How Long Will $1 Million Last in Retirement?
4 min read
The honest answer to "how long will $1 million last in retirement" is: it depends entirely on how much you spend each year. A nest egg that funds a comfortable 30-year retirement for one household runs dry in under a decade for another. The national-average headlines and city-ranking lists skip the only two numbers that decide your outcome: your annual spending and the rate at which you draw down the balance. Get those right and you can stop guessing.
The spending-rate matrix that actually answers the question
Start with a rough rule of thumb, then refine it with a real calculator. If your portfolio grows at roughly the same rate as inflation after fees (a conservative assumption many planners use), $1 million simply divides by your annual draw. The well-known "4% rule" comes from the Trinity-style studies, which found that withdrawing about 4% of the starting balance and adjusting for inflation each year gave a high probability of lasting 30 years across historical U.S. markets. That is a planning guideline, not a guarantee.
Here is the rough relationship between your annual spend and how long $1 million lasts before accounting for any market growth above inflation:
| Annual spending | Withdrawal rate | Approx. years (no real growth) |
|---|
| $40,000 | 4% | ~25 years (more with growth) |
| $50,000 | 5% | ~20 years |
| $67,000 | ~6.7% | ~15 years |
| $80,000 | 8% | ~12 years |
| $100,000 | 10% | ~10 years |
The pattern is unforgiving: doubling your spending more than halves your runway, because higher withdrawals also shrink the balance that would otherwise compound. At $40,000 a year, modest real returns can stretch the money past 30 years; at $80,000 a year, even good markets struggle to keep $1 million alive into a long retirement.
A worked example you can check
Suppose you retire at 62 with exactly $1,000,000 and spend $50,000 per year. Ignore growth for a moment: $1,000,000 divided by $50,000 equals 20 years, so the money is gone around age 82 with no other income. Now add a portfolio that earns 3% real (after inflation). Drawing $50,000 from a balance that earns roughly $30,000 in year one means you only net down about $20,000, and the runway stretches well past 25 years. The exact figure depends on the order of returns, which is why a model beats mental math. Plug your own balance, spending, and expected return into the retirement calculator to see the year-by-year drawdown instead of trusting a single average.
The three variables that move the needle most
Social Security timing and the 62-to-FRA gap
Claiming Social Security early at 62 permanently reduces your monthly benefit, while waiting until full retirement age (FRA) or up to 70 permanently increases it through delayed retirement credits. There is no added increase for waiting past 70. The practical play for many people is to spend down savings faster in the early "gap" years so they can delay claiming, then lean on a larger guaranteed check later. Every dollar Social Security covers is a dollar your $1 million does not have to. Use the SSA estimator at SSA.gov for your actual benefit at each claiming age, since the reduction and credit percentages depend on your birth year.
Sequence-of-returns risk
Two retirees can earn the same average return over 30 years and end with wildly different outcomes if one hits a bad market in the first few years. Selling assets while prices are down early in retirement does lasting damage, because those shares are no longer there to recover when the market rebounds. A cash buffer of one to two years of spending, plus the flexibility to trim withdrawals in down years, is the standard defense.
Inflation eroding a fixed draw
A flat $50,000 withdrawal feels stable, but its buying power shrinks every year. Over a long retirement, sustained inflation can roughly halve what a fixed dollar amount buys. Model this explicitly with the inflation calculator so your "comfortable" number today still works two decades out. For a deeper look at how rising prices hit retirees on a set income, see our guide on inflation's impact on fixed income.
How FIRE planners should read this differently
Early retirees face a longer horizon, sometimes 40 to 50 years, so the 4% rule's 30-year basis is less protective. Many in the FIRE community plan around a more conservative 3% to 3.5% withdrawal rate, which for $1 million means roughly $30,000 to $35,000 of annual spending. That is a tighter budget, but it dramatically raises the odds the money outlives you. Run both your target spend and your portfolio size through the FIRE calculator to find the withdrawal rate that fits your timeline before you pull the trigger.
Decision checklist before you trust any number
- Pin down your real annual spending, including healthcare and taxes, not a national average.
- Pick a withdrawal rate that matches your retirement length: closer to 4% for a standard 30-year retirement, lower for early retirement.
- Subtract guaranteed income (Social Security, any pension) so you size the portfolio's job correctly.
- Stress-test for a bad opening decade and for inflation, not just the average case.
- Revisit annually and adjust spending in down years rather than rigidly drawing the same amount.
These figures are estimates for planning, not personalized financial advice. For benefit specifics check SSA.gov, for tax treatment of retirement withdrawals check IRS.gov, and consider a fee-only fiduciary advisor before making an irreversible claiming or withdrawal decision.
Frequently Asked Questions
For many households, yes, especially when Social Security or a pension covers part of the budget. At a roughly 4% withdrawal, $1 million supports about $40,000 a year for around 30 years. Whether that is comfortable depends on your spending, location, healthcare costs, and how long you need the money to last.
Spending $80,000 from a $1 million portfolio is an 8% withdrawal rate, roughly double the 4% guideline. Without strong market returns the money lasts only about 10 to 12 years, and a bad early market or rising inflation can shorten that further. At that spend level you generally need a larger nest egg or significant guaranteed income.
The 4% rule remains a reasonable starting guideline for a 30-year retirement, but it is not a guarantee. It was based on historical U.S. market data and assumes annual inflation adjustments. Early retirees with 40-plus-year horizons often use 3% to 3.5%, and everyone should stress-test for sequence-of-returns risk and inflation.
Claiming later, up to age 70, permanently increases your monthly benefit through delayed retirement credits. By spending down savings in the early gap years to delay claiming, you secure a larger inflation-adjusted check for life. That higher guaranteed income reduces how much your $1 million must cover later, effectively stretching the portfolio. Check SSA.gov for your benefit at each age.
Inflation steadily erodes buying power, so a fixed annual withdrawal buys less every year. Over a long retirement, sustained inflation can roughly halve what a set dollar amount purchases. That is why planning withdrawals should account for rising costs rather than assuming a flat budget holds for 20 or 30 years.
