When can I stop?

Financial Independence, Retire Early. Two answers, equally important: the dollar number you need, and the calendar year you reach it.

01Where you stand
$
$/mo
yr
%
02The goal
$
FIRE Number = expenses × 25= $1.05M
%
4% rule (Trinity Study) — portfolio lasts 30+ years 95% of the time
03 · The two answers
Your FIRE number · the target
$1.05M
= $42.0k/yr ÷ 4% withdrawal rule
You'll arrive in · the journey
24.5 years
August 2051 · age 55 · contributing $2.0k/mo
Where you are right now$50.0k of $1.05M · 4.8%
Savings rate
36%
Total contributed
$462.2k
Compound earned
$587.8k
COAST FIRE
$159.3k
The cost of waiting
Start 5 years later and you'll have $120.0k less in compound — and FIRE moves to year 29.5.
The first $50.0k took years. The last $50.0k toward FIRE takes months — because compound is doing the work, not you.
See the growth curve · milestones · sensitivity
02 · The path

From $50.0k today to $1.05M in 24.5 years

Portfolio balance · with compound vs without · today's dollars
Balance w/ compound
Contributions only
Compound gains
FIRE TARGET · $1.05MCOAST FIRE · Y4.0LeanFIRE · Y20.0FIRE · Y24.5$1.05M0k350k700k1.1M1.4Myr 091725
Milestones · stages on the way
COAST FIRE
$159.3k
You can stop contributing — compound finishes the job
LeanFIRE
$787.5k
75% of target · barebones early exit
FIRE
$1.05M
Full target · 25× expenses · 4% withdrawal
FatFIRE
$1.31M
125% of target · comfortable buffer
Year by year · today's dollars
YearPortfolioContributedCompounded% to FIRE
Y01$76.7k$73.3k$3.4k
7%
Y05$191.0k$159.9k$31.1k
18%
Y10$354.8k$254.7k$100.1k
34%
Y15$550.3k$336.5k$213.8k
52%
Y25$1.08M$467.9k$615.8k
FIRE
03 · Sensitivity

One lever at a time

ChangeFrom → toNew yearsDifferenceNote
Monthly +$500+$500/mo21.5 yr-3.0 yrSame target, faster
Return +1pp8% → 9%22.1 yr-2.4 yrAllocation tilt risk
Expenses −$5k/yr−$5,000/yr22.5 yr-2.0 yrLowers the FIRE target
Start 5 years latertoday +5yr23.3 yr-1.2 yr$120.0k less compound
WR 3% (safer)4% → 3%29.4 yr+4.9 yrTarget jumps ~33%
Return −1pp8% → 7%27.8 yr+3.3 yrStress-test scenario
COAST FIRE
$159.3k
If you stop contributing today and just let the portfolio grow at 8%, you'll still reach $1.05M by year 24.5 — but only if your balance today is at least $159.3k. That's the COAST FIRE threshold.
Tune the engine
Investment calculator
See how each input changes the growth curve — return, contribution, horizon.
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Find the $2.0k
Budget — feed the FIRE
The monthly contribution comes from a budget that names every dollar. See where it can come from.
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