3,413/mo |
| Dunedin | NZ$550,000 | Regional | NZ$55,000 | NZ$3,129/mo |
| Other regions | NZ$500,000 | Regional | NZ$50,000 | NZ$2,844/mo |
KiwiBuild can be combined with other first home buyer schemes. This "stacking" can significantly reduce your required cash deposit.
| Scheme | Amount Available | Conditions | Compatible with KiwiBuild |
|---|---|---|---|
| KiwiSaver First Home Withdrawal | NZ$40,000 | 3+ years contributions; $1,000 stays in KiwiSaver | Yes |
| First Home Grant (new build) | NZ$10,000 | Up to $10,000/person; income and price caps apply; 3yr KiwiSaver | Yes |
| KiwiSaver HomeStart (First Home Loan) | 5% deposit only | Kainga Ora guarantee; income cap $95K-$150K; separate scheme | Separate scheme — not typically combined |
| Welcome Home Loan / First Home Loan | 5% min deposit | Kainga Ora guaranteed 95% LVR loan | Can stack with KiwiSaver withdrawal and First Home Grant |
How to Use This KiwiBuild Calculator
Select your household type (single or couple/family), choose your location, enter your gross household income, and set the property price to check your KiwiBuild eligibility instantly. The calculator also shows your estimated monthly mortgage payment, deposit required, and how to combine KiwiBuild with other first home buyer schemes.
KiwiBuild Eligibility Requirements
- Income cap: Single buyers $120,000 gross; couples and families $180,000 combined gross
- First home buyer: Must not currently or previously own a home (applies to all applicants)
- Citizenship: New Zealand citizen, permanent resident, or certain visa holders
- Intended use: Must intend to live in the property — not for investment or renting
- Price cap: Property must be within the regional price cap ($500,000 to $700,000 depending on location)
- Stand-down: Cannot resell on the open market for 5 years from settlement
The Formula
Price Eligibility: Purchase Price ≤ Regional Price Cap
Deposit Required: Purchase Price × Minimum Deposit % (typically 10%)
Loan Amount = Purchase Price − Deposit − KiwiSaver Withdrawal − First Home Grant
Monthly Payment = Loan Amount × (r(1+r)⊃n) / ((1+r)⊃n − 1)
where r = monthly interest rate, n = total months
Example: $680,000 KiwiBuild, 10% deposit ($68,000), 6.5% rate, 30 years.
Loan = $612,000. Monthly = $3,870 NZD.
Example
Sam and Alex Buying Their First KiwiBuild Home in South Auckland
Sam earns $95,000 and Alex earns $75,000 combined ($170,000). They are buying a new 3-bedroom townhouse in South Auckland for $660,000. They have been contributing to KiwiSaver for 4 years.
| Household Income | $170,000 (under $180K cap) |
| Region | Auckland (cap: $700,000) |
| Property Price | $660,000 |
| Eligibility Check | Income: Pass | Price: Pass |
| Minimum Deposit (10%) | $66,000 |
| KiwiSaver Withdrawal (combined) | $52,000 |
| First Home Grant (new build x2) | $20,000 |
| Effective Total Deposit | $138,000 (20.9%) |
| Loan Amount | $522,000 |
| Monthly (6.5%, 30yr) | $3,300/mo NZD |
| Stand-Down Period | 5 years from settlement |