The basics

When Can I Retire? The Exact Ages, Rules, and Amounts

July 21, 2026 · By Tim Miller · 5 min read

‘When can I retire?’ has two answers: when the rules let you, and when you can afford to. Here are the specific ages and laws — the Rule of 55, 59½ withdrawals, Social Security from 62 to 70, Medicare at 65, and RMDs at 73 — plus the dollar-amount test for whether you can actually afford it.

There are really two questions hiding inside “when can I retire?” The first is legal: at what age do the rules let you tap your money and benefits without penalty? The second is financial: do you have enough? Let’s nail down both, with specifics.

The key ages, by law

Age	What it unlocks	The rule / detail
55	Penalty-free 401(k) from your last job	The ‘Rule of 55’: if you leave your employer in the year you turn 55+, you can withdraw from that employer’s 401(k)/403(b) with no 10% penalty
59½	Penalty-free IRA & 401(k) withdrawals	The universal age for penalty-free withdrawals from retirement accounts (you still owe income tax on pre-tax money)
62	Earliest Social Security	You can claim, but the benefit is permanently reduced — roughly 25–30% below your full benefit
65	Medicare begins	Health coverage eligibility; enroll around your 65th birthday to avoid penalties
66–67	Full Social Security benefit	‘Full retirement age’ — 67 if you were born in 1960 or later; 66–67 for earlier years
70	Maximum Social Security	Waiting past full retirement age earns ~8% more per year, up to age 70 — then delaying stops helping
73 (then 75)	Required Minimum Distributions	You must start withdrawing from pre-tax accounts at 73 (rising to 75 in 2033 under SECURE 2.0). Roth IRAs have no RMDs for the owner

Getting to your money before 59½

Want to retire early? There are legal ways to access retirement money before 59½ without the 10% penalty:

The Rule of 55: leave your job in or after the year you turn 55, and you can withdraw from that employer’s 401(k)/403(b) penalty-free.
72(t) / SEPP: take ‘substantially equal periodic payments’ from an IRA for at least 5 years or until 59½ (whichever is longer) to avoid the penalty.
Roth contributions: you can withdraw the money you contributed to a Roth IRA (not the earnings) any time, tax- and penalty-free.
A taxable brokerage account: has no age rules at all — which is why early retirees keep a ‘bridge’ of taxable savings to live on until 59½.

Social Security: the claiming decision

You can start Social Security anytime from 62 to 70, and the age you choose changes your check for life:

Claim at 62: smallest checks (about 25–30% less than your full benefit), but you get them for more years.
Claim at full retirement age (66–67): your full, unreduced benefit.
Wait until 70: the largest possible benefit — roughly 24–32% more than at full retirement age, thanks to ~8%-a-year delayed credits.

There’s no universally ‘right’ age — it depends on your health, whether you’re still working (earnings can temporarily reduce benefits before full retirement age), and whether you need the income. For many in good health, delaying toward 70 is the closest thing to guaranteed, inflation-adjusted ‘longevity insurance’ there is.

The financial answer: when can you afford it?

Being allowed to retire isn’t the same as being able to. The quick test is the 25× rule: you’re roughly in range when your savings equal about 25 times the yearly spending you’ll cover from your portfolio (i.e., your spending minus Social Security and any pension). That’s the flip side of the 4% rule — withdrawing about 4% of savings in year one, adjusted for inflation, has historically lasted ~30 years.

Estimate your annual spending in retirement.
Subtract guaranteed income (Social Security, any pension).
Multiply the remaining gap by 25 — that’s roughly the nest egg you need.
Retiring well before Social Security starts? You’ll need more, and many early retirees use a safer 3–3.5% withdrawal rate (about 28–33×).

Putting it together

A realistic sequence for many people: build savings and a taxable ‘bridge’ through your working years, retire once you clear the 25× test (often mid-50s to 60s), tap the bridge and Rule-of-55 or 59½ withdrawals first, enroll in Medicare at 65, and delay Social Security toward 70 if your health and cash flow allow — then remember RMDs kick in at 73.

The bottom line

You can retire as early as you can fund it — the ages above just govern penalty-free access and benefits. Legally, the milestones are 55, 59½, 62, 65, 66–67, 70, and 73. Financially, the answer is the day your savings pass about 25× the spending they need to cover. Hit that number, mind the ages, and you can retire on your terms.

Check your own timeline with the Retirement Portfolio Analyzer and the How Much Do I Need calculator.

Educational information only, not financial, tax, or legal advice. Ages and amounts reflect current U.S. rules and can change — confirm details at SSA.gov and IRS.gov.

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