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Early retirement toolkit

Work out your FIRE number, then test it

The JMM calculators that settle the FIRE decisions, in the order they come: how big the target is, which path closes the gap, whether withdrawals survive a bad decade, and what the account rules take back.

15 formula-tested calculators and 8 guides, each with its assumptions and limitations on the page.

FIRE planning sequence

Four checks, in the order a FIRE plan needs them

Start with the first question your plan has not settled. Each stage points to the calculator that makes its assumption visible.

The four-stage map

How big does the portfolio have to be?

Annual spending divided by a withdrawal rate is the whole formula. These two settle what the number is and whether the money actually lasts.

See the FIRE target reference table
FIRE number by annual spending and withdrawal rate
Annual spending At 3%At 3.5%At 4%At 5%
$40,000 $1,333,333$1,142,857$1,000,000$800,000
$60,000 $2,000,000$1,714,286$1,500,000$1,200,000
$80,000 $2,666,667$2,285,714$2,000,000$1,600,000
$100,000 $3,333,333$2,857,143$2,500,000$2,000,000

Spending divided by the withdrawal rate, nothing else. Use the calculator above for your exact spending and runway.

How will you close the gap?

Keep contributing, let compounding take over, or fund part of spending with work. These calculators price each path without pretending the trade-offs are interchangeable.

Does the plan survive a bad decade?

A target that works at the average return can still fail on the order the returns arrive in. These three price the risk the averages hide.

What do the account rules give and take back?

For Canadian plans the wrapper decides the after-tax outcome as much as the return does. These run on the actual statutes, with sources beside the limits.

The arithmetic behind the milestones

The written versions of the same decisions, on compounding and what a portfolio can pay out. Each guide leads with its answer, carries its sources, and points at the calculator that runs the arithmetic.

Decisions this page does not sequence