Useful next calculations
When to use this calculator
- Before choosing between saving, investing or changing a contribution.
- When you want to compare cautious, base and optimistic return assumptions.
- When you need a projection before making a longer-term decision.
- When you want to see whether starting earlier or contributing more changes the outcome more.
A worked example
These are the example figures the calculator opens with.
| Input | Value |
|---|---|
| Total KiwiSaver Balance (NZ$) | NZ$50,000 |
| Years Contributed | 5 |
| First Home Buyer? | Yes — First Home |
For those figures the calculator returns:
- Eligible KiwiSaver withdrawal: NZ$49,000.00
- First home grant (closed): NZ$0.00
- Total available: NZ$49,000.00
Method & assumptions
For an eligible first-home withdrawal after at least three years of KiwiSaver membership, leave NZ$1,000 in the account. Enter an eligible balance excluding Australian superannuation transferred to KiwiSaver, which cannot be withdrawn for a first home. The First Home Grant closed to new applications in May 2024 and is not added.
Your scheme provider confirms withdrawal eligibility and timing. Some previous home owners may qualify through a separate process, which this first-home illustration does not model.
Common mistakes
- Using an assumption that is not supported by a current local quote, bill, statement or official source.
- Treating a generic estimate as a lender, provider, payroll or tax authority decision.
- Mixing monthly and annual inputs without converting them consistently.
- Testing only one scenario instead of checking how a cautious assumption changes the result.
What to do next
- Run a second scenario with a cautious assumption so you can see the downside clearly.
- Compare the result with the related calculators below before making a decision.
- Check current local rules, eligibility and provider terms before applying or committing money.
- Keep a record of the assumptions so you can update the estimate when a quote, bill or pay figure changes.