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FIRE Calculator Pro
Free · No sign-up · Updated November 11, 2026

Barista FIRE Calculator

Barista FIRE means leaving full-time work once your investments can cover part of your spending, while part-time income covers the rest until you fully retire. Enter your numbers to see your Barista FIRE number, the age you could go part-time, and how much part-time pay you'd need to quit today.

Your numbers

About you
yrs old
yrs old

The day you leave full-time work and start drawing on your portfolio.

$

401(k), IRA, HSA and taxable brokerage. Not your home or emergency fund.

$
$

Today's dollars. Include health insurance premiums until Medicare at 65 if your part-time job won't cover you.

Part-time work
$

After tax, in today's dollars. Benefits like health insurance are worth more than they look.

yrs old

After this age the portfolio, plus any Social Security or pension, pays for everything.

Social Security & pension

Guaranteed income lowers the portfolio you need. Get your personal estimate at ssa.gov/myaccount.

$

The average retiree benefit is $2,170 a month ($26,040 a year) from January 2027.

yrs old

Full retirement age is 67 if you were born in 1960 or later. Claiming at 62 cuts the benefit 30%; waiting to 70 adds 24%.

%

Worried about future cuts? Many planners count 75%-80% to be safe.

Assumptions

Real return used: 3.79% a year after inflation and fees. All results are in today's money.

%

Nominal, before inflation. The S&P 500 returned 10.0% a year from 1928-2025; Vanguard's 10-year forecast for US stocks is 4.8%-6.8%.

%

US inflation averaged about 3.0% a year from 1928-2025, and 3.7% in the 12 months to September 2026.

%

Fund expense ratios plus any advisory fee. Broad index funds often cost 0.03%-0.20%.

%

4% is the classic rule for 30 years. For 40-60 year early retirements, research points to 3.25%-3.5%.

yrs old

Planning to 95 or later protects against outliving your money.

%

Used by the risk tests. The rest is assumed to be 10-year US Treasuries, rebalanced yearly.

Risk test returns

Replays actual 1928-2025 returns (minus fees), like the Trinity study and FIRECalc. Past returns were higher than most forecasts.

Your Barista FIRE number at 45

$671,090

That's $361,394 less than the $1,032,483 you'd need to stop working entirely at 45, because $30,000 a year of part-time pay covers part of your spending until 60. Investing $2,500 a month, you're on track to have $754,270 by 45, and could go part-time as early as age 44.
Projected at 45: $754,270 of $671,090112%

Full FIRE number at 45

$1,032,483

To stop working completely

Barista FIRE age

Age 44

6 years of saving

Part-time pay needed if you quit today

$44,529/yr

Until 60, with $400,000 invested

Part-time years

15 years

Age 45 to 60

Part-time income needed by the age you go part-time

If you keep saving until each age, then work part-time until 60. Today's dollars, after your other income.

  • Part-time income needed per year
  • Your planned part-time income
  • You reach Barista FIRE
Your portfolio: saving, part-time, then fully retired

Investing $2,500/month until 45, then part-time pay counts as other income until 60. Today's dollars.

  • Projected portfolio
  • Barista FIRE number ($671K)

What if markets slump after you go part-time?

Markets don't deliver an average return every year. A crash right after you retire can sink a plan that looks fine on average. These two tests use 98 years of US stock, bond and inflation data.

Monte Carlo success rate

85%

2,000 simulated lifetimes to age 95

Historical success rate

92%

49 start years tested. Worst: retiring in 1966 ran out after 31 years.

Range of outcomes (Monte Carlo)

2,000 simulations, each year drawn from a random year of US market history (1928-2025). Today's money.

  • Middle 80% of outcomes
  • Middle 50%
  • Median
The luckiest 10% of outcomes extend above the top of the chart. Switch to Table to see every value.
Every 50-year retirement since 1928

Each bar is a retirement that started in that year and replayed actual US returns and inflation. Today's money.

