Decode FIRE terms without the rabbit hole

The tendency to delay retirement even after hitting your number, chasing just one more year of salary. A real psychological hurdle — often rooted in identity, not math.

The guideline that you can safely withdraw 4% of your portfolio in year one of retirement and adjust for inflation each year after, and historically your money will last 30+ years. Based on the Trinity Study.

Employer-sponsored retirement account. Contributions are pre-tax (traditional) or post-tax (Roth). Look for employer match — that's free money.

A deferred-comp retirement account for state/local government and some non-profit employees. Key feature: no 10% early-withdrawal penalty after separating from service — making it the FIRE hacker's secret weapon.

A tax-advantaged account for education expenses. Contributions grow tax-free; qualified withdrawals are tax-free. Unused funds can now be rolled to a Roth IRA (up to $35K lifetime).

How your portfolio is split across asset classes (stocks, bonds, cash, real estate). The single biggest driver of long-term returns and volatility — pick one you can actually stomach in a crash.

Contributing to a Traditional IRA then immediately converting to Roth. Used by high earners above the direct Roth IRA income limit.

A hybrid state where your portfolio covers most (but not all) expenses via a conservative withdrawal, and you work part-time for the rest — often for the health benefits.

Karsten Jeske, author of the Early Retirement Now blog and its 60+ post Safe Withdrawal Rate series — the most rigorous public treatment of SWR math available.

A follower of John Bogle's investing philosophy: low-cost index funds, broad diversification, long time horizon, ignore the noise.

A loan to a government or company that pays interest and returns principal at maturity. The ballast that smooths portfolio volatility and buffers sequence risk.

Gradually increasing your bond allocation in the years leading up to retirement, then reducing it again after — a "tent" shape — to buffer against sequence risk.

Splitting retirement assets into three "buckets": short-term cash (1–2 years), medium-term bonds (3–10 years), and long-term stocks (10+). Refill each bucket from the next one in good market years.

A popular FIRE podcast and community hub founded by Jonathan Mendonsa and Brad Barrett. Known for practical tactics and a global network of local "ChooseFI Local" groups.

The middle ground between Regular FIRE and Fat FIRE — roughly $2.5M portfolio supporting $80–100K/year spending.

The point where you have enough invested that you never need to contribute another dollar — compound growth alone will carry you to Full FIRE by traditional retirement age. You still work, but only to cover current expenses.

Earning returns on your previous returns. At a 7% real return money doubles every ~10 years — the engine that makes FIRE possible.

Bill Perkins' philosophy arguing you should spend more in your healthy years rather than over-saving. A counterweight to extreme frugality.

A cash payment a company makes to shareholders, usually quarterly. Gets taxed differently from ordinary income if "qualified" — long-term cap gains rates apply.

Investing a fixed amount on a regular schedule regardless of price. Smooths out volatility and removes emotion from timing decisions.

The portion of retirement where you're pulling from your portfolio instead of contributing. Requires a different mental model than accumulation — tax efficiency and sequence risk dominate.

3–6 months of expenses in cash, separate from invested assets. The foundation before aggressive investing.

A fund that trades on an exchange like a stock. ETFs often track an index, have low expense ratios, and can be bought and sold throughout the trading day.

The annual fee a fund charges, expressed as a percentage. A 0.03% ratio means $3/year on $10,000. Tiny differences compound massively over 20+ years — always minimize this.

FIRE achieved with a comfortable or affluent lifestyle, typically $100K+/year expenses and a $2.5M+ portfolio.

A free, open-source backtesting tool (ficalc.app) that models retirement withdrawals across historical market cycles. A go-to for stress-testing your plan.

The state of having enough invested assets that work becomes optional — the "FI" half of FIRE. Many pursue FI without ever planning to "retire early."

Financial Independence, Retire Early. A movement focused on aggressive saving and investing to stop working for money decades before traditional retirement. The classic target is 25× your annual expenses.

Your target portfolio size to be financially independent. Usually calculated as annual expenses ÷ withdrawal rate. At a 4% SWR, $40K in annual expenses means a $1M FIRE number.

Save half of Coast FIRE's number, then take a multi-year break (or part-time work) while compound growth finishes the job. Named for the bird that stands on one leg.

Earning income in a high-cost-of-living area and spending it in a low-cost one. A common lever to accelerate or enable FIRE.

How your asset allocation changes over time — typically shifting from stock-heavy to more bonds as you approach and enter retirement.

The triple-tax-advantaged account: pre-tax contributions, tax-free growth, tax-free qualified withdrawals. FIRE folks treat it as a stealth retirement account.

A fund that passively tracks a market index (like the S&P 500). Low fees, broad diversification, and the core holding for most FIRE investors.

