Home Deposit Timeline Calculator

This calculator shows New Zealanders saving for a first home exactly how long it will take to reach their deposit goal, and what it takes to get there faster. You enter your target deposit, current savings, and how much you can put aside regularly, and the tool projects the timeline to reach your goal, including the effect of interest earned along the way and any KiwiSaver first-home withdrawal you expect to use. You can adjust your savings rate to see how it brings the date forward. The breakdown shows your balance growing month by month, the contribution from savings versus interest, and the projected date you hit your target, turning a vague aspiration into a concrete, motivating plan.

$
$
$
%
$
-
to reach your deposit goal
Starting point (savings + KiwiSaver)$0
Still to save$0
Interest earned on the way$0

KiwiSaver first home withdrawal is subject to the rules, including a minimum amount that must be left in the account, so check your eligibility. Interest is applied monthly on your growing balance. Estimate only, not financial advice.

How it works

The calculator starts with your current savings plus any KiwiSaver you can withdraw, then adds your monthly saving each month and applies interest on the balance. It counts the months until the balance reaches your target deposit. Increasing your monthly saving is usually the fastest lever, while interest and a KiwiSaver withdrawal both bring the goal closer. If you already have enough, it tells you that too.

Worked example

With a $120,000 target, $25,000 saved, $30,000 of KiwiSaver available, and $1,500 saved a month at 4% interest, you start at $55,000 and need $65,000 more. That takes roughly three and a half years, a little less once interest is counted. Lifting the monthly saving shortens it noticeably.

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