  • Money left at the end
  • Ran out of money

How this is calculated

From 45 to 66 your portfolio pays the gap between $50,000 of spending and your part-time and other income. Funding those years costs $435,446 at 45. From 67 it covers $26,000 a year, worth $235,643 at 45. Every year is valued at 3.33%, the real rate at which a 4% withdrawal lasts exactly 50 years, so the part-time years get the same safety margin as your withdrawal rate. Your expected return doesn't enter this number. Together: $671,090. The part-time income needed is solved by trying amounts until the number matches your balance.

How to use this Barista FIRE calculator

  1. Enter your age, the age you want to go part-time, what you have invested and what you invest each month until then.
  2. Enter your yearly spending once you go part-time, your expected part-time income (after tax), and the age you'll stop working.
  3. Turn on Social Security or a pension if you expect one, and review the return, inflation and withdrawal-rate assumptions.

Results update as you type. The chart of part-time income by age shows the trade-off: work full-time a little longer, and the part-time job can pay less. Copy the share link to save your scenario, or download the year-by-year projection as a CSV.

How to read the results

  • Barista FIRE number: the portfolio you need on the day you go part-time. Compare it with the full FIRE number next to it; the difference is what your part-time years are worth.
  • Barista FIRE age: the first age at which your projected balance, still saving at your current pace, covers the Barista number for that age. If it says "not before" your end age, raise the part-time income, push the end age later or save more first.
  • Part-time pay needed if you quit today: the yearly after-tax income that would make today's balance enough. It is the most useful number if you are deciding whether a specific job offer is enough.

How do you calculate a Barista FIRE number?

Your Barista FIRE number is the portfolio you need on the day you go part-time. It has two parts: the money to fill the gap during your part-time years, and the money to fund full retirement after that.

Barista FIRE number = Σ (spending − part-time pay − other income) in each retirement year, valued at the planning rate implied by your withdrawal rate

With flat spending and no other income, this is exactly the classic FIRE number: 25 times spending at a 4% withdrawal rate, the rule popularized by the FIRE movement[1] and based on William Bengen's 1994 research[2]. Part-time pay and Social Security lower what the portfolio must pay in the years they cover. Valuing every year at the same planning rate gives those years the same safety margin as your withdrawal rate. Your expected return doesn't change the number; it only changes how fast you get there and how the plan fares in the risk tests.

Worked example

Sam wants to go part-time at 45, spend $50,000 a year, earn $30,000 a year part-time until 60, and claim $24,000 of Social Security at 67, with the money lasting to 95. At a 4% withdrawal rate over those 50 years, every year is valued at a planning rate of 3.33%: the real rate at which 4% a year lasts exactly 50 years.

  • Ages 45-59: the portfolio pays $50,000 − $30,000 = $20,000 a year. Funding those 15 years costs $240,929 at 45.
  • Ages 60-94: the portfolio pays the full $50,000 until Social Security starts at 67, then $26,000 a year. Funding those years costs $430,160 at 45.
  • Barista FIRE number: $671,090, versus $1,032,483 to stop working completely at 45.

Part-time work saves Sam $361,394. Without Social Security, the Barista number would be $888,606.

Why not just divide the gap by 4%?

The shortcut you see on forums, (spending − part-time pay) ÷ 4%, gives Sam $500,000. That treats $30,000 of part-time pay as if it lasted for life. It doesn't: once the job stops at 60, the portfolio has to carry the whole budget for seven years until Social Security begins, and most of it after that. The year-by-year number above, $671,090, is $171,090 higher. The shortcut only works if you plan to keep the part-time income until the end of your life, which few people do.

Barista FIRE number by part-time income

Two inputs move the number most: how much you earn part-time and how long you keep earning it. The table holds Sam's other assumptions fixed ($50,000 of spending from 45, $24,000 of Social Security from 67, a 4% withdrawal rate, money lasting to 95) and varies both.

Portfolio needed at 45 to go part-time (our calculation, today's dollars)
Part-time pay per yearWork until 55Work until 60Work until 65
$10,000$945,805$912,019$883,336
$20,000$859,127$791,554$734,189
$30,000$772,449$671,090$585,042
$40,000$685,770$550,625$435,895

Read across a row to see what staying in the part-time job longer is worth; read down a column to see what a better-paid role is worth. Both matter, but the combination is what does the work: $40,000 a year until 65 needs $435,895, while $10,000 a year until 55 still needs $945,805, not far below the $1,032,483 for full retirement.

