When can you stop billing?
Enter your income, expenses, and investments. See exactly when your portfolio can replace your paycheck. Accounts for taxes, inflation, and market volatility.
FIRE in
32years
After your target of age 50. Save more or spend less.
FIRE Number
$1,235,294
Monthly Savings
$1,060
23.2% rate
Portfolio at 50
$581,560
After-Tax Retirement
$19,773
$1,648/mo after 15% tax
Portfolio Projection
30-Year Survival
PossibleMonte Carlo: 1,000 trials, 15% annual volatility, 30-year horizon
FIRE Types
Lean FIRE
70% of expenses
$864,706
26y
Regular FIRE
100% of expenses
$1,235,294
32y
Fat FIRE
150% of expenses
$1,852,941
39y
Coast FIRE
Stop saving, let compound interest work
$593,663
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How FIRE works
FIRE number = annual expenses / safe withdrawal rate. Spend $36k/year at 4% SWR? You need $900k. Done.
Safe withdrawal rate comes from the Trinity Study. At 4%, your portfolio historically survives 30+ years. Lower to 3.5% for safety. Raise to 4.5% if you'll keep earning some income.
Inflation-adjusted returns. This calculator uses real returns (nominal minus inflation) so every number reflects today's purchasing power.
Monte Carlo simulation runs 1,000 trials with 15% annual volatility to estimate the probability your portfolio survives 30 years of withdrawals.
Tips for freelancers
Track every hour. A 15-min daily oversight at $150/hr costs $9,375/year. Over 20 years compounding: $384k lost.
Raise your rate first. A $25/hr increase on 30 billable hours/week = $39k more per year in savings.
Automate invoicing. Late invoices delay cash flow. Faster collection = earlier compounding.
Know your utilization rate. Most freelancers bill 60-70% of hours. Every 5% improvement = thousands more per year.
Every unbilled hour delays FIRE
Track your billable hours with Miru
15 minutes of unbilled time per day = $9,375/year at $150/hr. Over 20 years compounding, that's $384k you'll never see. Track every hour. Bill every hour.
$1/member/month. Free for solo.