Born in 1957? Your Full Retirement Age Is 66 and 6 Months

If you were born in 1957, your full retirement age for Social Security is 66 and 6 months.¹ That’s the age when you can collect 100% of the monthly benefit calculated from your lifetime earnings, called your primary insurance amount (PIA). You can file as early as 62 or hold off until 70, but each choice permanently changes the size of every check you’ll receive for the rest of your life.

What 66 and 6 Months Actually Gets You

Full retirement age is the pivot point. File on the month you reach it and Social Security pays your PIA with no reduction and no bonus.² File earlier and every month before that date shaves a fixed percentage off your benefit. Wait longer and every month after adds a fixed percentage, up to age 70.

One quirk catches people born at the turn of the year. If your birthday is January 1, 1957, the SSA treats you as if you were born in December 1956, so your full retirement age is 66 and 4 months, not 66 and 6 months.³ Everyone else born in 1957 lands on 66 and 6 months.

Claiming Early at 62

You can start benefits at 62, but for someone born in 1957 that means filing 54 months before your FRA. The permanent reduction is 27.50%. A $1,000 PIA becomes about $725 a month, and that lower amount is what you’ll receive for life.³

The math runs in two tiers. For the first 36 months you file early, benefits are cut by 5/9 of 1% per month. For any months beyond 36, the cut is 5/12 of 1% per month.³ Because your FRA is 54 months past age 62, both tiers apply. The reduction never reverses. Your check does not jump back up when you hit 66 and 6 months.

Whether that trade makes sense turns on your health and your cash flow. Benefit amounts are set so someone with an average lifespan collects roughly the same total either way, and the break-even point where waiting beats claiming early typically falls in the late 70s. If you expect to live well past that, patience usually pays. If you need the money now, or have serious health concerns, the earlier check may be the right call.

Waiting Past 66 and 6 Months

Every month you delay past your FRA earns delayed retirement credits worth 2/3 of 1% per month, or 8% per year.⁴ Hold out until 70 and your monthly benefit reaches 128% of your PIA.² On a $1,000 PIA, that’s $1,280 a month for life, compared with $725 if you’d filed at 62. Credits stop accumulating at 70, so waiting beyond that birthday buys you nothing.

There’s a useful safety valve if you plan to delay. Once you’re past your FRA, you can file and request up to six months of retroactive benefits as a lump sum.⁵ If you’d planned to wait until 70 but something changed at 69, you could file then, collect a lump sum covering the previous six months, and lock in a monthly benefit based on age 68 and 6 months. You give up some delayed credits, not the whole stretch.

How Your Timing Affects Your Spouse

Your claiming age doesn’t just set your check. It shapes what your spouse can collect both during your life and after.

Spousal Benefits

A spouse can receive up to 50% of your PIA, but only by waiting until their own full retirement age to claim it. Filing for a spousal benefit earlier reduces the amount, using formulas of 25/36 of 1% per month for the first 36 months early and 5/12 of 1% per month after that.⁶ A spouse born in 1957 who claims a spousal benefit at 62 sees a 32.50% cut, dropping a $500 maximum to about $337.³

Survivor Benefits

When you die, a surviving spouse can collect based on what you were receiving or were entitled to receive. Claim early and lock in a smaller check, and that smaller amount is what the survivor benefit is built on. A surviving spouse can receive up to 100% of your benefit at their own full retirement age for survivors, with reduced amounts available starting at 60.⁷ If you delayed and built up credits, that larger amount carries forward too. This is the strongest argument for the higher earner in a couple to hold out.

Working While Collecting Before FRA

If you claim before 66 and 6 months and keep working, the earnings test can temporarily reduce your checks. In 2026, the annual limit for people under FRA the whole year is $24,480. Earn more than that and the SSA withholds $1 for every $2 above the limit.⁸

In the calendar year you reach your FRA, the rules loosen. The limit jumps to $65,160 and the withholding rate drops to $1 for every $3 over. Only earnings in the months before the month you hit FRA count.⁸ Starting the month you actually reach 66 and 6 months, there is no earnings limit at all.

Money withheld under the earnings test isn’t gone. Once you reach FRA, the SSA recalculates your benefit upward to account for the withheld months, and you recover it over time through higher checks. The earnings test functions more like a deferral than a penalty.

Medicare Still Starts at 65

Your Medicare eligibility does not move with your Social Security FRA. Medicare starts at 65, which leaves an 18-month gap between when you qualify for Medicare and when you reach 66 and 6 months. Your initial enrollment period runs from three months before your 65th birthday through three months after it.⁹

Missing that window is expensive. If you don’t sign up for Part B when first eligible, and you don’t have qualifying employer coverage, you’ll pay a late-enrollment penalty of 10% added to your Part B premium for every full 12-month period you could have enrolled but didn’t. The penalty stays on your premium for as long as you have Part B.¹⁰

The 2026 standard Part B premium is $202.90 a month.¹¹ If you’re already collecting Social Security when Medicare starts, the premium comes out of your check automatically. If you’re delaying Social Security past 65, you’ll need to enroll in Medicare on your own and pay the premium directly.

Taxes on Your Benefits

Depending on your other income, up to 85% of your Social Security benefits can be subject to federal income tax. The SSA and IRS use a figure called combined income: your adjusted gross income, plus tax-exempt interest, plus half of your Social Security benefits.¹²

For single filers:

Below $25,000, benefits are not taxed.
$25,000 to $34,000, up to 50% of benefits may be taxable.
Above $34,000, up to 85% of benefits may be taxable.

For married couples filing jointly:

Below $32,000, benefits are not taxed.
$32,000 to $44,000, up to 50% of benefits may be taxable.
Above $44,000, up to 85% of benefits may be taxable.

These thresholds have not been adjusted for inflation since 1983 and 1993, so more retirees cross them every year. If you have pension income, 401(k) withdrawals, or part-time earnings alongside Social Security, expect at least some of your benefits to be taxed. Many states exempt Social Security from state income tax, but not all, so check your state’s rules.

Applying for Your Benefits

The SSA recommends applying up to four months before you want benefits to start.¹³ The easiest route is online at ssa.gov, though you can also call the SSA or visit a local office. Applying online requires a my Social Security account, which uses identity verification through Login.gov or ID.me.¹⁴

Have these ready before you start:

Your Social Security number.
Your birth certificate, original or a certified copy from the issuing agency. Photocopies and notarized copies are not accepted.
Income records: W-2 forms or self-employment tax returns from the previous year.
Bank routing and account numbers for direct deposit.

If you’re missing something, apply anyway. The SSA lets you provide documents later and may be able to help you get what you need.¹⁵

1
Social Security Administration. Retirement | Born in 1957 | SSA
2
Social Security Administration. Delayed Retirement | Born in 1957
3
Social Security Administration. Benefits Planner: Retirement | Retirement Age and Benefit Reduction
4
Social Security Administration. Delayed Retirement Credits
5
Social Security Administration. SSA Handbook 1513 – Retroactive Effect of Application
6
Social Security Administration. Benefits for Spouses
7
Social Security Administration. What You Could Get from Survivor Benefits
8
Social Security Administration. Receiving Benefits While Working
9
Medicare.gov. When Can I Sign Up for Medicare?
10
Medicare.gov. Avoid Late Enrollment Penalties
11
Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles
12
Social Security Administration. Must I Pay Taxes on Social Security Benefits?
13
Social Security Administration. Timing Your First Payment
14
Social Security Administration. my Social Security | Security and Protection
15
Social Security Administration. What Documents Do You Need to Apply for Retirement Benefits?