Your FI Number
One number changes everything. Your FI number is the portfolio size where work becomes optional. Let's find yours.
The 25x Rule Explained
FI Number = Annual Expenses × 25. That's it. This comes from the 4% safe withdrawal rate established by the Trinity Study — a landmark piece of financial research showing that withdrawing 4% of your portfolio annually has historically sustained a 30+ year retirement.
The beauty is that your FI number is driven by your expenses, not your income. A family spending $40K/year needs $1M. A family spending $100K/year needs $2.5M. Same formula, very different targets — which is why expense optimization is so powerful.
FIRE Variants
There's no one-size-fits-all. Choose the level of financial independence that matches your values.
Minimal spending, maximum freedom. You've optimized expenses aggressively and are comfortable living simply. Geographic arbitrage (low cost-of-living areas or countries) makes this very achievable.
A comfortable middle-class lifestyle without the paycheck. You can afford occasional travel, dining out, hobbies, and a modest home. This is where most ChooseFI community members aim.
All the freedom with zero lifestyle compromises. Premium healthcare, frequent travel, higher-cost-of-living areas. Requires either very high income, long timeline, or entrepreneurial success.
You've invested enough that compound growth will carry you to traditional retirement age without another dollar added. You only need to cover current expenses — no more saving required. Work becomes purely optional or part-time.
Your investments cover most expenses, and a low-stress part-time job fills the gap (and often provides health insurance). Named after the Starbucks barista strategy for health benefits.
Reducing Your FI Number
Every $100/month you cut permanently reduces your FI number by $30,000.
| Optimization | Monthly Savings | FI Number Reduction |
|---|---|---|
| Cancel unused subscriptions | $50 | -$15,000 |
| Cook at home 3 more nights/week | $200 | -$60,000 |
| Switch to a used car | $350 | -$105,000 |
| House hack or downsize | $500 | -$150,000 |
| Optimize insurance & phone plans | $100 | -$30,000 |
Total: $1,200/mo in savings reduces your FI number by $360,000.