Tool · planning

Financial independence

The magic number for financial freedom isn't magic, it's a division. Enter your spending, your savings and some sensible returns, and see the year your investments could start paying for your life.

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Your numbers

The share of your wealth you take out each year. 4% is a widely quoted reference; the lower, the more cautious.

If your pay and your savings grow over time, enter it here. At 0% your saving stays flat.

Assumptions and how it's calculated

What it calculates. The wealth you need is your yearly spending divided by the withdrawal rate. At 4% that's 25 times your spending; at 3%, about 33 times. That target is in today's money and, since prices go up, it's updated for inflation every year.

How your wealth grows. It's worked out month by month: the money grows at the yearly return you enter (converted to its monthly equivalent) and your saving is added at the end of each month. The monthly saving goes up by the percentage you choose at the start of every year. You get there in the first month your wealth is above the target for that month.

Target today = S / w Target in month m = (S / w) × (1 + i)^(m/12) Monthly return = (1 + r)^(1/12) − 1 Wealth (month m) = Wealth (m−1) × (1 + monthly return) + C × (1 + g)^(year − 1) S: yearly spending · w: withdrawal rate · i: inflation · r: return · C: monthly saving · g: saving growth

What it leaves out. Taxes, fees, state pensions, and a run of bad years right when you start withdrawing (sequence risk). Real market returns aren't constant: some years are great and some fall, so the year you see here is a guide, not a date.

If you want to see how much fees eat along the way, try The cost of fees.

This is an exercise based on your assumptions, not a recommendation.

Everything is calculated in your browser; nothing is sent or stored.

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Invitation only, for now

We’re a small group and we like growing slowly, so accounts can’t be created right now: membership is by invitation. If you’d like to join, drop us a line and we’ll tell you more.