Social Security Retirement Benefits 2026: How Your Amount Is Calculated and When to Claim

Social Security retirement benefits are the foundation of retirement income for most Americans, yet the rules governing how those benefits are calculated and when to claim them are surprisingly misunderstood. Claiming at the wrong time costs some people tens of thousands of dollars in lifetime benefits. Others who delay unnecessarily never live long enough to break even. The right answer depends entirely on your health, your financial resources, your spouse's situation, and what other income you have in retirement. Getting this decision wrong is also largely irreversible, so understanding it thoroughly before you file is time well spent.

How Social Security Calculates Your Monthly Benefit

The Social Security Administration uses your highest 35 years of earnings, adjusted for wage inflation over your lifetime, to compute your Average Indexed Monthly Earnings (AIME). If you worked fewer than 35 years, zero-income years are included in the average, which lowers your benefit. This is why working at least 35 years matters financially, and why someone who worked 38 years but is considering retiring at 60 might want to consider two more working years if the last two would replace earlier low-earning years in the calculation.

The AIME is then run through a formula that calculates your Primary Insurance Amount (PIA), which is your benefit at full retirement age. The formula is progressive, meaning it replaces a higher percentage of earnings for lower earners. For 2026, the formula replaces 90% of the first $1,226 of AIME, 32% of AIME between $1,226 and $7,391, and 15% of any AIME above $7,391. The result is the PIA. You can see your current earnings record and get an estimate of your projected benefit at ssa.gov by creating a my Social Security account.

Full Retirement Age in 2026 and Why It Is Not 65

Full retirement age is the age at which you receive 100% of your PIA. For everyone born in 1960 or later, full retirement age is 67. For people born between 1955 and 1959, full retirement age phases in from 66 years and 2 months up to 66 years and 10 months. The commonly held belief that Social Security's full retirement age is 65 is outdated. Congress raised the age starting in 1983, and the change is now fully phased in for most people currently approaching retirement.

This matters because every decision about early or delayed claiming is anchored to your full retirement age. Claiming early reduces your benefit as a percentage of PIA starting from full retirement age going backward. Delaying past full retirement age earns you delayed retirement credits going forward. Use our Social Security calculator to see your estimated benefit at 62, 67, and 70 based on your earnings history.

Claiming at 62 vs Waiting Until 70: The Real Numbers

You can claim Social Security as early as age 62, but doing so permanently reduces your monthly benefit. For someone whose full retirement age is 67, claiming at 62 cuts benefits by 30%. Claiming at 64 cuts by about 20%. These reductions are permanent and apply for life, including to your survivor benefit available to your spouse.

On the other end, delaying past full retirement age earns you 8% more per year until age 70. Waiting from 67 to 70 increases your monthly benefit by 24%. If your full retirement age benefit would be $2,000 per month, claiming at 62 gives you $1,400 per month and waiting until 70 gives you $2,480 per month. That $1,080 per month difference, sustained over a long retirement, is enormous in total dollars. Someone who lives to 90 and delays to 70 collects roughly $130,000 more in lifetime benefits than someone with the same record who claims at 62, not accounting for cost of living adjustments.

The Break-Even Analysis: How Long Until Delaying Pays Off

The break-even point is the age at which total lifetime benefits from delayed claiming surpass total lifetime benefits from early claiming. Breaking even between claiming at 62 versus 67 typically happens around age 79 to 81, depending on your specific reduction factors. Breaking even between 67 and 70 typically happens around age 82 to 83.

If you have serious health problems and realistically expect to live only into your mid-70s, claiming early usually produces more total dollars. If you are in excellent health and have family history suggesting longevity, delay often wins clearly. The complication is that most people do not know how long they will live, which is why so much of the claiming-age advice incorporates a risk management dimension: delaying to 70 functions as longevity insurance against the risk of outliving your money.

Spousal Benefits and Divorced Spouse Benefits

A spouse who either did not work or earned substantially less than their partner can claim a spousal benefit equal to up to 50% of the higher earner's full retirement age benefit. This is available starting at age 62 but is reduced for early claiming just like regular benefits. The spousal benefit is paid on top of any benefit earned by the lower earner in their own right, but only if the spousal benefit is larger.

Divorced spouses can claim on an ex-spouse's record if the marriage lasted at least ten years, both parties are currently unmarried, and the claimant is at least 62. You do not need the ex-spouse's permission or even cooperation. The divorced spouse benefit does not reduce the ex-spouse's own benefit in any way. If the ex-spouse has died, the surviving divorced spouse may qualify for a survivor benefit of up to 100% of the deceased's benefit.

Working While Collecting Social Security: The Earnings Test

Collecting Social Security while still working below full retirement age subjects you to the earnings test. In 2026, if you are under full retirement age for the entire year, Social Security withholds $1 in benefits for every $2 you earn above $22,320. In the year you reach full retirement age, the threshold is higher and the withholding rate is lower: $1 for every $3 earned above $59,520. Once you reach full retirement age, the earnings test disappears entirely. You can earn any amount without any reduction in benefits.

Importantly, benefits withheld due to the earnings test are not lost permanently. After you reach full retirement age, Social Security recalculates your benefit to credit you for the months benefits were withheld, resulting in a higher monthly payment going forward. This payback mechanism makes the earnings test less punishing than it appears, though the timing of cash flows still matters for people who need the income now.

How Social Security Benefits Are Taxed

Up to 85% of Social Security benefits are taxable at the federal level depending on your combined income, which the IRS defines as your adjusted gross income plus nontaxable interest plus half of your Social Security benefits. If your combined income is between $25,000 and $34,000 as a single filer, up to 50% of benefits may be taxable. Above $34,000, up to 85% is taxable. For married couples, the thresholds are $32,000 to $44,000 for the 50% tier and above $44,000 for the 85% tier.

These thresholds have not been adjusted for inflation since they were set in the 1980s, which means more beneficiaries pay taxes on Social Security today than Congress originally intended. Roth IRA withdrawals do not count toward combined income for this test, which is one reason tax advisors often recommend converting traditional IRA funds to Roth accounts before retirement. For related retirement planning, see our guide on when you can retire, our retirement calculator, and how Medicare costs fit into the retirement picture in our Medicare benefits guide.