If you were born in 1956, your Social Security full retirement age is 66 and 4 months. Claim at that exact age and you receive 100% of your primary insurance amount. Claim earlier — as early as 62 — and your monthly check is permanently reduced. Wait past it and your benefit grows by 8% a year until you turn 70. Since anyone born in 1956 turns 70 in 2026, this is the last year delaying does anything for you.1Social Security Administration. Retirement | Born in 1956
How Your Benefit Is Calculated
Full retirement age is the point at which Social Security pays your full calculated monthly benefit, called your primary insurance amount. The Social Security Administration builds that figure from your 35 highest-earning years, adjusts those earnings for wage growth, and runs the total through a benefit formula.2Social Security Administration. Social Security Benefit Amounts Fewer than 35 years of earnings and the missing years count as zeros, which pulls the number down.
Every dollar figure on your Social Security statement is anchored to that primary insurance amount. Filing before 66 and 4 months shrinks it. Filing after grows it.
Claiming Early at 62
You can file at 62, but the reduction is steep and permanent. For someone born in 1956, claiming at 62 cuts your benefit by 26.67%. A $1,000 benefit becomes about $733.3Social Security Administration. Benefits Planner: Retirement | Retirement Age and Benefit Reduction
The formula works month by month. For each of the first 36 months you claim before full retirement age, your benefit drops by 5/9 of 1%. For any additional months beyond 36, the drop is 5/12 of 1% per month.4Social Security Administration. Benefit Reduction for Early Retirement From 62 to 66 and 4 months is 52 months: 36 at the steeper rate, 16 at the slower one. That produces the 26.67% cut.
The reduction sticks for life. Annual cost-of-living adjustments still apply on top, but the base never resets. Every month you can wait past 62 shaves the cut down. Filing at 64 instead of 62, for example, roughly halves it.
Waiting Until 70
For every month you delay past 66 and 4 months, delayed retirement credits raise your benefit. The rate for anyone born in 1956 is 8% per year, or 2/3 of 1% per month.5Social Security Administration. Delayed Retirement Credits Wait all the way to 70 and your benefit reaches roughly 129% of your primary insurance amount.6Social Security Administration. Effect of Early or Delayed Retirement on Retirement Benefits The maximum possible monthly benefit for someone turning 70 in 2026 is $5,181.7Social Security Administration. What Is the Maximum Social Security Retirement Benefit Payable?
Credits stop at 70. There is no financial reason to hold off past your 70th birthday, and since 1956 births hit 70 in 2026, anyone in this group who has been waiting should file now.
What Delaying Does for a Surviving Spouse
Delayed retirement credits also feed into what a surviving spouse or surviving divorced spouse can collect after your death. Social Security calculates the survivor benefit using your primary insurance amount plus any delayed credits you earned during your lifetime.8Social Security Administration. What Are Delayed Retirement Credits and How Do They Increase My Old-Age Benefit Amount? For a couple where one partner earned significantly more, waiting can lock in a higher survivor check for the lower earner.
Working While Collecting
Once you reach 66 and 4 months, you can earn any amount from work with no effect on your Social Security check. Before that age, an earnings test applies, so anyone born in 1956 who claimed early and kept working may have seen benefits withheld along the way.9Social Security Administration. Receiving Benefits While Working
The 2026 earnings limits:
- Under full retirement age all year: $24,480. Social Security withholds $1 for every $2 above that.
- Reaching full retirement age in 2026: $65,160 for the months before you reach it. Social Security withholds $1 for every $3 above that.
The limits apply only to wages and net self-employment income. Pensions, investment income, and veterans benefits do not count.10Social Security Administration. Exempt Amounts Under the Earnings Test
Withheld benefits are not lost. Once you hit full retirement age, Social Security recalculates your monthly benefit to credit you for the withheld months.11Social Security Administration. Retirement Earnings Test The agency also reviews your record each year to see whether recent earnings would raise your benefit going forward.
Taxes on Your Benefits
Depending on your total income, up to 85% of your Social Security benefits can be subject to federal income tax. The thresholds run off “combined income”: your adjusted gross income, plus nontaxable interest, plus half of your Social Security benefits.12Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits
- Single filers, combined income $25,000 to $34,000: up to 50% of benefits taxable.
- Single filers above $34,000: up to 85% taxable.
- Married filing jointly, $32,000 to $44,000: up to 50% taxable.
- Married filing jointly above $44,000: up to 85% taxable.
These thresholds were set in the 1980s and 1990s and have never been indexed for inflation, so they reach more retirees each year. Significant income from a pension, 401(k) withdrawals, or investments alongside Social Security will almost certainly mean owing federal tax on some of your benefits. At the state level, most states do not tax Social Security. As of 2026, only eight states tax benefits to any degree, and most of those exempt lower-income retirees.
Medicare Runs on Its Own Clock
Medicare eligibility starts at 65, regardless of when you claim Social Security. This trips up people born in 1956 who delayed filing. If you waited past 65 to claim Social Security, you were not automatically enrolled in Medicare, and missing the Medicare Part B sign-up window can trigger a permanent late enrollment penalty of 10% added to your monthly premium for each full year you were eligible but did not enroll.13Medicare.gov. Working Past 65
One exception: if you were covered by group health insurance through your own or a spouse’s current employer, you can delay Part B without penalty. When that job-based coverage ends, you get an eight-month Special Enrollment Period to sign up. COBRA does not count as current employer coverage.
How to Apply
You can apply online at ssa.gov, by phone at 1-800-772-1213, or in person at a local Social Security office.14Social Security Administration. Other Ways To Apply For Benefits Online is the fastest route. Plan to apply about four months before you want payments to start.
Have your Social Security number, an original or agency-certified birth certificate, last year’s W-2 or self-employment tax return, and bank account and routing numbers for direct deposit ready. Proof of citizenship or lawful status is required if you were not born in the United States, and military service records are needed if you served before 1968.15Social Security Administration. Retirement | What Documents Will You Need When You Apply?
Retroactive Payments if You Are Already Past Full Retirement Age
If you have already passed 66 and 4 months and have not filed, you can request retroactive benefits going back up to six months, but not before the month you reached full retirement age.5Social Security Administration. Delayed Retirement Credits Taking the retroactive lump sum lowers your ongoing monthly check, because it effectively backdates your start and forfeits some delayed retirement credits. For someone born in 1956 filing at or near 70 in 2026, that tradeoff between a six-month lump sum and a permanently higher monthly benefit is worth working through with a financial advisor before you file.