The answer on these inputs
$80,000 a year at 3.5% needs $2,285,714 at age 45. Starting from $420,000 and adding $42,000 a year at 5.0% real, the portfolio at 45 is $1,114,674 — short by $1,171,041. Across 1,000 seeded paths, that projected nest egg funds the spend for 50 years in 3% of worlds.
What a nest egg funds from 45
Retiring at 45 means funding 50 years to 95. The 3.5% rule of thumb says $2,285,714 covers $80,000 a year. Across 1,000 paths that nest egg lasts to 95 in 39% of them on cautious returns and 61% on Trinity-style returns. For $80,000 a year to last in 9 of 10 paths, the nest egg at 45 needs to be about $3,510,000 on Trinity-style returns and $5,820,000 on cautious ones.
| Nest egg at 45 | Cautious returns | Trinity-style returns | Per month, Trinity-style |
|---|---|---|---|
| $500,000 | $6,500 | $11,000 | $917 |
| $1,000,000 | $13,500 | $22,500 | $1,875 |
| $1,500,000 | $20,500 | $34,000 | $2,833 |
| $2,000,000 | $27,500 | $45,500 | $3,792 |
| $3,000,000 | $41,000 | $68,000 | $5,667 |
Cautious is 5% return, 15% volatility and 2% inflation, a stress case below long-run market history. Trinity-style is the Trinity study calculator's 7%, 12% and 3%.
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Why this age is different
The 4% rule was a 30-year result. Retiring at 45 with a plan to 95 is a 50-year problem. That is why the default rate here is 3.5%, not 4% borrowed from a shorter window. On Trinity-style returns, $2,000,000 supports about $45,500 a year from 45 and $47,500 from 50.