Blog
Short, evidence-oriented explainers — no product pitches. Pair with the calculators and methodology.
- ·9 min read
Social Security at 62 vs. 70 for FIRE: the portfolio impact
Claiming Social Security at 62 vs. 70 can change a FIRE portfolio target by six figures. Compare monthly benefit tradeoffs, sequence risk, and bridge planning.
2026sequence-riskfire-number - ·10 min read
Roth conversion ladder vs. taxable brokerage in 2026
Compare a Roth conversion ladder and taxable brokerage bridge for early retirement in 2026, including tax brackets, cash-flow timing, and calculator workflow.
2026tax-planningcomparisonfire-number - ·9 min read
2026 401(k) Roth catch-up rule: what FIRE savers need to know
2026 401(k) limits, age 50 catch-ups, the age 60-63 super catch-up, and the high-earner Roth catch-up rule explained for FIRE planning.
2026tax-planningfire-number - ·12 min read
The first 100 days after FIRE: a plan for time, brain, and identity
Your portfolio can fund retirement without designing it. Use this 100-day plan to replace the structure, challenge, connection, and purpose work provided.
barista-firesemi-retirementbasics - ·11 min read
Mini-retirement math: take a career break without derailing FIRE
Price a 3–12 month mini-retirement, measure the true FIRE delay, protect the downside, and decide whether using some freedom now is worth it.
years-to-firecoast-firebarista-firesemi-retirement - ·12 min read
Lean FIRE path: years, savings rate, and Coast hybrids
How long to Lean FIRE under savings-rate math, worked path tables, which levers move the date, and when Lean Coast or Barista hybrids help — educational only.
lean-fireyears-to-firecoast-fire - ·11 min read
Lean FIRE budget and lifestyle systems (that survive reality)
Build a Lean FIRE spending figure from categories, fixed vs flexible costs, housing and healthcare load-bearers, HCOL reality checks, and a tracking loop — educational only.
lean-firebasicsfire-number - ·10 min read
Lean FIRE number: how much do you need? (tables)
Lean FIRE number = annual spending ÷ withdrawal rate. Full tables for $25k–$50k spend at 3%, 3.5%, and 4% SWR, 25×–33× multiples, and free calculator workflow — educational only.
lean-firefire-numbertables - ·14 min read
Lean FIRE explained: definition, math, path, and risks
Lean FIRE is a spending-based FI target, not a personality test. Core formula, $25k–$50k tables, 3–4% SWR grids, path math, vs other FIRE styles, and free calculators — educational only.
lean-firefire-numberbasics - ·11 min read
Semi-retirement math: portfolio + part-time income
Worked Barista FIRE / semi-retirement math: gap formula, SWR tables, Coast comparison, income volatility, and a practical scenario workflow — educational only.
barista-firesemi-retirementfire-number - ·11 min read
RetireFire methodology explained (human version)
Plain-language tour of RetireFire math: FIRE number, years, Coast, Barista, shared assumptions, free Monte Carlo stress tests, and deliberate limits — without the jargon wall.
methodologybasicsstress-test - ·10 min read
Lean vs Regular vs Fat FIRE numbers (2026)
Transparent 2026 FIRE number tables for Lean, Regular, and Fat spending presets at 3%, 3.5%, and 4% withdrawal rates — plus Coast and Barista sketches and stress context.
fire-number2026basics - ·11 min read
Barista FIRE healthcare & benefits cliffs (education)
How employer hours, insurance eligibility, and benefit cliffs can dominate Barista FIRE math — what simple portfolio gap calculators omit, and a practical planning checklist.
barista-firesemi-retirementbasics - ·10 min read
When can you stop saving for retirement?
Coast FIRE is the clean answer to “when can I stop aggressive retirement saving?” — definitions, formula, decision gates, and why sequence risk still matters after you coast.
coast-firebasicsfire-number - ·11 min read
Years to FIRE: which lever moves the needle most?
Savings rate, spending, returns, and withdrawal rate ranked by impact on years-to-FIRE — with worked examples, sensitivity tips, and how to stress-test the timeline.
years-to-firefire-numberbasics - ·12 min read
How to stress-test your Coast FIRE number (practical guide)
Step-by-step: deterministic Coast math first, then lower return/SWR sensitivity, free Monte Carlo ranges, and a go/no-go checklist before you change savings.
coast-firestress-testsequence-risk - ·12 min read
Coast FIRE by age: tables and worked examples
Age-by-age Coast FIRE numbers for common spending levels, with 4% vs 5% real return stress columns and clear assumptions — plus how to run your own table.
coast-firetableslinkable - ·11 min read
Monte Carlo vs historical cycles: what free FIRE tools can teach
How simple Monte Carlo stress tests differ from historical cycle backtests — success rates, limitations, and how to use each without false precision.
sequence-riskstress-testmethodology - ·12 min read
Realistic FIRE numbers in 2026 (with stress-test context)
Worked FIRE, Coast, and Barista numbers for common spending levels in 2026 — plus how lower SWR and sequence stress tests change the story.
fire-numbercoast-fire2026 - ·11 min read
Why most simple FIRE calculators fail long-term planners
Constant returns, missing sequence risk, taxes, and lifestyle — what simple FIRE math gets right, what it quietly omits, and how to use tools without false confidence.
basicssequence-riskmethodology - ·11 min read
Barista FIRE vs Coast FIRE: a data-driven comparison
Same spending, different questions: stopping contributions (Coast) versus covering part of spend with work income (Barista). Formulas, tables, and when each frame helps.
barista-firecoast-firecomparison - ·12 min read
Coast FIRE with sequence of returns risk
Why a single Coast FIRE number can look safe under constant returns — and how sequence risk, lower return assumptions, and stress testing change the picture.
coast-firesequence-riskstress-test - ·12 min read
Safe withdrawal rate: 3% vs 3.5% vs 4% (early retirement deep dive)
SWR for FIRE and early retirees: research lineage of 4%, why 3–3.5% is common for long horizons, worked multiples, flexibility rules, and how to stress-test without false precision.
swrfire-numbersequence-risk - ·8 min read
How many years until FIRE?
The levers that move your timeline to financial independence: savings rate, spending, portfolio, and return assumptions — plus links to deeper lever analysis and stress tests.
years-to-firebasics - ·7 min read
Coast FIRE number: formula and examples
How to calculate a Coast FI number, with a clear discount formula and numeric examples you can re-run in the calculator.
coast-firebasics - ·6 min read
Barista FIRE number: formula and examples
How part-time income shrinks the portfolio you need — with clear semi-retirement math and examples.
barista-firesemi-retirement - ·8 min read
Barista FIRE and semi-retirement
How part-time income changes the portfolio you need, why people choose semi-retirement, model limits, and where to go deeper on math and healthcare cliffs.
barista-firesemi-retirement - ·6 min read
Coast FIRE explained
Why “coasting” is about stopping aggressive saving — not retiring tomorrow.
coast-firebasics - ·5 min read
What is a FIRE number?
A plain-English guide to the portfolio multiple that underpins Lean, Regular, and Fat FIRE.
basicsfire-number