How Much Do You Need to Retire? A Practical Way to Find Your Number

Updated October 2026 · 4 min read · Figures checked against official sources

“You need $1 million” and “you need $2 million” are both answers to a question nobody asked. The right number depends on how much you will spend and how much of that Social Security or a pension already covers.

The method

1. Estimate yearly spending in retirement in today’s dollars. A first guess is 70% to 80% of your current spending, but housing paid off and healthcare costs can move it either way.
2. Subtract guaranteed income: Social Security, pensions, annuities. Use your SSA statement and the Social Security calculator.
3. Multiply the gap by 25. That is the classic nest egg for a 4% starting withdrawal rate.

Four examples

A couple spending $60,000 with $30,000 of Social Security needs about $750,000, not $1 million or $2 million. That is why the generic answers can mislead in both directions.

Where the 4% rule comes from

William Bengen’s 1994 research, followed by the 1998 “Trinity study”, found that withdrawing 4% of your starting balance in year one and adjusting for inflation each year would have lasted at least 30 years across historical US market periods. It is a starting guideline, not a law. It assumed a stock-and-bond portfolio and a 30-year retirement.

Reasons to use a lower rate: retiring early (40-year horizon), high stock valuations, or a desire for near-certainty. Reasons to use a higher one: flexibility to cut spending after bad markets, a shorter horizon, or large guaranteed income.

Inflation changes the target

A nest egg need is stated in today’s dollars. If you are 30 years from retirement and spend $60,000 today, at 3% inflation you will need about $145,636 a year then. That is why a calculator that inflates expenses matters; the retirement calculator does that, then shows how much to save each month.

Healthcare and the things people forget

• Medicare begins at 65. Before that, coverage can be costly. Premiums, deductibles and out-of-pocket costs continue afterward, plus possible long-term care.
• Taxes. Traditional 401(k) and IRA withdrawals are taxed, so the “gap” may need to be higher before tax. Roth withdrawals are not.
• The first years. Bad markets early in retirement matter most (sequence risk). Keeping one to two years of expenses in cash helps.
• Spending patterns. Many people spend more early (travel) and less later, with healthcare costs rising at the end.

How much to save each month

If your number is $750,000 and you are 35, you have about 30 years. At 7%, you would need $615 a month (see the savings table for $1 million and scale). Check your own plan with the 401(k) calculator, including your match. Choose account types with the Roth versus traditional guide.

Pension or lump sum?

If you have a pension, the pension calculator estimates the payout and compares a lump-sum offer, and the annuity payout calculator shows how long a balance lasts at a given payment. See more in retirement tools.

Stress-test your number

1. Inflation. Rerun your plan at 4% inflation. If it fails, build more cushion or plan to adjust.
2. Returns. Rerun at a lower return, such as 5%. This shows how much your plan depends on strong markets.
3. Longevity. Plan to age 95. A couple at 65 has a meaningful chance that at least one of them lives past 90.
4. Early bad markets. Imagine a 25% drop in your first two years of retirement. Do you have cash or flexibility to avoid selling stocks at the bottom?

Levers you control

• Work a little longer. Each extra year adds savings, delays withdrawals and raises Social Security.
• Spend flexibly. Trimming withdrawals after bad years makes a given nest egg last much longer.
• Part-time income. Even $1,000 a month in early retirement reduces the amount you need to withdraw.
• Housing. Downsizing or paying off a mortgage changes the target substantially. See paying off a mortgage early.

Is $1 million enough to retire?

At a 4% rate that is $40,000 a year before taxes. With $30,000 from Social Security, it supports $70,000 of spending. It depends entirely on your costs.

How much should I have saved by 40, 50 and 60?

A common benchmark is about 3x salary by 40, 6x by 50 and 8x by 60 (Fidelity guidelines). Treat them as signposts, not rules.

Does the 4% rule still work?

It is a reasonable starting point. Many planners adapt it, spending less after market drops.

Should I count my home?

Only if you plan to sell or downsize. Otherwise it is housing, not spendable assets.

This guide is general information, not financial, tax or legal advice. Figures use stated assumptions and 2026 rules and will differ from your situation; check current rules and talk to a licensed professional before you decide. Full disclaimer.