Historical backtest

What If You Retired in 1954? The 4% Rule, Backtested

A $1,000,000 60/40 portfolio, retiring in 1954 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 $1,779,000 (today's real dollars).
4% withdrawal
$40,000/yr
PASSED
Funded all 30 years. Ended with $1,557,000 (today's real dollars).
5% withdrawal
$50,000/yr
PASSED
Funded all 30 years. Ended with $1,113,000 (today's real dollars).

Year by year: the 4% plan

YearAgeStocksBonds60/40WithdrawalEnd balance
1 65 +52% +7% +34% $40,000 $1,286,000
2 66 +30% −1% +18% $40,000 $1,466,000
3 67 +5% −6% +1% $40,000 $1,434,000
4 68 −13% +5% −6% $40,000 $1,313,000
5 69 +43% −4% +24% $40,000 $1,582,000
6 70 +10% −3% +5% $40,000 $1,616,000
7 71 −1% +10% +3% $40,000 $1,629,000
8 72 +26% +1% +16% $40,000 $1,843,000
9 73 −10% +5% −4% $40,000 $1,731,000
10 74 +21% +1% +13% $40,000 $1,911,000
11 75 +15% +3% +10% $40,000 $2,062,000
12 76 +10% −1% +6% $40,000 $2,135,000
13 77 −13% 0% −8% $40,000 $1,932,000
14 78 +21% −6% +10% $40,000 $2,085,000
15 79 +6% −2% +3% $40,000 $2,102,000
16 80 −12% −8% −10% $40,000 $1,848,000
17 81 −2% +11% +3% $40,000 $1,865,000
18 82 +11% +9% +10% $40,000 $2,012,000
19 83 +15% −1% +9% $40,000 $2,141,000
20 84 −21% −5% −15% $40,000 $1,794,000
21 85 −35% −7% −24% $40,000 $1,337,000
22 86 +30% +1% +18% $40,000 $1,536,000
23 87 +18% +9% +14% $40,000 $1,711,000
24 88 −14% −3% −10% $40,000 $1,510,000
25 89 −2% −8% −4% $40,000 $1,406,000
26 90 +5% −13% −2% $40,000 $1,336,000
27 91 +20% −12% +7% $40,000 $1,389,000
28 92 −14% −2% −9% $40,000 $1,225,000
29 93 +18% +29% +22% $40,000 $1,450,000
30 94 +18% −1% +10% $40,000 $1,557,000

What this sequence teaches

Over the first five years of this retirement (1954–1958), a 60/40 portfolio's cumulative real return was +85%. 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 $1,225,000 in 1981, before recovering in later years.

Because the first five years were strongly positive, this retirement built a real cushion early. A strong start is one of the best protections against sequence-of-returns risk, since later downturns bite a larger balance instead of a depleted one.

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.