Worked example
Example with the default numbers — change them above.
Your age today: 32 · Age you leave full-time work: 45 · Monthly spending today: ₹70,000 · Share of spending paid by part-time income: 50% · Part-time income stops at age: 60 · Investments today: ₹30,00,000 · Monthly saving and investing: ₹75,000 · Assumed return while working: 11% · Assumed return after you leave: 9% · Inflation per year: 6%
If part-time work pays 50% of your spending until 60, you need ₹3.41 Cr at 45 instead of ₹4.48 Cr for full FIRE (24% less); your saving plan gets you there at age 43.
| You can go Barista at | Age 43 · Full FIRE at age 46 |
|---|---|
| Barista corpus at 45 | ₹3.41 Cr · ₹1.6 Cr in today's money |
| Full FIRE corpus at 45 | ₹4.48 Cr · Barista needs 24% less |
| Gap at age 45 | On track · Projected investments ₹4.34 Cr |
| Monthly part-time income at 45 | ₹74,652 · Rising with inflation until 60 |
How the Barista FIRE Calculator works
- Your monthly spending is inflated to the age you leave full-time work, then keeps rising with inflation every year.
- Until the age you choose, part-time income pays your chosen share of each month's spending; the corpus pays the rest.
- After that age the corpus pays everything. The corpus needed is the amount that funds these withdrawals and reaches zero at your plan-to age.
- The same calculation without part-time income gives the full FIRE corpus, so you see the difference.
- Your investments grow with your saving until each possible exit age, which shows the earliest age each path becomes possible.
Corpus needed with part-time income
Corpus = Σ over retirement months t of E(t) × (1 − c(t)) ÷ (1 + m)^t
E(t) = monthly spending in month t, rising yearly with inflation
c(t) = share paid by part-time income until it stops, then 0
m = monthly equivalent of the return after you leave full-time workAssumptions and limits
- Part-time income rises with inflation and stops completely at the age you enter.
- The corpus is sized to reach exactly zero at your plan-to age, with returns the same every year; it leaves no buffer for bad markets.
- Spending rises with the inflation you enter; healthcare often rises faster.
- Tax on part-time income and on investment gains is not modelled.
- Barista FIRE here is sized by money lasting to an age, while the FIRE, Lean and Fat pages use a withdrawal rate, so their numbers are not directly comparable.
Frequently asked questions
What is Barista FIRE and how does this calculator work?
Barista FIRE means quitting your full-time job while flexible work pays part of your costs. The name comes from working at a coffee shop, but in India it usually means consulting, teaching, freelancing or a small business. The calculator works out the corpus needed when that income covers a share of spending until an age, compares it with full FIRE, and finds when you can afford it.
How much part-time income do I need for Barista FIRE?
Choose the share that feels realistic and see how the corpus changes. Covering half your spending for 15 years can cut the corpus needed substantially, because those are years the corpus does not have to fund. The page shows the monthly income needed in the first year, in rupees of that time. Be conservative: part-time income can be less steady than a salary.
What happens when the part-time income stops?
Your withdrawals from the corpus jump, because it now pays all your spending. The stacked chart shows that step clearly. That is why the stop age matters as much as the amount: income that stops at 55 helps far less than income that lasts until 65. If you are unsure, enter an earlier stop age to see a cautious result.
Why does this page plan to an age instead of using a withdrawal rate?
Because the part-time income changes partway through retirement, a single withdrawal rate cannot describe it. Instead, the corpus is sized so that inflation-rising withdrawals, smaller while you earn and larger after, last exactly until your plan-to age. That method leaves no buffer at the end, so choose a generous plan-to age such as 90 or more.
What kind of work suits Barista FIRE in India?
Anything flexible that you would enjoy doing for years: consulting in your field, teaching or tutoring, freelance work, a small business, or a part-time role. The point is lower stress and more control over time, not maximum income. Health insurance matters more once you leave an employer's group cover, so price a personal policy into your spending.
Is Barista FIRE the same as Coast FIRE?
No. Coast FIRE means your investments are already large enough to grow into your full FIRE number on their own, so you only need to earn enough to cover today's spending and can stop saving. Barista FIRE means you start drawing from your corpus now, with part-time income covering the rest. Both are common stepping stones before full FIRE.
Sources
- Ministry of Statistics and Programme Implementation: consumer price index (inflation) data
- Reserve Bank of India: inflation, interest-rate and household-finance statistics
- AMFI: mutual fund data and investor education (SIP and SWP basics)
- SEBI: investor education on market risk
Logic and rates last verified on .
Next step: related calculators
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Retirement & FIRE Coast FIRE Calculator
Have I saved enough to stop investing and let growth do the rest?
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Retirement & FIRE FIRE Calculator
When can I retire early, and how much do I need?
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Retirement & FIRE Lean FIRE Calculator
How soon could I retire on a frugal budget?
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Retirement & FIRE Retirement Corpus Calculator
How much money do I need when I retire?
Guides that go deeper
See worked examples
The corpus and monthly SIP to retire at 40, 45, 50 or 55 on ₹20,000 to ₹2 lakh a month.
- How much corpus do I need to retire at 40 with ₹20,000 monthly expenses? — Corpus ₹1.23 Cr, SIP ₹44,500 a month
- How much corpus do I need to retire at 40 with ₹30,000 monthly expenses? — Corpus ₹1.84 Cr, SIP ₹66,500 a month
- How much corpus do I need to retire at 40 with ₹50,000 monthly expenses? — Corpus ₹3.07 Cr, SIP ₹1,11,000 a month