Barista FIRE Calculator — Semi-Retirement Planning Tool

Barista FIRE is a semi-retirement strategy where you leave full-time work before reaching full financial independence. You earn a small part-time income — enough to cover some expenses — while your portfolio covers the rest. The name comes from the idea of working at a coffee shop like Starbucks, which offers health insurance to part-time employees. The result: you need a much smaller portfolio to semi-retire than you'd need to fully retire.

Full FIRE requires a portfolio large enough to cover 100% of your expenses through investment withdrawals alone — typically 25× annual expenses at a 4% withdrawal rate. Barista FIRE only requires the portfolio to cover the gap between your total expenses and your part-time income. If you earn $15,000/year part-time and spend $50,000/year, your portfolio only needs to cover $35,000 — a $875,000 target instead of $1,250,000. This smaller gap can shave years off your timeline.

Lean FIRE is fully retired on a minimal budget with zero earned income. Coast FIRE means you have enough invested that compound growth alone will reach full FIRE by traditional retirement age — you still work full-time, but only to cover current expenses without saving more. Barista FIRE sits between these: you've semi-retired with part-time income supplementing your portfolio withdrawals. It's the most flexible and accessible variant for most people.

Any flexible, reliable income source works: retail or service jobs (the original Barista FIRE concept), freelancing in your professional field, consulting, seasonal work, part-time teaching, online content creation, Airbnb hosting, or any side income you can maintain while living a semi-retired lifestyle. The key is that the work is lower stress, more flexible, and optional — you could stop if needed, but it meaningfully reduces what your portfolio must cover.

This is the central risk of Barista FIRE. If your portfolio only covers part of expenses, and you can no longer work, you need either a larger portfolio, reduced spending, or other income sources (like Social Security). Many Barista FIRE practitioners plan to gradually reduce part-time work as their portfolio grows beyond the Barista FIRE number, eventually transitioning to full FIRE. The calculator's Full FIRE Number shows exactly what full independence looks like.

No — Social Security is typically expected at age 62–70, not during semi-retirement at 40 or 50. It's better to plan your Barista FIRE strategy without assuming Social Security, then treat it as a bonus safety net when it arrives. If you're planning semi-retirement close to age 62, you could model a higher part-time income that includes expected Social Security benefits.

The standard 4% rule works for typical Barista FIRE timelines. However, because semi-retirement often starts earlier than traditional retirement, consider 3.5% for very long retirement horizons (25+ years). With part-time income actively supplementing your portfolio, you may actually have more flexibility — you can reduce withdrawals in bad market years by increasing work hours slightly.

Healthcare is the biggest financial wildcard in early semi-retirement, especially in the United States before Medicare eligibility at 65. The original Barista FIRE concept was specifically designed around working at Starbucks for their part-time employee health benefits. If you can secure employer-provided health insurance through part-time work, it dramatically reduces your semi-retirement costs. If not, factor ACA marketplace premiums into your total annual expenses input.