How do Social Security retirement benefits work?

Your monthly check is based on your 35 highest-earning years, indexed for inflation. SSA averages those years into your Average Indexed Monthly Earnings (AIME) and runs it through a formula to produce your Primary Insurance Amount (PIA) — that is your full-retirement-age benefit.

The average retired worker received about $2,071/mo/month in January 2026 (SSA). The maximum for someone filing at FRA in 2026 is $4,152/mo/month. The maximum at 70 is $5,181/mo/month. Most people fall somewhere in between.

Log in to ssa.gov/myaccount to see your personalized estimate at 62, FRA, and 70.

Your full retirement age (FRA) is the age at which you receive 100% of your Primary Insurance Amount — no reduction, no bonus.

Birth years and FRA: 1943–1954 = 66 | 1955 = 66 and 2 months | 1956 = 66 and 4 months | 1957 = 66 and 6 months | 1958 = 66 and 8 months | 1959 = 66 and 10 months | 1960 or later = 67.

You can file as early as 62, but your benefit is permanently reduced. For someone whose FRA is 67, filing at 62 cuts the monthly check by 30% — for the rest of your life.

The reduction is calculated as: 5/9 of 1% per month for the first 36 months before FRA, and 5/12 of 1% per month for any months beyond that.

Filing age comparison: 62 = 70% of PIA ($2,969/mo/mo max) | 67 (FRA) = 100% ($4,152/mo/mo max) | 70 = 124% ($5,181/mo/mo max).

Yes — but if you are under full retirement age, the earnings test applies. The rules for 2026:

Under FRA all year: SSA withholds $1 for every $2 you earn above $24,480.
Year you reach FRA: SSA withholds $1 for every $3 above $65,160 — but only counting earnings before your FRA month.
From your FRA month on: No limit, no withholding, no matter what you earn.

For every month past your full retirement age that you delay filing, SSA adds 2/3 of 1 percent to your benefit — that's 8 percent per year. For someone with FRA 67 who waits until 70, the check is 24% higher than at FRA, for life.

Delayed retirement credits stop accumulating the month you turn 70. After 70, there is no additional increase.

Yes. Once you have filed, a current spouse who has been married to you for at least one year may qualify for spousal benefits — up to 50% of your Primary Insurance Amount.

That is 50% of your PIA — not 50% of what you're actually receiving. If you filed early and your check is reduced, your spouse's 50% is still based on your full-retirement-age number. The same works in reverse: if you delayed to 70 and your check is higher, your spouse's benefit is still capped at 50% of PIA — no bonus for your delay.

Yes — if the marriage lasted at least 10 years, you have been divorced for at least two years, and both of you are at least 62. Your ex may qualify for up to 50% of your Primary Insurance Amount as divorced-spouse benefits.

Key facts: SSA does not notify you that your ex filed. Your ex cannot be blocked by a divorce decree — no lawyer can contract away SSA rights. Your benefit is not reduced by their claim. If your ex has remarried, they generally cannot claim on your record (with limited exceptions).

Medicare starts at 65 — regardless of when you file for Social Security. Your Initial Enrollment Period (IEP) is the 7-month window: 3 months before your 65th birthday month, your birthday month itself, and 3 months after.

If you miss the IEP and do not have qualifying employer-sponsored coverage, Medicare imposes a permanent Part B premium penalty of 10% for every 12-month period you were late — for life. The standard 2026 Part B premium is $202.90/month. A two-year gap costs you an extra ~$40/month, permanently.

Possibly. Up to 85% of your Social Security benefits may be taxable at the federal level if your "combined income" — adjusted gross income + non-taxable interest + half your Social Security benefits — exceeds certain thresholds:

Single filer: above $25,000, up to 50% of benefits may be taxable; above $34,000, up to 85%.
Married filing jointly: above $32,000, up to 50%; above $44,000, up to 85%.

Many states also tax Social Security; several do not. The rules vary widely by state.

The Social Security Fairness Act was signed into law on January 5, 2025. It eliminated the Windfall Elimination Provision (WEP) and the Government Pension Offset (GPO), retroactive to January 2024.

If you — or your spouse — worked in a job that did not pay into Social Security (teachers, firefighters, police officers, state government employees with pensions in states that opted out of Social Security), your benefits may now be significantly higher than they were before the law changed.

SSA has been processing retroactive adjustments and issuing back payments. If you believe you are affected and have not yet received a corrected benefit or back payment, contact SSA at 1-800-772-1213 or visit your local SSA office.

Yes. Once you file for retirement, minor children under 18 (or under 19 if still in high school) may each qualify for up to 50% of your PIA. A disabled adult child who became disabled before age 22 can also draw on your record — with no age limit.

Each child's benefit is separate from your check and does not reduce it. There is, however, a family maximum — typically 150% to 188% of your PIA — that caps the total paid to all family members combined.

You can apply three ways:

Online at ssa.gov/benefits/retirement — fastest, takes about 30 minutes.
By phone at 1-800-772-1213 — Mon–Fri 8 AM–7 PM local time.
In person at your local SSA office — find yours at ssa.gov/locator.

You can apply up to 4 months before you want benefits to start. Have these ready: Social Security number, birth certificate, proof of citizenship or lawful immigration status, most recent W-2 or self-employment tax return, and bank account number for direct deposit. If applying on a spouse's record, bring the marriage certificate.