Work backwards from a target
Start with the cash you expect to need for the purchase, plus a separate allowance for expenses. Subtract money already available and divide the difference by the paydays left before you hope to buy.
For example, NZ$150 each fortnight would add NZ$3,900 over 26 fortnights before any interest. If the required contribution leaves too little for essentials, adjust the target or the timing.
Make saving repeatable
- Set up a transfer soon after payday and review it when income changes.
- Use recent statements to allow for annual costs as well as ordinary weekly expenses.
- Keep a separate buffer for an urgent repair or loss of income.
- If contributing with another buyer, record who is contributing what and discuss ownership with a lawyer.
Check the funds you expect to use
If your plan includes a family gift or a KiwiSaver withdrawal, confirm the amount and date it can be available. A credit card or personal loan adds repayments the mortgage lender will need to assess.
Read how deposits work