Money

Barista FIRE calculator

See how much smaller your retirement target gets when a part-time job covers part of your bills, and how soon you could make the switch.

Your numbers

$
In today's dollars.
$
After tax, what the part-time job will bring in.
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$
%
Before inflation.
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%
years

Results

Not financial advice. This calculator gives estimates based on the assumptions you enter. Investment returns are not guaranteed. For decisions about your own money, consider speaking with a qualified financial professional.

What Barista FIRE means

Barista FIRE is a halfway house between full-time work and full early retirement. Instead of saving enough to cover every dollar of your spending, you save enough to cover part of it, then leave your full-time career and earn the rest from lower-stress, part-time work. The name comes from the idea of working a few shifts at a coffee shop, partly for the paycheck and partly for benefits, but any flexible job counts: freelancing, seasonal work, consulting or tutoring.

Because the part-time income replaces some withdrawals, your target portfolio can be much smaller than a full FIRE number, which can bring your exit from full-time work forward by years.

How the calculator works

  1. It subtracts your yearly part-time income from your yearly spending to find the gap your investments must fill.
  2. It divides that gap by your withdrawal rate. That is your Barista FIRE number. It also shows your full FIRE number (spending ÷ withdrawal rate) for comparison.
  3. Using an after-inflation return, it adds your monthly investment and growth month by month until your balance reaches the Barista number, and does the same for the full number.

The formula

Barista FIRE number = (annual spending − annual part-time income) ÷ withdrawal rate Full FIRE number = annual spending ÷ withdrawal rate Real return = (1 + nominal return) ÷ (1 + inflation) − 1

Worked example

Priya is 35, spends $50,000 a year and could earn $20,000 a year after tax from part-time design work. Her portfolio only needs to cover $30,000. At a 4% withdrawal rate her Barista FIRE number is $30,000 ÷ 0.04 = $750,000, compared with $1,250,000 for full FIRE.

She has $150,000 invested and adds $1,500 a month. With 7% returns and 3% inflation she reaches $750,000 in about 17 years and 9 months, around age 53. Reaching full FIRE on the same plan would take about 26 years and 9 months.

Things to plan for

  • Health insurance. In the US this is often the deciding factor. Some part-time employers offer benefits, and marketplace plans are another option before Medicare at 65. Include premiums in your spending.
  • How long you will work part-time. The calculator assumes part-time income continues for as long as you need it. If you plan to stop at a certain age, you will need a larger portfolio by then, so check your full FIRE number too.
  • Keep saving if you can. Even small contributions from part-time pay, or simply not withdrawing in good market years, can let your portfolio keep growing toward full independence.
  • Social Security. Future benefits can replace part-time income later. Our Social Security break-even calculator helps you think about when to claim.

Barista FIRE is about flexibility, not maximum wealth. The number is a planning target. Revisit it every year as your spending, income and investments change.

Frequently asked questions

What is the difference between Barista FIRE and Coast FIRE?

With Coast FIRE you keep working enough to pay all current bills but stop saving for retirement, because your investments will grow to a full nest egg on their own. With Barista FIRE you start withdrawing from your portfolio now, and part-time income covers the rest of your spending.

Should part-time income be before or after tax?

Use the amount you actually take home after tax, because that is what is available to cover your spending.

Is the 4% rule safe for Barista FIRE?

It is a common starting point. Because part-time income reduces how much you withdraw, many people feel comfortable with 4%, but using 3.5% adds a margin of safety if you retire early and plan for a long horizon.

What if my part-time income covers all my spending?

Then your Barista FIRE number is zero: you could leave full-time work now. In practice most people still want a cushion for emergencies and for the years when they stop working entirely.

Does this include Social Security?

No. If you expect Social Security or a pension later, your portfolio may only need to bridge the years until it starts, which could lower your target further.

Last reviewed November 2026. Spotted an error? Tell us.