How Much Do You Need to Retire at 40? (By Spending Level)

Table by annual spending

Portfolio needed on the day you retire, in today's dollars, at three starting withdrawal rates:

Spending a year	4% rule (30 years)	3.3% (40 years)	2.9% (50 years)
$40,000	$1,000,000	$1,212,121	$1,379,310
$50,000	$1,250,000	$1,515,152	$1,724,138
$60,000	$1,500,000	$1,818,182	$2,068,966
$80,000	$2,000,000	$2,424,242	$2,758,621
$100,000	$2,500,000	$3,030,303	$3,448,276

The 3.3% and 2.9% rates are Morningstar's estimates for 40 and 50-year retirements; the portfolios are our calculation: spending ÷ rate. Going from 4% to 2.9% raises the number by 38%.

Portfolio needed by annual spending. Green line: 4%; grey: 3.3%; black: 2.9%. The plate marks $60,000 a year at 2.9%.

Why 50 years changes the math

The 4% rule comes from studies of 30-year retirements. Stop at 40 and the money may need to last to 90, which is 50 years. Morningstar's starting rates fall as retirement gets longer:

Retirement length	Morningstar starting rate	Portfolio for $60,000 a year
30 years	3.9%	$1,538,462
35 years	3.5%	$1,714,286
40 years	3.3%	$1,818,182
50 years	2.9%	$2,068,966

Taking 4% from 40 with a steady return after inflation, the money lasts 34.0 years, to about age 74 at 2% and 44.1 years, to about age 84 at 3%. Real returns are not steady, and a bad start shortens both; the 4% rule explained shows how.

What you'd need to save

Yearly saving needed to reach the 2.9% number by 40, starting from nothing, at 5% a year after inflation:

Spending in retirement	Portfolio at 40	Start at 25 (15 years)	Start at 30 (10 years)
$40,000	$1,379,310	$63,920	$109,661
$60,000	$2,068,966	$95,881	$164,492
$80,000	$2,758,621	$127,841	$219,323

Saving is assumed at the end of each year. Every year you start earlier lowers the amount, because more of the portfolio comes from growth.

Bridging to 59½

Retirement accounts such as IRAs and 401(k) plans charge a 10% additional tax on withdrawals before age 59½, on top of regular income tax, unless an exception applies. Someone who stops at 40 has 19½ years to cover. The usual options, explained for education only:

A taxable brokerage account. Money invested outside retirement accounts has no age rule.
Substantially equal periodic payments. The IRS exempts a series of equal payments based on your life expectancy, often called 72(t) payments. From an employer plan, you must leave that employer before they begin.
Roth IRA money. The 10% applies only to the part of a withdrawal that counts as taxable income. How Roth contributions, conversions and earnings are treated is set out in IRS Publication 590-B.
Governmental 457(b) plans. Distributions from an eligible state or local government 457 plan are generally not subject to the 10% additional tax.

The exception for leaving an employer at 55 or later does not help at 40. Health insurance until Medicare at 65 is a cost of its own and belongs in your spending figure. Tax rules have details not covered here; check them with the IRS or a tax professional.

Retirement benefits can begin at 62 at the earliest, reduced, and full benefits start at 67 for anyone born in 1960 or later. Retiring at 40, that is 22 to 27 years away, so the cautious plan has the portfolio pay everything at first. How other income lowers your FIRE number shows how to count it.

These figures are illustrations worked out from stated assumptions, not forecasts. Real returns vary from year to year, and taxes, fees and the order of good and bad years change the outcome. See the disclaimer.

Questions people ask

Can you retire at 40 with 1 million?

That depends on what you spend. At Morningstar's 50-year rate of 2.9%, $1,000,000 supports a first-year withdrawal of $29,000, raised with inflation after that; the 4% rule would allow $40,000. Taking $40,000 a year with a steady 3% return after inflation, $1,000,000 lasts 44.1 years, to about age 84.

Is $2 million enough to retire at 40?

$2,000,000 supports $58,000 in the first year at 2.9% and $66,000 at 3.3%. If your spending, including health insurance until 65, is below that, $2,000,000 covers it under these assumptions.

Is $3 million enough to retire at 40?

At 2.9%, $3,000,000 supports $87,000 in the first year; at 3.3%, $99,000. Taking $90,000 a year with a steady 3% return after inflation, it lasts past age 100.

Is $5 million enough to retire at 40?

$5,000,000 at 2.9% supports $145,000 in the first year. Any spending up to $145,631 a year is covered by a steady 3% return after inflation alone, so the balance would not shrink.

Check your numbers

The FIRE calculator works out your number and the age you reach it; set the withdrawal rate to 2.9% for a 50-year retirement. The how long will my money last calculator tests a withdrawal against a bad start.

Sources

Amy C. Arnott, "How Much Can You Safely Withdraw If You Retire Early?", Morningstar, September 15, 2026 (data as of September 30, 2025).
William P. Bengen, "Determining Withdrawal Rates Using Historical Data", Journal of Financial Planning, October 1994.
Internal Revenue Service, Topic no. 557, Additional tax on early distributions from traditional and Roth IRAs.
Internal Revenue Service, Topic no. 558, Additional tax on early distributions from retirement plans other than IRAs.
Internal Revenue Service, Publication 590-B, Distributions from Individual Retirement Arrangements (IRAs).
Social Security Administration, Starting Your Retirement Benefits Early.

Last reviewed by Asier Fernández, editor, on October 18, 2026. Educational information only, not financial advice. How we calculate

How much do you need to retire at 40?