Step 1 - Income
Joint uses higher living cost allowance ($2,200/mth vs $1,500)
We estimate PAYE + ACC + 3.5% KiwiSaver on gross income
Standard owner-occupied lending — 20% deposit required.
$
Additional Income
Combined annual net income after tax and KiwiSaver-
Step 2 - Household
$350/mth added per dependant
Standard NZ home loans are 25-30 years
Base Living Costs
$1,500/mth
Single - per month
Dependant Costs
$0/mth
$350 per dependant / month
Total Living Costs
$1,500/mth
Bank allowance / month
Step 3 - Existing Debts and Deposit
Banks count credit card limits at 4% of the total limit per month regardless of your balance.
$
Total across all cards - banks count 4%/mth
$
Savings + KiwiSaver + gifted funds
No loans added - car loans, personal loans, student loans, etc.
Estimated borrowing power - based on your inputs
Estimated Loan
$0
Serviceability at 6.5%
Estimated Purchase Price
$0
Loan + your deposit
Weekly Repayment
$0
At 6.5% over 25 yrs
Why 6.5%? The RBNZ requires banks to stress-test mortgages at approximately 2% above the prevailing rate. With 1-year fixed rates around 4.55-4.69% (May 2026), the stress-test rate is approximately 6.5%. Speak with Ben for a personalised breakdown.
Serviceability Breakdown
How banks calculate your maximum loan - monthly
| Gross monthly income | - |
| Less: PAYE tax and ACC (IRD 2025/26) | - |
| Less: KiwiSaver (3.5% employee contribution) | - |
| Net monthly income | - |
| Less: base living costs | - |
| Less: dependant costs | - |
| Less: credit card commitment (4% of limit) | - |
| Less: other loan repayments | - |
| Less: rates & insurance (allowance included) | - $600/mth |
| Monthly surplus for mortgage | - |
| Borrowing capacity at 6.5% over 25 yrs | - |
Deposit Check
Loan-to-Value Ratio (LVR)
-
-
Deposit Assessment
-
-
Current NZ Fixed Rates
Best rates across major NZ lenders
May 2026
| Term | Best Rate | Lender(s) |
|---|---|---|
| 6 months | 4.49% | ANZ, ASB, BNZ, Kiwibank, SBS |
| 1 year | 4.55% | Co-operative Bank |
| 18 months | 4.95% | ASB, BNZ, SBS |
| 2 years | 5.19% | BNZ, Westpac, TSB, SBS |
| 3 years | 5.29% | SBS |
| 4 years | 5.39% | Westpac |
| 5 years | 5.59% | Westpac |
| Floating | ~7.20% | Varies |
Special rates require 20% or more equity. Source: interest.co.nz - Rates shown are indicative only and subject to change. Contact Ben to request current rates.
Ready to take the next step?
These figures are a guide only. Ben will compare rates across all major NZ lenders at no cost to you.