Author of "The Simple Path to Wealth" and the "Stock Series" blog posts — credited with converting a generation of investors to low-cost total-market index funds.

FIRE achieved on a minimalist budget, typically $20–30K/year of expenses. Requires $500K–$800K portfolio but lower lifestyle ceiling.

Letting spending rise every time income rises. The silent killer of FIRE timelines — raises should fund investments, not bigger cars.

If your 401(k) plan allows after-tax contributions and in-service conversions, you can stuff up to ~$46K/year extra into Roth accounts. The holy grail for high-income FIRE seekers.

Pete Adeney, the blogger widely credited with popularizing FIRE in the 2010s. Known for aggressive frugality and the "Shockingly Simple Math" post.

The sum of all your assets minus all your liabilities. The scoreboard for FIRE progress — track it monthly but judge the trendline, not any single month.

Practicing investing with fake money in real market conditions. Lets you build skill and confidence before risking real capital. What EasyFIRE does.

Income that continues without active work: dividends, interest, rents, royalties. Less common in early FIRE (most rely on portfolio drawdowns), but a popular parallel path.

A dividend taxed at long-term capital gains rates (0%, 15%, or 20%) instead of ordinary income. Must meet holding-period requirements — most U.S. stock fund dividends qualify.

The largest FIRE-focused subreddit, 2M+ members. Home of the weekly "Daily Discussion" and "Milestones" threads. More data-driven than most FIRE communities.

Investment return after subtracting inflation. A 10% nominal return with 3% inflation is a 7% real return — what actually grows your purchasing power.

Periodically selling overweight assets and buying underweight ones to return to your target allocation. Forces "buy low, sell high" mechanically, without prediction.

The baseline flavor of FIRE — middle-class lifestyle, roughly $40–80K/year expenses, $1M–$2M portfolio. Between Lean and Chubby.

Mandatory annual withdrawals from most pre-tax retirement accounts starting at age 73. Roth IRAs (owner's) are exempt. Miss one and the penalty is brutal.

A tactic to access retirement money before 59½. Convert Traditional → Roth each year after retiring; after a 5-year wait, the converted amount can be withdrawn penalty-free.

Individual Retirement Account where you contribute post-tax dollars and withdrawals in retirement are tax-free. 2026 limit: $7,000/year ($8,000 if 50+).

IRS rule letting you tap pre-tax retirement accounts before 59½ without the 10% penalty — provided you take "substantially equal periodic payments" for 5 years or until age 59½, whichever is longer.

Quick FIRE-number estimate: multiply annual expenses by 25 (the inverse of a 4% SWR). $50K/year × 25 = $1.25M target.

The percentage of a portfolio you can withdraw annually with high probability of not running out. Common targets range from 3.25% (ultra-safe) to 4.5% (aggressive).

(Income − Expenses) ÷ Income. The single most important variable for years-to-FIRE. A 50% savings rate reaches FIRE in ~17 years; a 20% rate takes ~37.

A self-employed retirement account that lets you contribute up to 25% of net self-employment income ($69,000 cap in 2026). Simple to open; no Roth option.

The risk of bad market returns in the first few years of retirement, which can permanently damage your portfolio even if average returns are fine. Mitigated with bond tents and cash buffers.

Saving small amounts monthly for a large known future expense (car, vacation, new roof). Keeps your investment portfolio from getting raided.

A 401(k) for self-employed people with no employees. Allows both employee and employer contributions, supports Roth, and often beats a SEP IRA for max contribution room.

An all-in-one fund that automatically shifts from stocks to bonds as a target retirement year approaches. Great default inside 401(k)s; less ideal in taxable due to capital gains distributions.

Selling losing positions in a taxable account to bank the capital loss for tax purposes, then buying a similar (not identical) asset. Can offset up to $3,000/year of ordinary income.

An investment account with no tax advantages but no withdrawal restrictions. Essential bridge for early retirees who need to fund expenses before 59½.

MMM's 2012 post showing that years-to-retirement depends almost entirely on your savings rate, not your income. The cultural foundation of modern FIRE.

A Boglehead classic: one US total stock market fund, one international stock fund, and one total bond fund. Simple, diversified, and battle-tested.

IRA where contributions are tax-deductible today, but withdrawals in retirement are taxed as income.

Short-term U.S. government debt (4-week to 1-year maturities). State-tax-free and one of the safest places to park cash — often beat high-yield savings rates.

Popular Vanguard tickers for the US total stock market (VTI, VTSAX) and S&P 500 (VOO). Commonly held core positions in FIRE portfolios.

A softer framing of FI: you keep earning because you want to, not because you need to. Emphasizes freedom of choice over dropping out of the workforce.