How much do you need to retire on $40k a year?
To spend $40,000/year after tax ($3,333/month) in retirement, you'd need roughly $830,000 if you retire at 65 — and more if you retire earlier, because the money has to last longer. Here's the nest egg required at each retirement age.
Nest egg needed for $40k/year, by retirement age
Retire earlier and the same income needs a bigger cushion, because the horizon is longer and Social Security is further off. Assuming 6% nominal return, 3% inflation, no Social Security:
| Retire at | Horizon | You need about |
|---|---|---|
| 55 | 40 yrs | $990,000 |
| 60 | 35 yrs | $920,000 |
| 62 | 33 yrs | $880,000 |
| 65 | 30 yrs | $830,000 |
| 67 | 28 yrs | $790,000 |
What moves this number
- Social Security. A typical benefit can cover a large slice of $40k/year on its own, so the portfolio only has to supply the rest — often cutting the required nest egg substantially.
- Taxes and account mix. $40,000 of spendable income requires a larger pre-tax withdrawal, since traditional-account money is taxed on the way out. A Roth-heavy portfolio needs less.
- How long it must last. Retiring at 55 instead of 65 adds a decade of withdrawals, which is why the earlier rows above are larger.
When Social Security carries most of the load
At an income target this modest, Social Security can eventually cover a large share of it on its own, which changes what the portfolio is actually for. Rather than funding the full amount from day one, its main jobs become bridging the years before you claim and topping up whatever gap remains once benefits begin. That reframing usually shrinks the balance required.
The biggest lever, then, is keeping fixed, non-negotiable costs low. The lower your essential floor — housing, insurance, food — the larger the fraction Social Security covers outright, and the less the portfolio has to carry for life. Flexible spending can be trimmed in a bad year; a high fixed floor cannot.
Timing the claim matters too. Each year you delay past full retirement age, up to 70, permanently raises an inflation-protected benefit that lasts as long as you do. For a couple, delaying the higher earner's benefit lifts that lifetime floor the most, and is the cheapest longevity insurance available.
Common questions
How much do I need to retire on $40,000 a year?
About $830,000 retiring at 65, or roughly $990,000 if you retire at 55 (the money must last longer). These are after-tax spending figures including the tax on withdrawals.
How much does $40k/year require if I retire early?
Retiring at 55 rather than 65 raises the nest egg needed to about $990,000 in this projection, because a longer retirement means more total withdrawals and Social Security is further away.
Does Social Security reduce what I need?
Substantially. Social Security is inflation-adjusted lifetime income, so every dollar it provides is a dollar the portfolio doesn't have to. Add your benefit in the calculator to see the lower target.