How Long Will $2 Million Last in Early Retirement? The Fat FIRE Answer

At $2 million, the question stops being whether the money lasts and becomes how much you can comfortably spend, and whether the extra years you worked to get here were worth it. Here is how long $2 million actually lasted at $60k, $80k, $100k, and $120k a year across 150 years of US market history, and what it reveals about the one-more-year trap.

By the time a portfolio reaches $2 million, the question quietly changes. At $500,000 you ask whether the money will last. At $2 million, for any sane spending level, history says it does, so the real questions become how much you can comfortably spend, and whether the extra years you worked to pile up the last stretch of it actually bought you anything. The data has an uncomfortable answer to that second one.

Straight-line, $2 million at $80,000 a year is 25 years. Invested in US stocks across real history, that same plan lasted the full 40 years we tested in the median case and almost never ran dry. The margin is so wide that the interesting story at this balance is not the downside. It is the diminishing returns at the top.

How we measured it

We took $2,000,000 in real (inflation-adjusted) dollars and walked it forward through every possible starting month in the bundled US stock series (Shiller, real total return with dividends reinvested, 1871 to 2025). Each month the balance grows by that month’s actual real return, then a fixed real withdrawal of one-twelfth of the annual spend comes out. When the balance hits zero, we record how many years it lasted. We ran a full 40-year test on every one of the 1,387 starting months with 40 years of data behind it, so every window is a complete, comparable outcome.

This is a straight, undisturbed backtest of a single all-US-stock portfolio, deliberately simpler than the simulator itself, which models US, international, and bond allocations and resamples history in blocks. Because outcomes in a constant real-spending backtest track the withdrawal rate rather than the dollar amount, a $2 million portfolio at $80,000 behaves in history exactly like $1 million at $40,000; what a bigger balance buys you is a bigger absolute lifestyle at the same safe rate.

The headline: a wide comfortable band

Here is how long $2 million actually lasted across four spending levels, next to the straight-line answer.

Illustrative only, not advice. $2,000,000 in real dollars, 100% US stocks (Shiller real total return), across 1,387 historical 40-year windows since 1871, computed by scripts/million-lasts-article-stats.mjs. "Median history" is the middle outcome; "40+ yr" means the median window still had money at the 40-year test cap. Straight-line = $2,000,000 divided by annual spend. Historical backtest of real starting points, not a forecast.

Look at the top row. At $60,000 a year, a 3% draw, every single one of the 1,387 historical starts lasted at least 30 years. Not the median, not most; all of them, including the ones that began on the worst days in the record. That is what real safety looks like, and it arrives well before the last dollar of a $2 million portfolio is needed. The whole table stays comfortable up through $100,000 a year, where more than four in five windows still cleared three decades and the median never ran out.

The one-more-year trap, in the data

Now put two numbers side by side. At $80,000 a year, $2 million cleared 30 years in 97.8% of histories. Working long enough to reach a third million, so that $80,000 became a 2.7% draw, would nudge that number a fraction of a percent closer to certainty. The extra safety is a rounding error. The extra working years are not.

This is the one-more-year trap made concrete. Once you are drawing 3% to 4% from a portfolio this size, additional savings buy almost no additional durability, because the plan was already going to survive nearly every version of the past. What you spend to get there is time, the one input no future market return can give back. The honest reading of the top of this table is that the case for oversaving past $2 million is weak for most spending plans, and the case for spending a little more, or simply stopping, is strong.

The downside still exists, it is just far away

None of this means risk vanished. Here is the unlucky-but-not-worst case (the 10th percentile) and the single worst starting month on record.

Illustrative only, not advice. Same 1,387 windows as above. "10th percentile" means one in ten historical starts lasted no longer than this; "40+ yr" means that outcome still had money at the 40-year cap. Every spend level's worst window began in October 1929. Historical backtest, not a forecast.

The worst case still traces to October 1929 at every spend level, the same sequence-of-returns risk that governs a $500,000 portfolio. The difference is scale. A retiree spending $60,000 who walked straight into the Great Depression still got 35.5 years out of $2 million. But push to $120,000 a year, a 6% draw, and the unlucky tenth of starts fell to 16.7 years, with the worst at 9.8. A large balance does not repeal sequence risk; it just moves the danger to the higher spending tiers, where lifestyle inflation, not survival, is the thing to watch.

At $2 million, “enough” has usually already happened. The question worth sitting with is not how to make a bulletproof number more bulletproof, but where your comfortable spending line is and whether the marginal year of work is buying security or just deferring the life the portfolio was meant to fund. If you are weighing the tiers, the difference between Lean, Coast, Barista, and Fat FIRE is really a question about where on this table you want to live. One caveat governs all of it: this is the record of US markets, which delivered an unusually strong century and a half, and the future is not required to repeat it. Treat these figures as a well-documented map of the past, not a promise about the next 40 years.

Other starting amounts: $500,000 and $1 million.

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