Social Security

Social Security is the foundation under nearly every American retirement. About 70 million people receive a benefit, roughly 185 million workers pay into the system ⁸, and as of the end of 2025 about 87 percent of Americans 65 and older collect a monthly check ³. The program is not designed to replace a paycheck by itself: for a middle earner claiming at full retirement age, benefits replace roughly 40 to 43 percent of career-average earnings depending on birth year, more for lower earners and less for higher ones ⁹. Everything else, savings, pensions, work, builds on that base.

The rules can look impenetrable from the outside, but the program rests on a few ideas that have not changed since the 1930s. You earn coverage by working and paying payroll taxes. Your benefit is calculated from your lifetime earnings by a formula that favors lower earners. Benefits last for life, rise with inflation, and extend to spouses, survivors, and dependent children.

This article covers the mechanics: where the program came from, how it is funded, who qualifies, how the benefit is computed, and what happens on the tax and solvency fronts. The separate question of timing, which can change your monthly check by hundreds of dollars, is covered in when to claim Social Security.

Social Security in 2026#

All figures are from the Social Security Administration's 2026 fact sheet ¹.

Sources for this section: [1]

Where the program came from#

President Franklin Roosevelt signed the Social Security Act on August 14, 1935, in the middle of the Depression, when poverty among the elderly was widespread and private pensions were scarce. Payroll taxes were first collected in 1937, and monthly benefits began in 1940 ¹⁰. The first monthly check, for $22.54, went to Ida May Fuller, a retired legal secretary from Vermont; she lived to 100 and collected benefits for 35 years ²¹⁰.

Congress has rebuilt the program several times since. Amendments in 1939 added benefits for wives, widows, and children, turning a worker's pension into family insurance. Disability benefits arrived in 1956. A 1972 law made cost-of-living increases automatic starting in 1975, ending the practice of Congress voting ad hoc raises. The 1983 amendments, the last major overhaul, gradually raised the full retirement age from 65 to 67 and made benefits partly taxable ¹⁰, changes whose effects are still phasing through the system today.

Sources for this section: [2] [10]

How Social Security is funded#

Social Security runs mostly on a dedicated payroll tax. Employees pay 6.2 percent of wages and employers match it; self-employed people pay both halves, 12.4 percent. The tax applies only up to an annual cap, $184,500 in 2026, which rises with average wages ¹. Earnings above the cap are neither taxed nor counted toward benefits. Two smaller streams round out the funding: income taxes that some beneficiaries pay on their benefits, and interest on the program's trust fund reserves.

The design is mostly pay-as-you-go. Today's payroll taxes fund today's checks, unlike a 401(k), where your contributions sit in an account with your name on it. Surpluses accumulate in two trust funds, one for retirement and survivor benefits (OASI) and one for disability (DI), which are invested in special-issue Treasury securities. That structure worked smoothly while workers greatly outnumbered beneficiaries; the strains that emerge as the ratio falls are covered below.

Sources for this section: [1]

Who qualifies#

You qualify for retirement benefits by earning 40 work credits, which for most people means about ten years of covered work. In 2026 you receive one credit for each $1,890 in covered earnings, up to four credits a year, so $7,560 earns the year's maximum ¹. Credits only determine whether you qualify; the size of your benefit depends on your earnings history, not your credit count.

Retirement benefits can start as early as 62. Family members can qualify on your record too: a spouse or ex-spouse, a widow or widower, dependent children, and in some cases dependent parents. A small number of workers, mostly in state and local government jobs that never joined the system, remain outside Social Security and rely on a public pension instead.

Sources for this section: [1]

How your benefit is calculated#

The formula runs in three steps, and each has a name you will see on statements and in news coverage.

First, the Social Security Administration takes your highest 35 years of earnings, indexes each year to wage growth so that a salary from 1990 counts at its modern equivalent, adds them up, and divides by 420 months. The result is your average indexed monthly earnings, or AIME. If you worked fewer than 35 years, zeros fill the empty slots and pull the average down.

Second, a progressive formula converts AIME into your primary insurance amount (PIA), the benefit you would receive at full retirement age. The formula has two "bend points" that are updated each year for wage growth ⁴. For workers turning 62 in 2026:

The bracket structure is why Social Security replaces a much larger share of a modest paycheck than a large one. A worker whose AIME is $2,000 gets a PIA of about $1,386, nearly 70 percent replacement; a worker with an AIME of $10,000 gets about $3,563, closer to 36 percent.

