Work out how much you need for Barista FIRE, the portfolio that covers your costs when part-time work pays for some of them, and roughly how many years of saving it takes to get there. It suits anyone in the financial independence community who would rather downshift to an easier job than wait for full early retirement.
Uses today’s dollars: the real return is after inflation. Contributions are added once a year with annual compounding. If you leave the withdrawal rate blank, the calculator uses 4%; a blank portfolio or contribution counts as 0. Taxes, health insurance and withdrawal rules vary by country and year. Educational estimate, not personal financial advice.
How Much Do I Need for Barista FIRE?
You need about 25 times the yearly gap between your spending and your after-tax part-time pay, at a 4% withdrawal rate. Spend $40,000, earn $20,000 part time, and the gap is $20,000, so your number is $500,000. That is half the $1,000,000 full FIRE needs at the same rate.
| Yearly gap | Number at 4% | Number at 3.5% |
|---|---|---|
| $10,000 | $250,000 | $285,714 |
| $15,000 | $375,000 | $428,571 |
| $20,000 | $500,000 | $571,429 |
| $25,000 | $625,000 | $714,286 |
| $30,000 | $750,000 | $857,143 |
How to Calculate Your Barista FIRE Number
Subtract part-time income from spending, then divide by your withdrawal rate. Barista FIRE is a halfway house between full-time work and full financial independence: investments pay for part of your spending and a lower-stress job pays for the rest, often with employer health cover as a bonus. The tool then projects your savings forward, adding contributions each year, to estimate when you can switch. It also shows the full FIRE number so you can see how much sooner the part-time route arrives.
Formula: Barista FIRE number = (Annual spending − Part-time income) ÷ Withdrawal rate. Full FIRE number = Annual spending ÷ Withdrawal rate. Years to target n solves Portfolio × (1 + r)^n + Contributions × ((1 + r)^n − 1) ÷ r = Target, so n = ln((Target × r + Contributions) ÷ (Portfolio × r + Contributions)) ÷ ln(1 + r).
- Find the gap: $40,000 spending − $20,000 part-time pay = $20,000.
- Divide by the withdrawal rate: $20,000 ÷ 0.04 = $500,000.
- Project your savings: $150,000 invested plus $25,000 a year at a 5% real return.
- Solve for years: about 8.8 years to reach $500,000, against 17.1 for full FIRE.
- Annual spending in retirement: what you expect to spend each year once you downshift, in today’s dollars.
- Part-time income (after tax): take-home pay from the lighter job, per year.
- Safe withdrawal rate: the share of the portfolio you plan to draw each year; 4% is the popular starting point and is what the calculator uses if you leave it blank; 3% to 3.5% is more cautious for long retirements.
- Current portfolio (optional): invested assets you will draw on, excluding your home and emergency fund; blank counts as 0.
- Annual contributions (optional): what you add each year until you switch; blank counts as 0.
- Real return: expected yearly growth after inflation.
Example Scenarios
| Spending | Part-time income | Withdrawal rate | Portfolio | Contributions | Real return | Barista FIRE number | Years | Full FIRE (years) |
|---|---|---|---|---|---|---|---|---|
| $40,000 | $20,000 | 4% | $150,000 | $25,000 | 5% | $500,000 | 8.8 | $1,000,000 (17.1) |
| $60,000 | $30,000 | 4% | $300,000 | $30,000 | 5% | $750,000 | 8.3 | $1,500,000 (17.4) |
| $50,000 | $25,000 | 3.5% | $0 | $20,000 | 6% | $714,286 | 19.7 | $1,428,571 (28.6) |
| $35,000 | $15,000 | 4% | $450,000 | $10,000 | 5% | $500,000 | 1.5 | $875,000 (10.3) |
| $80,000 | $50,000 | 4% | $750,000 | $40,000 | 5% | $750,000 | Already there | $2,000,000 (12.1) |
Barista FIRE vs Coast FIRE and Other Tips
Coast FIRE means you have saved enough that growth alone will reach a full retirement number by a set age, so you only need to earn your current living costs. Barista FIRE means you start drawing on the portfolio now while part-time pay covers the shortfall. The first example shows the payoff: half the portfolio, reached about eight years sooner.
- Start with an honest spending figure. Track a full year of spending; guessed budgets usually run low.
- Price health insurance separately if your part-time job will not provide it, and add it to spending.
- Use real returns. Mixing a nominal return such as 8% with today’s spending overstates progress.
- Stress-test with a 3.5% withdrawal rate and a 4% return. If the plan only works with optimistic inputs, it is fragile.
- Part-time income rarely lasts forever. Plan for when work stops and pensions or Social Security begin.
Using it as a Barista FIRE calculator in the UK, Canada or Australia works the same way, since the arithmetic ignores currency. Treat the result as a planning estimate, not a guarantee; tax rules, account access ages and benefits vary by country and year. For the history and variations of the movement, see Wikipedia’s article on the FIRE movement.
Common questions about Barista FIRE
How much do I need for Barista FIRE?
Divide the yearly shortfall by your withdrawal rate. At 4% that means 25 times the gap; at 3.5% it is about 28.6 times. A $20,000 gap needs $500,000 at 4% or about $571,429 at 3.5%.What is my Barista FIRE number?
It is the portfolio you need so that investment withdrawals cover the gap between your spending and your part-time income. With $40,000 of spending, $20,000 of part-time pay and a 4% withdrawal rate, the gap is $20,000 a year and the number is $500,000.What is the difference between Barista FIRE and Coast FIRE?
With Coast FIRE you stop saving but keep earning enough to cover expenses while the portfolio grows untouched. With Barista FIRE you begin withdrawing and rely on part-time work for the rest. This calculator models the second case.Does the calculator work in the UK, Canada or Australia?
Yes, the arithmetic is the same in any currency; just read the dollar sign as your own. What changes is tax, pension access ages and public health cover, so adjust spending and after-tax income for local rules, which vary by country and year.What withdrawal rate should I use?
Many planners start with 4%, based on historical US market studies over 30-year periods. Barista FIRE often begins earlier and lasts longer, so some people prefer 3.25% to 3.5%. Try several rates and see how much the target moves.Why does the result say not reached?
That appears when your contributions and returns can never close the gap, for example with no savings and no contributions, or with a negative real return that shrinks the portfolio faster than you add to it. Raise contributions, lower spending or revisit the return assumption.Related Calculators
Compare the result with a traditional plan using the retirement calculator, and check how long a portfolio lasts with the savings withdrawal calculator. To see how contributions grow before you downshift, the compound interest calculator pairs well with this one.