What is FIRE (financial independence, retire early)?

Where the term comes from: Joe Dominguez, Vicki Robin and Your Money or Your Life

Joe Dominguez and Vicki Robin's 1992 book Your Money or Your Life is the movement's foundational text. Its core reframe: money isn't cash, it's a claim on hours of your life, and every purchase should be weighed against the hours it cost you to earn.

Real hourly wage: what the FIRE movement means by "life energy"

The book's method subtracts work-related overhead, commuting time, work clothing, decompression time after a bad day, from both your gross pay and your work hours, to get a real hourly rate. A job paying $35 an hour that actually costs you 12 hours a day once commuting and decompression are counted pays a real rate well below the stated one. This is an illustrative way of thinking about the tradeoff, not an official government figure.

The crossover point: when investment income replaces your paycheck

The crossover point arrives in the month your investment income, at whatever withdrawal rate you've chosen, exceeds your monthly spending. Past that point, working becomes optional rather than required.

Years to financial independence by savings rate

A higher savings rate does two things at once. It shrinks the portfolio you need, since your target is a multiple of expenses, and it grows the dollar amount you can invest each year. Two people earning $60,000 and $150,000 who both save 50% of take-home pay reach financial independence in the same number of years, because the ratio, not the dollar amount, drives the outcome.

The model assumes your investment return, after inflation, stays roughly constant across the accumulation period, and that your spending in retirement matches your spending while you were saving.

"Real return" means after inflation. A 7% real return is aggressive for an all-index portfolio. 5% is closer to a long-run historical average after inflation. Both are estimates, not promises.

Why some FIRE retirees use 28x to 33x instead of 25x

The 4% rule was tested against roughly 30-year retirements. A FIRE retiree stopping work at 40 is planning for 50 years or more, so a lower starting withdrawal rate extends the historical success rate over that longer horizon. Economist Karsten Jeske's Safe Withdrawal Rate Series found that a rate of 3.25% to 3.50% held up even in the worst historical 50-plus-year scenarios he tested, roughly 29x to 31x expenses instead of 25x.⁴

What CoastFIRE and BaristaFIRE change about when you stop saving

CoastFIRE means front-loading contributions early enough that compound growth alone reaches your number by a normal retirement age, so you can stop adding new money and just cover current expenses from current income. BaristaFIRE means leaving a primary career but keeping part-time or lower-stress work, both for income and often for employer-sponsored health coverage, while drawing down the rest of the portfolio.

Filling the first five years from taxable and Roth contribution basis

A taxable brokerage account has no withdrawal age at all. Roth IRA contributions, not earnings, not converted amounts, can be withdrawn at any age, tax-free and penalty-free, because you already paid tax on them. This usually covers the first several years of a FIRE retiree's income, before either mechanism below is needed.Our what-is-a-Roth-IRA guide covers the full withdrawal ordering rules.

The Roth conversion ladder, briefly

The ladder moves pre-tax money from a traditional IRA into a Roth IRA in annual tranches, and each tranche's converted principal becomes penalty-free after its own five-year clock.The clocks themselves are covered in our what-is-a-Roth-IRA guide, the conversion tax mechanics and break-even math in our Roth conversion guide, and the pro-rata rule, if you hold other IRA balances, in our backdoor Roth guide. This page doesn't rebuild any of those three.

IRC Section 72(t) SEPP payments

Substantially equal periodic payments let you take structured distributions from an IRA or an employer plan before 59½ without the 10% additional tax, provided the payments continue unchanged for five years or until you reach 59½, whichever is later.¹

Three calculation methods exist: the RMD method, recalculated annually and generally the smallest payment; fixed amortization; and fixed annuitization, both of which lock in the payment schedule for the life of the plan.²For the two fixed methods, IRS Notice 2022-6 caps the interest rate you can assume at the greater of 5% or 120% of the federal mid-term rate, a floor that replaced the much lower rates used before 2022 and meaningfully raises the payment those two methods produce.

The highest-stakes fact on this page: modifying the payment schedule, or stopping it, before the later of five years or age 59½, retroactively applies the 10% penalty to every prior distribution, plus interest, back to the very first one.

Sequence of returns risk

A market downturn in the first few years of retirement does disproportionate damage, because withdrawals during a decline sell more shares to raise the same dollar amount, permanently reducing the shares left to recover later. One way this risk gets managed: holding one to three years of expenses in cash or short-duration bonds, so a downturn doesn't force equity sales at the worst possible time.

Health insurance before 65

A FIRE retiree loses employer coverage and isn't close to Medicare eligibility at 65. Affordable Care Act marketplace subsidies are based on modified adjusted gross income, and different account types count toward that income differently: a traditional IRA withdrawal counts, while drawing from taxable principal or Roth contribution basis generally doesn't. Subsidies phase out entirely above 400% of the federal poverty level, roughly $62,600 in MAGI for a single person or $128,600 for a family of four for 2026 coverage.⁵