Born in 1959? Your Full Retirement Age Is 66 and 10 Months

If you were born in 1959, your full retirement age for Social Security is 66 years and 10 months. Claim at that exact age and you receive 100% of your earned benefit: no early-filing reduction, no delayed-retirement bonus. Depending on your birth month, you’re reaching that milestone in 2025 or 2026, so the timing questions are immediate.

Why the Age Is 66 and 10 Months

Full retirement age used to be 65. Congress raised it in 1983 and phased in the increase starting with people born in 1938.1Social Security Administration. Why Did the Full Retirement Age Change? Those born between 1943 and 1954 settled at 66. After that, the age climbs in two-month steps per birth year. The 1959 cohort sits in the second-to-last step at 66 and 10 months.2Social Security Administration. If You Were Born in 1959, Your Full Retirement Age Is 66 and 10 Months Anyone born in 1960 or later hits the ceiling at 67.

What Claiming Early Costs You

You can start collecting as early as 62, but the reduction is permanent. For someone born in 1959, filing at 62 means claiming 58 months early, which cuts your monthly benefit by about 29.17%.3Social Security Administration. Benefits Planner – Retirement Age and Benefit Reduction On a $1,000 full-retirement-age benefit, that leaves roughly $708 a month for life.

The reduction is frontloaded. For each of the first 36 months you file early, Social Security subtracts 5/9 of one percent per month. Beyond 36 months, the rate drops to 5/12 of one percent per month.3Social Security Administration. Benefits Planner – Retirement Age and Benefit Reduction So the months closest to your full retirement age cost you the most. Filing at 64 instead of 62 puts you at about 34 months early and a reduction closer to 19%. Every month you wait between 62 and 66-and-10-months adds to your check permanently.

What Waiting Past 66 and 10 Months Earns You

Delay past your full retirement age and you earn delayed retirement credits worth 2/3 of one percent per month, or 8% per year.4Social Security Administration. Delayed Retirement Credits Credits stop accumulating at 70. For someone born in 1959, that leaves 38 months of possible delay from full retirement age, translating to roughly a 25.3% increase over the full-retirement-age benefit.

Benefits do not grow past 70, so there is no financial reason to wait beyond that birthday.4Social Security Administration. Delayed Retirement Credits If you delay past full retirement age and then decide to file, Social Security can pay you retroactively for up to six months, but not for months before you reached full retirement age. Retroactive payments cost you the delayed retirement credits you would have earned during those months, so the lump sum comes with a permanently lower monthly check.

Working While Collecting Before Full Retirement Age

If you claim before 66 and 10 months and keep working, an earnings test may temporarily reduce your payments. For 2026, the threshold is $24,480. Earn more than that and Social Security withholds $1 in benefits for every $2 over the limit.5Social Security Administration. Receiving Benefits While Working

In the year you actually reach full retirement age, a more generous rule applies to the months before your birthday. In 2026, that limit is $65,160, and only $1 is withheld for every $3 over it.5Social Security Administration. Receiving Benefits While Working Starting the month you hit full retirement age, the earnings test goes away entirely and you can earn any amount without affecting your benefits.6Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet

Withheld benefits aren’t lost. Once you reach full retirement age, Social Security recalculates your monthly benefit to credit you for the months you gave up to the earnings test, producing a higher check going forward.7Social Security Administration. Program Explainer – Retirement Earnings Test The adjustment isn’t a dollar-for-dollar refund, but it does mean the earnings test is more of a cash-flow squeeze than a permanent loss.

Spousal and Survivor Benefits Follow Different Rules

If your spouse has a higher earnings record, you may qualify for a spousal benefit worth up to 50% of their primary insurance amount when you claim at your own full retirement age.8Social Security Administration. Benefits for Spouses Claiming spousal benefits early carries its own reduction, slightly steeper than for retirement benefits: 25/36 of one percent per month for the first 36 months before full retirement age, and 5/12 of one percent for each additional month. For someone born in 1959 who takes spousal benefits at 62, the reduction is about 34.17%, shrinking the benefit from 50% of the worker’s amount to roughly 33%.3Social Security Administration. Benefits Planner – Retirement Age and Benefit Reduction

Survivor benefits work on a separate track. If your spouse dies, you can collect as early as age 60, or 50 with a qualifying disability.9Social Security Administration. Who Can Get Survivor Benefits The full retirement age for survivor benefits is not the same as for your own retirement benefit; it uses a different schedule that also falls between 66 and 67 for people born in 1959.10Social Security Administration. See Your Full Retirement Age (FRA) for Survivor Benefits Claim survivor benefits before that separate age and they’ll be reduced. The SSA site has a tool that returns your exact survivor full retirement age by birth year.

Medicare Starts at 65, Not at Full Retirement Age

This catches many people born in 1959: Medicare eligibility begins at 65, nearly two years before your Social Security full retirement age. Your initial Medicare enrollment window opens three months before the month you turn 65 and closes three months after.11Medicare.gov. When Can I Sign Up for Medicare? If you were born in 1959, that window has likely already closed.

Missing enrollment for Medicare Part B carries a penalty for as long as you have coverage: 10% added to your monthly premium for each full 12-month period you were eligible and didn’t sign up.12Medicare.gov. Avoid Late Enrollment Penalties The standard Part B premium in 2026 is $202.90, so a two-year gap would add about $40.58 to your premium every month, permanently. The main exception is qualifying employer coverage during the gap, which triggers a special enrollment period without penalty.

Taxes on Your Benefits

Depending on total income, up to 85% of your Social Security benefits can be subject to federal income tax. The IRS uses a figure called combined income (your adjusted gross income, plus nontaxable interest, plus half of your Social Security benefits) to determine how much is taxable.13Internal Revenue Service. IRS Reminds Taxpayers Their Social Security Benefits May Be Taxable

These thresholds have not been adjusted for inflation since 1983 and 1993, so more retirees cross them every year. “Up to 85% taxable” does not mean an 85% tax rate; it means 85% of your benefit is added to your taxable income and taxed at your normal rate. For tax years 2025 through 2028, an enhanced standard deduction is available for individuals 65 and older: an additional $6,000 per qualifying individual on top of the regular standard deduction, or $12,000 for a married couple where both qualify.15Internal Revenue Service. Check Your Eligibility for the New Enhanced Deduction for Seniors It doesn’t move the combined-income thresholds, but it does trim the overall tax bill.

When to Apply

You can submit your Social Security application up to four months before you want benefits to begin.16Social Security Administration. When To Start Benefits The online portal at ssa.gov is the fastest route; you can also apply by phone or at a local office. If you’re aiming to claim at 66 and 10 months, count back four months from that birthday and put it on your calendar.