Financial
Independence
Library
Guides, strategies, and deep dives on reaching FIRE — from calculating your number to retiring by 40.
Case Study: Retiring with $1M by 35
A detailed year-by-year breakdown of how a software engineer went from $8,000 in savings at 24 to $1,040,000 and work-optional at 35 — the decisions, numbers, and lessons.
Barista FIRE Explained: How to Semi-Retire Sooner Than You Think
Barista FIRE lets you leave your high-income career early by combining a smaller portfolio with part-time income. Here's the math, a real example, and how to plan the transition.
Case Study: Retiring with $1M by 35
A detailed year-by-year breakdown of how a software engineer went from $8,000 in savings at 24 to $1,040,000 and work-optional at 35 — the decisions, numbers, and lessons.
Barista FIRE Explained: How to Semi-Retire Sooner Than You Think
Barista FIRE lets you leave your high-income career early by combining a smaller portfolio with part-time income. Here's the math, a real example, and how to plan the transition.
How Much Should I Save to Retire by 40?
The exact portfolio targets, savings rate requirements, income scenarios, and account strategies for achieving financial independence by your early 40s.
Financial Independence Calculator Explained
What FIRE calculators actually compute, how to use them effectively, what the inputs mean, how to read the outputs, and the scenarios you must stress-test.
Top 5 Investment Apps to Achieve Financial Freedom
Fidelity, Vanguard, M1 Finance, Betterment, and Schwab compared for FIRE investors — which platform is right for your savings strategy and portfolio size.
How to Retire Early Using the 4% Rule
A step-by-step tutorial on applying the 4% rule to plan your early retirement — calculating expenses, choosing a withdrawal rate, building your portfolio, and stress-testing the plan.
How Investment Growth Works: Compound Returns Explained
The math behind compound investment growth, why time is the most powerful variable, and how to project your portfolio using the future value formula.
Index Fund Investing for FIRE: A Practical Guide
Why the FIRE community has converged on index funds, how to build a simple three-fund portfolio, and the tax strategies that accelerate your timeline.
Lean FIRE vs. Fat FIRE: Which Path Is Right for You?
Two very different approaches to financial independence — frugal early retirement vs. a comfortable portfolio. A side-by-side comparison to help you decide.
Coast FIRE Explained: How to Stop Saving and Still Retire
Coast FIRE is the milestone where your existing portfolio will grow to your FIRE number without another contribution. Here's how it works.
Why Your Savings Rate Matters More Than Your Income
The single most powerful variable in your retirement timeline isn't how much you earn — it's the percentage you save. Here's the math.
The 4% Rule Explained: Safe Withdrawal Rates for Early Retirees
The research behind the 4% rule, why it works, its limitations for long retirements, and how to apply it to your FIRE plan.
How to Calculate Your FIRE Number
Step-by-step guide to calculating exactly how much you need to retire — including how to choose your withdrawal rate and account for Social Security.
What Is FIRE? Financial Independence, Retire Early Explained
A complete beginner's guide to the FIRE movement — the math, the mindset, the four types of FIRE, and how to get started.
Put the theory to work.
Run the numbers on your own FIRE timeline with our free calculators.