How much is part-time income worth?

A useful way to think about a job offer is to price it in portfolio dollars. For Sam, here is what $10,000 a year of part-time pay, starting at 45, takes off the number, depending on when it stops:

  • Until 55: $86,678
  • Until 60: $120,465
  • Until 65: $149,147
  • Until 67: $159,368

For comparison, $10,000 a year that lasted for life would be worth $250,000 at a 4% withdrawal rate. Each extra year of part-time work is worth less than the one before it, because it is further away, but the value never falls to zero. If you are choosing between two jobs, multiply the difference in their after-tax pay by these figures to see which one moves your number more.

What assumptions does the calculator use?

Everything is in today's dollars. We convert your expected return to a real return with the Fisher equation, (1 + return − fees) ÷ (1 + inflation) − 1.

  • Return: 7% default. The S&P 500 returned 10.0% a year from 1928 to 2025[4], while Vanguard's 10-year forecast for US stocks is 4.8%-6.8%[5].
  • Inflation: 3% default. Prices rose 3.7% in the 12 months to September 2026[6].
  • Withdrawal rate: 4% default. Barista FIRE often starts in your 40s, so the money may need to last 50 years. For retirements that long, research points to 3.25%-3.5%[3]. At 3.5%, Sam's number rises from $671,090 to $773,290.

Part-time pay should be entered after tax. Surplus pay in a year when it exceeds spending is reinvested. See the methodology for timing conventions.

How long do you need to keep working part-time?

Longer than most people expect, because every extra year of part-time pay is a year the portfolio doesn't fund. In Sam's example the Barista FIRE number is $772,449 if part-time work stops at 55, $671,090 at 60, and $585,042 at 65.

Stopping at 65 also lines up with Medicare, which starts at 65 for people who meet the citizenship or residency rules[19]. If you expect to burn out sooner, set the end age lower in the calculator and see what it costs. A plan that only works if you keep a physical job into your late 60s deserves a second look.

How do you pay for health insurance before Medicare?

This is the biggest practical question in Barista FIRE. In March 2026, 89% of full-time workers but only 23% of part-time workers had access to employer medical benefits[14], so a part-time job with health coverage is the exception, not the rule. Your realistic options:

  • Cut hours at your current employer. If your employer has 20 or more employees, federal COBRA rules apply[15]. A reduction in hours is a qualifying event, so you can keep the same plan for up to 18 months, but you may pay up to 102% of its full cost[16].
  • Buy a Marketplace plan. Retiring or losing job-based coverage before 65 qualifies you for a Special Enrollment Period on the ACA Marketplace[7].
  • Choose a part-time role that includes benefits. Check the hours threshold on the employer's own benefits page before you count on it.

Plan carefully around the subsidy cliff. The enhanced ACA subsidies expired at the end of 2025, so the cliff at 400% of the federal poverty level is back[8], and for 2027 coverage households above it still get no premium tax credit[18]. Marketplace savings for a year are based on the previous year's poverty guidelines; the 2026 guidelines are $15,960 for one person and $21,640 for two[17], which puts 400% at $63,840 and $86,560. Part-time pay and the taxable part of your portfolio withdrawals both count toward that income, so build the full premium into your spending, or manage your income to stay below the line.

Should Barista FIRE include Social Security?

Yes, if you're reasonably confident of a benefit. Full retirement age is 67 for anyone born in 1960 or later; claiming at 62 cuts the benefit by 30% and waiting until 70 adds 24%[9]. Get your personal estimate from the Social Security Administration[10]. Your benefit is based on your highest 35 years of indexed earnings, and missing years count as zero[12], so part-time years help most if you have fewer than 35 years of full-time work.

Be careful about claiming early while you still work. Below full retirement age, the earnings test withholds $1 of benefits for every $2 you earn above $24,480 (2026)[13]. If Sam claimed at 63 while earning $30,000, $2,760 of that year's benefits would be withheld. The money isn't lost, since the benefit is recomputed at full retirement age, but it won't arrive when the plan expects it. The simplest rule: in this calculator, start Social Security after the part-time job ends, or at full retirement age.

