FIRE calculator

When could your portfolio make work optional?

Start with the life the portfolio needs to fund. The result shows the target, the saving needed by your chosen date, and when your current plan could reach it in inflation-adjusted terms.As of 6 September 2026 · Reader-selected planning assumptions

Your scenario

All money values are inflation-adjusted.

Keeping a part-time job? The Barista FIRE calculator takes that income off first

Monthly spending € Reliable monthly income alongside the portfolio € Zero for full FIRE. Any reliable ongoing income here reduces what the portfolio has to supply. Withdrawal rate % Portfolio today € Monthly investment € Years until your target date years Annual return before inflation % Inflation % Years the retirement income should last years

Tax on the money you take out

Estimated tax on realised gains Tax-free allowance each year € The Sparerpauschbetrag: 1,000 per person, 2,000 for a jointly assessed couple. Share of the portfolio that will be gain % Only the gain portion of each sale is taxed. A long savings plan ends up mostly gain.

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What this answers

How much capital would need to cover the spending gap?

Full FIRE sets reliable income to zero. Barista FIRE subtracts ongoing net income first. Lean or Fat FIRE use the same formula with a lower or higher spending target.

Important assumption

The ongoing income is treated as reliable and inflation-linked

If it may stop, start later or fail to rise with prices, compare a lower-income case and model its timing in the Full Simulator.

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The target is not a safety guarantee

A single withdrawal rate does not show poor early returns. Compare the withdrawal-rate guide and a month-by-month retirement run before treating the target as sufficient.