Early Retirement (FIRE): How to Retire Decades Earlier Than Your Parents

The FIRE movement — Financial Independence, Retire Early — gets caricatured as people eating rice and beans to escape the corporate grind by 35. The reality is more nuanced and more accessible. At its core, FIRE is simply the application of savings rate math to a shorter timeline. Save 50% of your income and you can retire in roughly 17 years. Save 70% and it's 8–9 years. The lifestyle is whatever you want it to be.

The savings rate-to-FIRE timeline

Assuming 5% real returns after inflation, here's how long it takes to reach 25× annual expenses (the standard FIRE target):

• 10% savings rate: 51 years
• 20% savings rate: 37 years
• 30% savings rate: 28 years
• 40% savings rate: 22 years
• 50% savings rate: 17 years
• 60% savings rate: 12 years
• 70% savings rate: 8–9 years

Types of FIRE

Lean FIRE means living on $30,000–$40,000/year and retiring with a smaller nest egg. Fat FIRE means maintaining a high standard of living — $100,000+/year — which requires a larger portfolio but is achievable for high earners. Coast FIRE means saving enough early that you can stop contributing and let compounding carry you to the finish line by traditional retirement age. Barista FIRE means leaving your career but working part-time to cover expenses while your portfolio grows untouched.

The two levers: income and expenses

Every percentage point of savings rate comes from either earning more or spending less. Spending less is faster to implement but has a floor — you can't cut below subsistence. Earning more has no ceiling. The highest savings rates typically come from raising income while holding expenses flat. A software engineer who maintains a teacher's lifestyle can save 60–70% without feeling deprived.

Healthcare: the early retiree's biggest challenge

Retiring before Medicare eligibility at 65 means paying for health insurance out of pocket. ACA marketplace plans, health sharing ministries, and part-time jobs with benefits are the three most common solutions. Budget $8,000–$15,000 annually for a couple's healthcare in early retirement — more if you have chronic conditions.

Sequence of returns risk in early retirement

Early retirees face a longer retirement horizon, which increases sequence-of-returns risk — the danger of poor market returns in the first decade of retirement. Mitigations include: a higher starting portfolio (30× expenses instead of 25×), a cash buffer of 2–3 years of expenses, flexible spending rules, and part-time income in early retirement years.