FIRE number for $300k a year
To reach FIRE — financial independence, retire early — on $300,000/year, your number is about $9,000,000 if you retire at 45. That's roughly 30× your spending, above the classic 25× because early retirement means a longer horizon and withdrawals get taxed.
FIRE number for $300k/year, by retirement age
The earlier you retire, the bigger the number — the money must last longer and Social Security is further away. Assuming 6% return, 3% inflation, no Social Security:
| Retire at | Horizon | You need about |
|---|---|---|
| 40 | 55 yrs | $9,400,000 |
| 45 | 50 yrs | $9,000,000 |
| 50 | 45 yrs | $8,560,000 |
| 55 | 40 yrs | $8,030,000 |
Getting there: the savings rate that matters
Your FIRE number tells you the target; your savings rate tells you how fast you'll reach it. The core FIRE insight is that a high savings rate does double duty — it builds the nest egg faster and proves you can live on less, which shrinks the number you need. Coast and Barista FIRE are milestones along the way: once you've saved enough that compounding alone will get you to the target, you can ease off.
Early retirement makes pre-Medicare healthcare, sequence-of-returns risk, and taxes the dominant challenges. Model your accounts, savings rate, and Social Security in the calculator for a personalized number and date.
When drawdown design, and 'enough,' outrank a bigger number
At Fat-FIRE spending, how you hold and unwind the money starts to matter as much as how much you have. Asset location — placing tax-inefficient holdings like bonds in tax-deferred accounts, the highest-growth assets in a Roth, and tax-efficient stock funds in taxable — quietly raises your after-tax return without changing what you own. And the low-income years between an early retirement and the start of Social Security or required distributions are prime territory for Roth conversions, moving money at a lower bracket than it would face later.
These levers compound over a long retirement, and unlike chasing a larger balance, they cost no extra working years.
Which raises the harder question. Because the target is a multiple of spending, every increment of lifestyle you add demands a large multiple of extra savings — and buying it means more years at the desk. It is worth asking honestly whether retiring sooner on a slightly leaner number beats grinding toward an ever-bigger one that mostly funds a lifestyle you are too busy to enjoy.
Common questions
What is the FIRE number for $300,000 a year?
About $9,000,000 retiring at 45 — roughly 30× spending. Retiring at 55 instead needs less, because the money has fewer years to cover and Social Security is closer.
Is $300k/year enough to retire early on?
It can be, with about $9,000,000 invested at 45. Whether it's "enough" depends on your lifestyle, healthcare costs before Medicare, and whether you'll have other income like a pension or part-time work.
How is a FIRE number different from a regular retirement number?
The math is the same, but FIRE targets an earlier retirement, so the horizon is longer and the multiple of spending you need is higher than the classic 25× used for a retirement starting at 65.