New Zealand has among the least affordable housing markets in the developed world relative to income. In Auckland, median house prices are roughly 10× median household income — meaning a standard mortgage on a median property consumes a significant portion of take-home pay.
But “unaffordable” nationally doesn’t mean you can’t afford anything. This guide gives you a clear-eyed assessment of where you stand and what it actually takes to buy in 2026.
The Two Affordability Tests You Must Pass
Before any lender approves a mortgage, you must pass two tests simultaneously:
Test 1: Do you have enough deposit?
The standard deposit requirement is 20% of the purchase price (80% LVR). The Kāinga Ora First Home Loan reduces this to 5% for eligible buyers.
| Property price | 20% deposit | 5% deposit (First Home Loan) |
|---|---|---|
| $500,000 | $100,000 | $25,000 |
| $600,000 | $120,000 | $30,000 |
| $700,000 | $140,000 | $35,000 |
| $800,000 | $160,000 | $40,000 |
| $900,000 | $180,000 | $45,000 |
| $1,000,000 | $200,000 | $50,000 |
Test 2: Can you service the loan?
Banks stress-test your ability to repay at a higher rate than today’s market rate — typically adding 2–3% to the assessment rate. This means you need income that can comfortably handle not just current rates, but significantly higher ones.
As at April 2026, many banks apply a floor assessment rate of around 8.0%–8.5%. Your application must demonstrate you could afford repayments at that rate, even though market rates are lower.
How Much Can You Borrow? (2026)
Debt-to-income (DTI) limits — introduced by the RBNZ in July 2024 — cap most owner-occupier borrowing at 6× gross household income.
| Gross household income | DTI cap (6×) | Practical borrowing capacity* |
|---|---|---|
| $70,000 | $420,000 | $370,000–$400,000 |
| $90,000 | $540,000 | $480,000–$510,000 |
| $100,000 | $600,000 | $530,000–$560,000 |
| $120,000 | $720,000 | $630,000–$670,000 |
| $140,000 | $840,000 | $740,000–$780,000 |
| $160,000 | $960,000 | $850,000–$890,000 |
| $180,000 | $1,080,000 | $950,000–$990,000 |
| $200,000 | $1,200,000 | $1,050,000–$1,100,000 |
Practical capacity is lower than the DTI cap because banks also apply the serviceability stress test and deduct living expenses.
How living expenses affect borrowing
Banks use the Household Expenditure Measure (HEM) or your declared actual expenses — whichever is higher — when assessing affordability. High living costs reduce your borrowing capacity.
Rough example: A household declaring $2,500/month in committed expenses (car loans, credit cards, childcare, regular commitments) may find their borrowing capacity $50,000–$100,000 below the DTI ceiling.
Income Required to Buy in Each City
What income do you need to purchase the median property in each NZ city?
Assumptions: 20% deposit available, 30-year term, stress-tested at 8.0%
| City | Median price (approx.) | Loan amount (80%) | Minimum household income required |
|---|---|---|---|
| Auckland | $1,000,000 | $800,000 | ~$145,000–$160,000 |
| Wellington | $810,000 | $648,000 | ~$120,000–$130,000 |
| Tauranga | $820,000 | $656,000 | ~$120,000–$130,000 |
| Hamilton | $700,000 | $560,000 | ~$100,000–$115,000 |
| Christchurch | $700,000 | $560,000 | ~$100,000–$115,000 |
| Dunedin | $600,000 | $480,000 | ~$90,000–$100,000 |
| Napier/Hastings | $580,000 | $464,000 | ~$85,000–$95,000 |
| Nelson | $550,000 | $440,000 | ~$82,000–$90,000 |
| Regional NZ | $400,000–$550,000 | $320,000–$440,000 | ~$60,000–$85,000 |
These are rough estimates based on DTI limits and serviceability tests. Your situation will vary.
What this means for different income levels
Single income earner on $70,000:
- Borrowing capacity: ~$370,000–$400,000
- Affordable in: regional NZ, some outer Waikato or Northland areas
- Challenge: Auckland, Wellington, Tauranga are out of reach on a single income at this level
Couple on combined $120,000 ($60,000 each):
- Borrowing capacity: ~$630,000–$670,000
- Affordable in: Christchurch, Hamilton, Dunedin, many regional areas
- Challenge: Median Auckland price is still ~$350,000 above borrowing capacity
Couple on combined $160,000:
- Borrowing capacity: ~$850,000–$890,000
- Affordable in: Most NZ cities including outer Auckland suburbs
- Challenge: Central Auckland, premium Wellington suburbs
Using the First Home Loan to Improve Affordability
The First Home Loan doesn’t increase your borrowing capacity, but it dramatically reduces the deposit barrier. Instead of needing $140,000 for a $700,000 property, you need $35,000.
This is particularly powerful when combined with KiwiSaver withdrawals, which can often cover the 5% deposit requirement entirely for buyers who’ve been contributing for several years.
The affordability test (income and debt) remains the same — but removing the deposit barrier is often the more immediate challenge for many buyers.
The Rent vs Buy Comparison
Many NZ buyers assume renting is “throwing money away.” The reality is more nuanced.
Example: $750,000 Wellington apartment
- Rent: $2,800/month
- Mortgage (5.5% rate, 30 years, 20% deposit): ~$3,400/month
- Rates, insurance, body corporate: ~$700/month
- Total ownership cost: ~$4,100/month — $1,300 more than renting
In this scenario, owning costs more each month than renting. The investment case for ownership comes from:
- Capital gain (not guaranteed)
- Equity build-up via principal repayment
- Hedge against rent increases
- Lifestyle stability
In markets where yields are very low (like central Auckland), renting is often the better financial decision in the short term — but over a 10–20 year horizon with capital appreciation, ownership typically wins.
What If You Can’t Afford to Buy Yet?
Being unable to buy right now doesn’t mean you never will. The most effective strategies:
1. Optimise your KiwiSaver — increase your contribution rate now to build a larger withdrawal balance. See Using KiwiSaver for Your First Home.
2. Use the First Home Loan — if you haven’t looked at the 5% deposit option, start there. Many buyers who think they need $140,000 actually need $35,000. See First Home Loan guide.
3. Expand your search area — income that can’t buy a median Auckland property may comfortably buy in Hamilton, Christchurch, or a regional centre. Remote working has made location more flexible.
4. Build income — a salary increase or additional income source is the most direct lever on borrowing capacity. Each $10,000 of additional gross income increases borrowing capacity by ~$50,000–$60,000.
5. Reduce debt — paying off car loans and credit cards directly increases borrowing capacity, often by more than the debt amount (because banks count the minimum repayment, not just the balance).
Further Reading
- First Home Buyer Guide NZ 2026 — the complete pathway
- How Much Deposit Do I Need? — deposit targets by price
- First Home Loan (Kāinga Ora) — buy with 5% deposit
- Saving for a House Deposit — strategies to reach your goal
- Getting a Mortgage in NZ — the full application process