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Calculate Barista FIRE: part-time covers expenses while savings grow to full FIRE — see Barista number and years.
Calculate Barista FIRE: part-time covers expenses while savings grow to full FIRE — see Barista number and years.
Enter values above and click Calculate — results will appear here with the formula explained.
Barista FIRE covers the gap between annual expenses and part-time income with portfolio withdrawals. If part-time covers half of $40,000 expenses, only $20,000 must come from investments — needing $500,000 at a 4% withdrawal rate instead of $1,000,000 for full FIRE. Every dollar of enjoyable part-time income roughly erases $25 of required portfolio.
The 4% rule anchors the number: gap divided by 0.04. At a $25,000 gap that's $625,000; at $10,000 gap, $250,000. Conservative planners use 3.5% ($714,000 and $286,000 respectively) to survive poor sequences. The withdrawal rate assumption moves the target more than return assumptions do — stress-test both.
Part-time is often barista-level low stress, but any enjoyable work counts: seasonal tax prep, freelance consulting two days a week, national-park summers. The work must be work you'd do anyway — Barista FIRE fails when the 'fun job' becomes a resented grind, which is why Coast FIRE (no work, just waiting) suits different temperaments.
Barista versus Coast versus Lean versus full FIRE: Barista needs part-time income plus a mid-size portfolio now; Coast needs a portfolio that compounds untouched until 60–65 with zero withdrawals; Lean needs a smaller portfolio against permanently lower expenses; full FIRE needs 25× full expenses and no work ever. Barista optimizes for earliest exit from full-time work, Coast for zero work with patience.
Health insurance is Barista's hidden superpower: part-time roles at qualifying employers (20+ hours at many large chains and public employers) provide coverage that early retirees otherwise buy at $500–1,500/month on exchanges. That single benefit can be worth $100,000+ of portfolio equivalent — always price insurance before comparing Barista against full FIRE.
Years-to-Barista math: with $300,000 saved, 7% real returns and no new contributions, a $625,000 target takes about 11 years (ln(625/300)/ln(1.07)). Adding $10,000 yearly savings cuts it to roughly 8. Part-time income during the glide path accelerates doubly — covering expenses while savings compound untouched.
Calculate Barista FIRE: part-time covers expenses while savings grow to full FIRE — see Barista number and years. Formula: Gap = expenses - partTime. Example: With $40k expenses and $15k part-time: gap $25k, Barista number $625k at 4%.
Barista FIRE covers the gap between annual expenses and part-time income with portfolio withdrawals. If part-time covers half of $40,000 expenses, only $20,000 must come from investments — needing $500,000 at a 4% withdrawal rate instead of $1,000,000 for full FIRE. Every dollar of enjoyable part-time income roughly erases $25 of required portfolio.
The 4% rule anchors the number: gap divided by 0.04. At a $25,000 gap that's $625,000; at $10,000 gap, $250,000. Conservative planners use 3.5% ($714,000 and $286,000 respectively) to survive poor sequences. The withdrawal rate assumption moves the target more than return assumptions do — stress-test both.
Part-time is often barista-level low stress, but any enjoyable work counts: seasonal tax prep, freelance consulting two days a week, national-park summers. The work must be work you'd do anyway — Barista FIRE fails when the 'fun job' becomes a resented grind, which is why Coast FIRE (no work, just waiting) suits different temperaments.
Barista versus Coast versus Lean versus full FIRE: Barista needs part-time income plus a mid-size portfolio now; Coast needs a portfolio that compounds untouched until 60–65 with zero withdrawals; Lean needs a smaller portfolio against permanently lower expenses; full FIRE needs 25× full expenses and no work ever. Barista optimizes for earliest exit from full-time work, Coast for zero work with patience.
Health insurance is Barista's hidden superpower: part-time roles at qualifying employers (20+ hours at many large chains and public employers) provide coverage that early retirees otherwise buy at $500–1,500/month on exchanges. That single benefit can be worth $100,000+ of portfolio equivalent — always price insurance before comparing Barista against full FIRE.
Years-to-Barista math: with $300,000 saved, 7% real returns and no new contributions, a $625,000 target takes about 11 years (ln(625/300)/ln(1.07)). Adding $10,000 yearly savings cuts it to roughly 8. Part-time income during the glide path accelerates doubly — covering expenses while savings compound untouched.
With $40k expenses and $15k part-time: gap $25k, Barista number $625k at 4%. With $300k saved at 7% real returns, about 11 years with no new savings — or 8 years adding $10k yearly.
Formulas are standard public references (see our methodology). External standards are cited in the text where they apply.
Last reviewed: September 2026 · Report an error