The bigger risk is the market. A crash early in your part-time years matters most, because the first decade of returns largely sets how much you can safely withdraw[11]. The risk section tests your plan against 2,000 simulated markets and every start year since 1928. If you want a cushion, work full-time a year or two longer or keep the part-time job a few years more. For the full background, read what Barista FIRE is and how it works.

Common Barista FIRE calculator mistakes

  • Assuming today's hourly rate lasts. Part-time and freelance rates can fall in a recession, exactly when your portfolio is down too. Enter the pay you would accept in a weak year, not your best-case rate.
  • Leaving out the end age. Part-time work that "lasts as long as I like it" is how the shortcut formula understates the number. Pick a realistic end age, then test a few years earlier.
  • Forgetting health insurance. If the job has no benefits, the premium belongs in your spending until Medicare.
  • Using a 30-year withdrawal rate for a 50-year plan. The 4% rule was built for 30 years; see the safe withdrawal rate calculator for longer horizons.
  • Confusing Barista with Coast FIRE. If your part-time pay covers all your bills and you won't touch the portfolio, use the Coast FIRE calculator instead; our Coast FIRE vs Barista FIRE guide compares the two.

Barista FIRE vs other types of FIRE

TypeAnnual spendingWhat it means
Lean FIREUnder about $40,000Very frugal budget, often in a low-cost area
FIREAbout $40,000-$80,000Portfolio covers a typical lifestyle
Chubby FIREAbout $80,000-$120,000Comfortable, some luxuries
Fat FIRE$120,000+No meaningful budget constraints
Coast FIREAnySaved enough to stop investing; work covers current bills
Barista FIREAnyPart-time income covers part of spending

Spending bands are this site's rough conventions, not official definitions; they shift with inflation and cost of living.

Frequently asked questions

How to calculate barista FIRE?

Start from the full FIRE number (spending ÷ withdrawal rate) and subtract the value of your part-time pay. For each year you'll work part-time, the portfolio only needs to cover spending minus part-time pay and any other income. The calculator values every year at the rate implied by your withdrawal rate, so the result keeps the same safety margin as a plain FIRE number.

Can I barista FIRE with 500K?

Often, yes, if you're willing to work part-time for a while. With $500,000 at 45, spending $40,000 a year and a $24,000 Social Security benefit from 67, you'd need about $18,940 a year of part-time pay until 65 (our calculation, 4% withdrawal rate, money lasting to 95). Without Social Security that rises to $33,524. Stopping work entirely would take $782,483 with Social Security, or $1,000,000 without it.

What is a good barista FIRE number?

A good number is one that still works if markets disappoint and the part-time job ends early. In practice that means a Monte Carlo and historical success rate of 90% or more in the risk section above, part-time income you could earn even in a weak job market, and health insurance planned until Medicare at 65. Aim for the number that works with a slightly lower part-time income than you expect to earn.

What's the difference between coast FIRE and barista FIRE?

With Coast FIRE you stop saving but don't touch your portfolio: work pays all of today's bills while investments grow. With Barista FIRE you start withdrawing now, and part-time pay covers only part of your spending. Barista FIRE needs a bigger portfolio but lets you work less. Our Coast FIRE calculator handles the first case.

How much money do I need for barista FIRE?

It depends most on your part-time income and how long you'll earn it. For someone going part-time at 45, spending $50,000 a year until working stops at 60, with $24,000 of Social Security from 67 (our calculation):

  • $10,000 a year of part-time pay: $912,019
  • $20,000 a year of part-time pay: $791,554
  • $30,000 a year of part-time pay: $671,090
  • $40,000 a year of part-time pay: $550,625

Quitting completely at 45 would need $1,032,483.

Should I enter part-time income before or after tax?

After tax. The calculator subtracts part-time income from your spending, so it needs the amount you can actually spend. If your withdrawals are taxable too, include that tax in your spending figure.

What is barista coast FIRE?

