How Much Do I Need to Retire?

The honest answer is not a single number — it is your spending minus your guaranteed income, multiplied by enough to last thirty years. Social Security does most of the heavy lifting for ordinary spending levels, which is why the required balance is usually smaller than the headlines suggest.

The balance you actually need

Each row takes a monthly spending level, subtracts Social Security, and shows the savings balance required to fund the remainder for 30 years at 5% returns and 2.5% inflation. The last column is the same calculation for a couple with two average benefits.

Monthly spending	Gap after one benefit	Balance needed (single)	Gap after two benefits	Balance needed (couple)
$3,000	$1,024	$261,000	$0	None needed
$3,500	$1,524	$389,000	$0	None needed
$4,000	$2,024	$516,000	$48	$12,000
$4,500	$2,524	$644,000	$548	$140,000
$5,000	$3,024	$771,000	$1,048	$267,000
$6,000	$4,024	$1,026,000	$2,048	$522,000
$7,500	$5,524	$1,409,000	$3,548	$905,000

A 30-year horizon at 5% return and 2.5% inflation, before tax. Add roughly 15–25% if the money is in a traditional 401(k) or IRA and will be taxed on the way out.

Why "25 times your spending" overstates it

The familiar rule — save 25 times your annual spending — is built on the 4% withdrawal rate and is correct as far as it goes. The trap is applying it to total spending. A couple spending $60,000 a year does not need $1.5 million; they need 25 times the part Social Security does not cover, which on two average benefits is closer to $400,000.

What changes the number most

Housing. A paid-off home versus a mortgage or rent is often a $1,500-a-month swing — larger than any investment decision.
Retirement age. Retiring at 55 needs a 40-year horizon and a safe withdrawal rate nearer 3%, which raises the required balance by roughly a third against retiring at 65.
Healthcare before 65. Private cover can run $1,000+ a month per person until Medicare starts. See retiring at 60.
Tax wrapper. $1 million in a Roth is worth meaningfully more than $1 million in a traditional IRA. The table above is pre-tax.
When you claim. Delaying to 70 raises the benefit 77% over claiming at 62, which cuts the gap the portfolio has to fill for the rest of your life.

Test it rather than trusting it

Rules of thumb are built on averages you do not have. Put your own balance and your own gap into the calculator above; the "to last 30 years" figure is the same calculation as the table, run on your numbers instead of a national one.

Frequently asked questions

How much money do I need to retire?

It depends on the gap between your spending and your guaranteed income, not on your spending alone. A single retiree spending $4,000 a month with an average Social Security benefit needs savings to cover about $2,024 a month, which calls for a balance of roughly $516,000 for a 30-year retirement. The table above gives the figure for other spending levels.

Is $1 million enough to retire?

For most people, comfortably. A 4% withdrawal produces about $3,333 a month, and with an average Social Security benefit a single retiree is above $5,300 a month before tax. Whether it is enough depends on housing costs and healthcare more than on the balance.

What is the 25x rule?

Save 25 times your annual spending, which is the inverse of the 4% withdrawal rate. It is a reasonable starting point but should be applied to spending net of Social Security and any pension, not to total spending.

Do I need less if I retire later?

Yes, three times over: fewer years to fund, more years of contributions and growth, and a larger Social Security benefit. Each year of delay between 62 and 70 raises the benefit by roughly 7–8% permanently.

Related calculators

SavingsLast calculators are educational estimates. They assume a constant average return and steady inflation; real markets are volatile and sequence-of-returns risk can shorten how long money lasts. Nothing here is financial, investment, tax, or legal advice. Consult a qualified professional before making decisions.