Historical backtest

What If You Retired in 1974? The 4% Rule, Backtested

A $1,000,000 60/40 portfolio, retiring in 1974 and spending $40,000/yr (inflation-adjusted), made it the full 30 years against real market history.

By · Updated July 15, 2026
3.5% withdrawal
$35,000/yr
PASSED
Funded all 30 years. Ended with $2,163,000 (today's real dollars).
4% withdrawal
$40,000/yr
PASSED
Funded all 30 years. Ended with $1,569,000 (today's real dollars).
5% withdrawal
$50,000/yr
PASSED
Funded all 30 years. Ended with $381,000 (today's real dollars).

Year by year: the 4% plan

YearAgeStocksBonds60/40WithdrawalEnd balance
1 65 −35% −7% −24% $40,000 $732,000
2 66 +30% +1% +18% $40,000 $819,000
3 67 +18% +9% +14% $40,000 $891,000
4 68 −14% −3% −10% $40,000 $769,000
5 69 −2% −8% −4% $40,000 $697,000
6 70 +5% −13% −2% $40,000 $643,000
7 71 +20% −12% +7% $40,000 $646,000
8 72 −14% −2% −9% $40,000 $550,000
9 73 +18% +29% +22% $40,000 $625,000
10 74 +18% −1% +10% $40,000 $645,000
11 75 +2% +10% +5% $40,000 $637,000
12 76 +27% +22% +25% $40,000 $746,000
13 77 +17% +21% +19% $40,000 $837,000
14 78 +1% −6% −2% $40,000 $783,000
15 79 +12% +3% +8% $40,000 $806,000
16 80 +26% +12% +20% $40,000 $922,000
17 81 −9% +2% −5% $40,000 $841,000
18 82 +27% +12% +21% $40,000 $969,000
19 83 +5% +5% +5% $40,000 $976,000
20 84 +7% +11% +9% $40,000 $1,016,000
21 85 −1% −10% −5% $40,000 $931,000
22 86 +35% +21% +29% $40,000 $1,153,000
23 87 +20% −1% +12% $40,000 $1,243,000
24 88 +30% +9% +22% $40,000 $1,462,000
25 89 +27% +11% +21% $40,000 $1,715,000
26 90 +18% −10% +7% $40,000 $1,789,000
27 91 −12% +13% −2% $40,000 $1,714,000
28 92 −13% +3% −7% $40,000 $1,564,000
29 93 −23% +13% −9% $40,000 $1,393,000
30 94 +26% +1% +16% $40,000 $1,569,000

What this sequence teaches

Over the first five years of this retirement (1974–1978), a 60/40 portfolio's cumulative real return was −11%. The single worst year in the tested window was 1974, when the 60/40 blend returned −24% in real terms.

Under the 4% withdrawal plan, the real portfolio balance bottomed out at $550,000 in 1981, before recovering in later years.

Because the first five years were net negative, this retirement faced early sequence-of-returns risk: withdrawals were drawn from a shrinking pool before growth had a chance to rebuild it — the single biggest driver of historical 4%-rule failures.

What RetireOdds actually simulates

The table above is the transparent skeleton: one portfolio, one withdrawal rule, one sequence of real historical returns, before taxes. It's meant to be checkable by hand.

Inside RetireOdds, the same year-by-year loop runs against your plan and adds what a real retirement actually has to deal with: federal and state taxes with account buckets (taxable, tax-deferred, Roth) drawn in order, Social Security claiming and its partial taxability, Required Minimum Distributions, healthcare costs (ACA subsidies before 65, Medicare and IRMAA after), Roth conversions, and one-time life events.

It also runs three engines instead of one: Monte Carlo (1,000 lognormal real-return paths calibrated to this same 1928–2023 dataset), a block bootstrap of this history, and the historical replay shown on this page. A plan fails if any year is unfunded — including the last one.

Read the full method on /methodology, walk through the product in the user guide, or try your own numbers in the free calculator.

Returns are approximate, rounded, planning-grade real (inflation-adjusted) totals for US large-cap stocks and 10-year Treasuries — this is educational modeling, not financial advice.

Run this against your own plan

This page tests one fixed portfolio against history. RetireOdds tests your numbers — your accounts, your Social Security, your taxes — across three simulation engines.