It's a mix of the two ideas: part-time pay covers all of your current bills, so you don't withdraw anything, while your portfolio grows untouched until full retirement. That is Coast FIRE with a part-time job, and the Coast FIRE calculator models it. Our guide to Coast FIRE vs Barista FIRE shows when each one fits.

Sources

Figures checked against each source on November 11, 2026.

  1. [1]What is the FIRE movement? · CNBC Select, September 24, 2024.The FIRE target of 25x annual expenses and definitions of Lean, Fat, Barista and Coast FIRE.
  2. [2]Determining Withdrawal Rates Using Historical Data · William P. Bengen, Journal of Financial Planning, October 1994.Origin of the 4% rule: a 4% inflation-adjusted first-year withdrawal lasted at least 33 years in every historical period tested. Used Ibbotson's 1992 SBBI data from 1926 on, illustrated with 50% common stocks and 50% intermediate-term Treasuries; a 4% first-year withdrawal, raised for inflation, never exhausted a portfolio before 33 years, while 4.25% could fail in 28 years; 3% (and about 3.5%) never lasted less than 50 years; 5% is 'risky' and 6% or more is 'gambling'; recommended 50%-75% stocks; assumed tax-deferred accounts; a 1929 retiree who cut withdrawals 5% had 20% more wealth by 1949.
  3. [3]The Safe Withdrawal Rate Series · Karsten Jeske, Early Retirement Now, 2016-2025.The series models very long early retirements ("a 50 or even 60-year horizon"); withdrawal rates of 3.25-3.50% would have survived even the most catastrophic historical market conditions, and Part 3 argues about 3.25% is needed for low failure risk over 60 years when valuations are high.
  4. [4]Historical Returns on Stocks, Bonds and Bills: 1928-2025 · Aswath Damodaran, NYU Stern School of Business, Updated January 5, 2026.Annual S&P 500, 10-year Treasury and CPI data used by our Monte Carlo and historical backtests (S&P 500: 10.02% a year nominal, 1928-2025).
  5. [5]Vanguard economic and market outlook: 10-year return forecasts · Vanguard, October 21, 2026 (as of September 30, 2026).10-year annualized nominal forecasts: US stocks 4.8%-6.8%, developed ex-US stocks 5.3%-7.3%, US bonds 5.1%-6.1%.
  6. [6]Consumer Price Index news release, September 2026 · U.S. Bureau of Labor Statistics, October 14, 2026.CPI-U rose 3.7% over the 12 months to September 2026.
  7. [7]Health coverage for retirees · HealthCare.gov, Ongoing.Retiring before 65 qualifies you for a Special Enrollment Period in the ACA Marketplace.
  8. [8]How will the loss of enhanced premium tax credits affect older adults? · KFF, February 26, 2026.Enhanced ACA subsidies expired at the end of 2025, so the 400% of poverty-level subsidy cliff is back for 2026. With the enhanced credits expired, income at 401% of poverty ($62,757 for one person in 2026) gets no subsidy. A 60-year-old earning $65,000 (415% of poverty) faces a national average benchmark silver premium of $15,914 a year in 2026, $10,389 more than under the enhanced credits. The enhanced ACA premium tax credits expired on December 31, 2025, so enrollees above 400% of the poverty level get no assistance; a 60-year-old earning $65,000 (415% of poverty) pays $10,389 more a year toward a benchmark premium. With enhanced credits expired, enrollees above 400% of poverty get no premium tax credit in 2026; unsubsidized 2026 national average premiums for a 60-year-old are $11,625 (lowest-cost bronze) and $15,914 (benchmark silver); Marketplace premiums for older adults can be up to three times those of younger enrollees.
  9. [9]Social Security Retirement Benefits: Claiming Ages (R47151) · Congressional Research Service, June 8, 2022.Full retirement age is 67 for people born in 1960 or later; claiming at 62 cuts benefits 30%; delayed credits add 8% a year up to 70 (24% more at 70 when full retirement age is 67); workers with 35 or more years of covered earnings lose little of their basic benefit by stopping work early (p. 24). Pages 5-6: someone entitled to their own benefit and a spousal or survivor benefit in effect receives the higher of the two; at full retirement age a spouse can receive 50% of the worker's benefit, with no delayed retirement credits; a widow(er) claiming at full retirement age or later can receive 100% of the deceased worker's benefit. At full retirement age a spouse can receive 50% of the retired worker's benefit, reduced if claimed earlier (32.5% at 62 when FRA is 67), with no delayed retirement credits (p. 6); a widow(er) claiming at FRA or later can receive 100% of the deceased worker's benefit (p. 7); a dually entitled person receives the higher of their own and the spousal or survivor benefit (p. 6).
