Financial Independence Calculator
Find out how much capital you need to live off your returns, and how much you would have to save per month to get there, in New Zealand dollars.
Your Details
Your Path to Independence
Total Capital Needed
$466,170
To support $2,500/mo from age 55 to 100
💬 In Plain Words
To stop at age 55 with $2,500 a month, you need $466,170. From what you already have, you would need to save about $544/mo for the next 25 years.
Estimate based on a constant nominal annual return, with no allowance for tax on investment income (PIR / RWT / FIF). Real returns vary. This is not financial advice.
How the Calculator Works
👋 Simple Explanation
The calculator does two sums. First: how much capital you need so that the money, if you withdraw a share each month, lasts to age 100 without running out — the logic behind the "4% rule" used in retirement planning. Second: how much you would need to save per month, from now to your retirement age, to reach that capital.
Capital Needed = Monthly Withdrawal × [1 − (1+r)⁻ⁿ] / r
Where r = monthly return (annual ÷ 12) and n = the number of months the income has to last (from retirement to age 100).
How to Speed Up Financial Independence
Start as early as possible. Every year you delay starting raises the monthly saving needed to reach the same target significantly.
Cut fixed costs before raising income. Every $100 less in monthly spending directly lowers the capital you need for independence — double the effect of saving the same amount extra.
Spread across instruments. Combining deposits, funds and ETFs helps hold the expected return with smaller swings.
Frequently Asked Questions
- How much capital do I need to be financially independent?
- It depends on how much you want to withdraw each month and how many years the money has to last. The calculator estimates the capital needed to support the monthly income you choose, from the age you pick to age 100, assuming a constant annual return.
- What does financial independence mean?
- It is the point where your investments generate enough passive return to cover your spending, without depending on a salary. It does not mean you stop working — it means you have the choice. It is the idea behind the FIRE movement (Financial Independence, Retire Early).
- How does tax affect financial independence in New Zealand?
- New Zealand has no general capital gains tax, which helps. But investment income is taxed — through your PIR in a managed fund (up to 28%), or at your marginal rate on interest and on FIF income for large overseas holdings. Use figures after tax when you set your target. Note that NZ Super starts at 65 and is not means-tested, and KiwiSaver is locked away until 65, so many early retirees build a separate taxable bridge portfolio.