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Social Security basics: full retirement age, benefit formula & 2026 limits

As of Oct. 13, 2026

The basic Social Security retirement rules in plain English: your full retirement age, how SSA turns your earnings into a monthly benefit, what changes if benefits start early or late, the 2026 earnings limits, and the 2026 tax cap. Every number links to the SSA.gov page it came from, with the date we checked it.

Not financial advice. Not an SSA estimate. This page republishes Social Security Administration formulas and dollar amounts with dates. It doesn't tell you when to claim, and the calculators below are rough math on numbers you type in, not your benefit. Your official estimate comes from your own earnings record: sign in to my Social Security at SSA.gov. Social Security never charges to set up an account or apply for benefits.

2026 Social Security numbers at a glance

67Full retirement age if born 1960 or later (SSA NRA table)
$1,286 / $7,7492026 PIA bend points (SSA PIA formula)
$24,4802026 earnings test limit, under FRA all year (SSA exempt amounts)
$65,1602026 limit in the year you reach FRA (SSA exempt amounts)
$184,5002026 taxable maximum (wage base) (SSA taxable maximum)
2.8%COLA for benefits payable Jan. 2026 (SSA latest COLA)

Full retirement age (FRA) by birth year

SSA calls it "normal retirement age." It's the age at which your retirement benefit equals your primary insurance amount (PIA), with no reduction for claiming early and no increase for waiting.

Year of birthFull retirement age
1937 and prior65
193865 and 2 months
193965 and 4 months
194065 and 6 months
194165 and 8 months
194265 and 10 months
1943-5466
195566 and 2 months
195666 and 4 months
195766 and 6 months
195866 and 8 months
195966 and 10 months
1960 and later67

Source: SSA NRA table.

How the basic benefit (PIA) is calculated

Step 1: AIME (average indexed monthly earnings)

Source: SSA benefit amounts.

Step 2: apply the PIA formula (2026 bend points)

Workers who first become eligible for retirement or disability benefits in 2026 (retirement eligibility begins at age 62), or who die in 2026 before becoming eligible. Their PIA is the sum of:

Portion of AIMEPercent counted
First $1,28690%
Over $1,286 through $7,74932%
Over $7,74915%

Rounded to the next lower multiple of $0.10 if not already a multiple of $0.10. The bend points rise each year with the national average wage index: SSA computed 2026's as $180 × 69,846.57 ÷ 9,779.44 = $1,285.59 → $1,286, and $1,085 × 69,846.57 ÷ 9,779.44 = $7,749.27 → $7,749.

Example from SSA: SSA's example: a worker with maximum-taxable earnings every year since age 22 who retires at age 62 in 2026 has an AIME of $14,358 and a PIA of $4,216.90, then receives a reduced benefit because of claiming at 62.

Sources: SSA PIA formula · SSA benefit amounts.

Starting early or late: SSA's published percentages

These are SSA's own tables. They show how the monthly amount changes with the age benefits start. They don't say which age is better for anyone; that depends on things like health, other income and family benefits, which this page doesn't assess.

Benefit as a percent of PIA, by age benefits start

Year of birthFRADelayed credit per year after FRAAt 62At 63At 64At 65At 66At 67At 70
1937656 1/2%80%86 2/3%93 1/3%100%106 1/2%113%132 1/2%
193865 and 2 months6 1/2%79 1/6%85 5/9%92 2/9%98 8/9%105 5/12%111 11/12%131 5/12%
193965 and 4 months7%78 1/3%84 4/9%91 1/9%97 7/9%104 2/3%111 2/3%132 2/3%
194065 and 6 months7%77 1/2%83 1/3%90%96 2/3%103 1/2%110 1/2%131 1/2%
194165 and 8 months7 1/2%76 2/3%82 2/9%88 8/9%95 5/9%102 1/2%110%132 1/2%
194265 and 10 months7 1/2%75 5/6%81 1/9%87 7/9%94 4/9%101 1/4%108 3/4%131 1/4%
1943-54668%75%80%86 2/3%93 1/3%100%108%132%
195566 and 2 months8%74 1/6%79 1/6%85 5/9%92 2/9%98 8/9%106 2/3%130 2/3%
195666 and 4 months8%73 1/3%78 1/3%84 4/9%91 1/9%97 7/9%105 1/3%129 1/3%
195766 and 6 months8%72 1/2%77 1/2%83 1/3%90%96 2/3%104%128%
195866 and 8 months8%71 2/3%76 2/3%82 2/9%88 8/9%95 5/9%102 2/3%126 2/3%
195966 and 10 months8%70 5/6%75 5/6%81 1/9%87 7/9%94 4/9%101 1/3%125 1/3%
1960 and later678%70%75%80%86 2/3%93 1/3%100%124%