  10. [10]Benefit calculators and my Social Security · Social Security Administration, Ongoing.Where to get your personal benefit estimate to enter in our calculators.
  11. [11]Understanding sequence of return risk and safe withdrawal rates · Michael Kitces, Kitces.com, October 1, 2014.Real returns in the first decade of retirement largely determine the safe withdrawal rate (correlation about 0.79).
  12. [12]Social Security: Benefit Calculation Overview (IF11747) · Congressional Research Service, Updated January 26, 2026.A retired worker's benefit is based on the average of their highest 35 years of wage-indexed earnings; if they worked fewer than 35 years in covered employment, the missing years count as zero earnings. The benefit is based on the highest 35 years of wage-indexed earnings divided by 420 months (AIME); if you worked fewer than 35 years under Social Security, the missing years count as zero earnings. AIME is the average of the highest 35 years of indexed earnings divided by 12; with fewer than 35 years of covered work the missing years count as zero. The PIA formula applies 90%, 32% and 15% across bend points of $1,286 and $7,749 (2026), a progressive replacement rate.
  13. [13]Social Security Retirement Earnings Test Overview (IF12014) · Congressional Research Service, Updated March 2, 2026.Below full retirement age, $1 of benefits is withheld for every $2 of earnings above $24,480 in 2026; in the year you reach full retirement age, $1 for every $3 above $65,160; the benefit is recomputed at full retirement age to credit withheld months; the test no longer applies from the month you reach full retirement age.
  14. [14]Employee Benefits in the United States, March 2026 · US Bureau of Labor Statistics, September 25, 2026.In March 2026, 89% of full-time civilian workers and 23% of part-time workers had access to employer medical care benefits.
  15. [15]FAQs on COBRA continuation health coverage for workers · U.S. Department of Labor, Employee Benefits Security Administration, Checked November 11, 2026.After leaving a job (other than for gross misconduct), COBRA continuation coverage lasts up to 18 months; it applies to employers with 20 or more employees.
  16. [16]An Employee's Guide to Health Benefits Under COBRA · US Department of Labor, Employee Benefits Security Administration, Checked November 11, 2026.A reduction in work hours is a COBRA qualifying event; after termination or reduced hours, continuation coverage lasts up to 18 months; the premium cannot exceed 102% of the plan's total cost.
  17. [17]Federal poverty level (FPL) · HealthCare.gov (Centers for Medicare & Medicaid Services), Checked November 11, 2026.Poverty guidelines: $15,650 for one person and $21,150 for two in 2025; $15,960 and $21,640 in 2026. The previous year's guidelines are used for the next year's Marketplace savings; incomes between 100% and 400% of the poverty level qualify for the premium tax credit. 2026 poverty guidelines: $15,960 for one person and $21,640 for two; incomes between 100% and 400% of the poverty level qualify for the premium tax credit in all states; below 138% you may qualify for Medicaid if your state expanded it; below 100% you probably won't qualify for Marketplace savings. 2026 Marketplace savings are based on the 2025 poverty guidelines: $15,650 for one person and $21,150 for two.
  18. [18]9 things to watch for the 2027 ACA open enrollment period · KFF, November 6, 2026.For 2027 coverage, people with incomes above 400% of the poverty level still get no premium tax credit; open enrollment started November 1, 2026 in most states; average benchmark silver premiums rise 13%.
  19. [19]Get started with Medicare · Medicare.gov (Centers for Medicare & Medicaid Services), Ongoing.Medicare is health insurance for people 65 or older who meet citizenship or residency requirements.

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