Rows for 1924–1936 births are on SSA's page. People born Jan. 1 use the previous year. Source: SSA early/delayed table.

Reduction for starting at 62

Worker's benefit: 5/9 of 1% per month for the first 36 months before full retirement age, plus 5/12 of 1% for each additional month. Spouse's benefit: 25/36 of 1% per month for the first 36 months, plus 5/12 of 1% for each additional month.

Year of birthReduction months at 62Worker: % reductionSpouse: % reduction
1937 or earlier3620.00%25.00%
19383820.83%25.83%
19394021.67%26.67%
19404222.50%27.50%
19414423.33%28.33%
19424624.17%29.17%
1943-19544825.00%30.00%
19555025.83%30.83%
19565226.67%31.67%
19575427.50%32.50%
19585628.33%33.33%
19595829.17%34.17%
1960 and later6030.00%35.00%

Few people can start at exact age 62 because you must be 62 throughout the first month of benefits, so most early retirees start at 62 and 1 month. Reduction months shown apply only if you were born on the 2nd of the month; otherwise one fewer. Source: SSA early reduction.

Delayed retirement credits

Year of birth12-month increaseMonthly increase
1933-19345.5%11/24 of 1%
1935-19366.0%1/2 of 1%
1937-19386.5%13/24 of 1%
1939-19407.0%7/12 of 1%
1941-19427.5%5/8 of 1%
1943 or later8.0%2/3 of 1%

Source: SSA delayed credits.

Working while getting benefits: the 2026 earnings test

Your situation in 2026Earnings limitWhat's withheld
Under full retirement age all year$24,480$1 withheld for every $2 of earnings above the limit
Reach full retirement age during 2026$65,160$1 withheld for every $3 of earnings above the limit (earnings in months before the month you reach full retirement age only)
From the month you reach full retirement ageNo limitNothing

Sources: SSA working while receiving · SSA exempt amounts.

2026 Social Security tax and the taxable maximum

Source: SSA taxable maximum.

Cost-of-living adjustment (COLA)

Source: SSA latest COLA.

Sources & as-of dates

FAQ

What is my full retirement age?

67 if you were born in 1960 or later; 66 for 1943–1954; it steps up by 2 months a year for 1955–1959 births (66 and 2 months through 66 and 10 months). If you were born on January 1, use the previous year (SSA normal retirement age table).

How does Social Security calculate my benefit?

SSA averages your highest 35 years of wage-indexed earnings into a monthly figure (AIME). For people first eligible in 2026, the primary insurance amount is 90% of the first $1,286 of AIME, plus 32% of AIME over $1,286 through $7,749, plus 15% over $7,749 (SSA, checked Oct. 13, 2026).

How much can I earn while getting Social Security in 2026?

If you're under full retirement age all year, $24,480; SSA withholds $1 for every $2 above that. In the year you reach full retirement age the limit is $65,160 for the months before that month, with $1 withheld per $3 over. From the month you reach full retirement age there's no limit. Withheld benefits are credited back when you reach full retirement age.

What is the Social Security wage base for 2026?

$184,500. Employees and employers each pay 6.2% OASDI tax on wages up to that amount (12.4% for self-employment income).

Does VaultRubric tell me when to claim?

No. We publish SSA's formulas and tables with dates. Your official estimates are in your my Social Security account at SSA.gov.

Facts, not financial advice, and not an SSA benefit estimate. Rules and amounts change yearly; check your own record and estimates at ssa.gov/myaccount.