Third, your claiming age adjusts the number. Claiming before your full retirement age, which is 67 for everyone born in 1960 or later, permanently reduces the check, to as little as 70 percent of PIA at 62. Waiting past full retirement age adds 8 percent a year up to age 70, or 124 percent of PIA. The details, and how to think about the choice, are in the claiming article linked above; the milestone ages themselves are laid out in retirement age. In 2026 the maximum benefit for someone claiming at full retirement age is $4,152 a month, a figure that requires earning at or above the taxable cap for 35 years ¹.

Benefits are recalculated if you keep working and a new year of earnings displaces a lower year in your top 35, one reason working in retirement can nudge a benefit upward.

Sources for this section: [1] [4]

Cost-of-living adjustments#

Each October the Social Security Administration compares third-quarter inflation, measured by the CPI-W index, with the same quarter a year earlier, and the percentage difference becomes the next January's cost-of-living adjustment. The COLA for 2026 is 2.8 percent, which raised the average retired-worker check by about $56 a month ¹. Adjustments track inflation rather than generosity: the same mechanism produced increases above 8 percent when inflation spiked in the early 2020s and produced no increase at all in a few flat years. Because the COLA is a percentage, it compounds on whatever base benefit you have, which is one of the quieter arguments people weigh when deciding how long to wait before claiming.

Sources for this section: [1]

Spousal, survivor, and divorced-spouse benefits#

Social Security is family insurance, and the family provisions are where money is most often left on the table.

A few rules do a lot of work here. Spousal benefits top out at half of the worker's full-retirement-age amount and do not grow if the spouse waits past their own full retirement age. Survivor benefits, by contrast, can equal 100 percent of what the deceased worker was receiving, including any delayed-retirement credits, so the claiming decision of a couple's higher earner sets the check the surviving spouse will live on ⁵. Survivor eligibility has tests of its own: the marriage generally must have lasted at least nine months before the death, and remarrying before 60 (50 with a disability) usually ends eligibility, while remarrying after 60 does not ¹¹.

One record also has a ceiling. Total payments to a family are capped by a family maximum, computed from the worker's PIA by a separate bracket formula ¹², and SSA may lower everyone's payments to stay under the limit; an ex-spouse's benefit does not count toward the cap ⁵.

Divorced spouses are a frequent surprise: if the marriage lasted ten years and you have not remarried, you can receive benefits on your ex's record, your ex does not need to have claimed yet if the divorce is at least two years old, and your benefit takes nothing away from theirs or their current family's. For decades, many government retirees saw these family benefits reduced or erased by the Government Pension Offset; the Social Security Fairness Act of January 2025 repealed that offset along with the Windfall Elimination Provision, a change described in the article on pensions.

Sources for this section: [5] [11] [12]

How benefits are taxed#

Up to 85 percent of your Social Security can count as taxable income on your federal return ¹³. The test uses "combined income": your adjusted gross income, plus tax-exempt interest, plus half of your benefits ⁶.

Those thresholds were set in 1983 and 1993 and are not indexed for inflation, so each year a somewhat larger share of beneficiaries owes tax on benefits. The One Big Beautiful Bill Act, the tax law signed in July 2025, softened the bite without changing the formula: from 2025 through 2028, taxpayers 65 and older can claim an extra $6,000 deduction each ($12,000 for a qualifying couple), phasing out above $75,000 of modified adjusted gross income for singles and $150,000 for joint filers ⁷. The deduction lowers taxable income generally rather than exempting benefits as such, and it is scheduled to expire after 2028. Most states tax no Social Security at all, and the short list that still do keeps shrinking. Withholding, estimated payments, and the interaction with other retirement income are covered in taxes in retirement.

Sources for this section: [6] [7] [13]

The trust fund outlook#

The financing question gets more attention than any other part of the program, and it is worth stating precisely. The trustees' June 2026 report projects that the retirement trust fund (OASI) will deplete its reserves in the fourth quarter of 2032; incoming payroll taxes at that point would cover 78 percent of scheduled benefits ⁸. Counting the disability fund as well, the combined depletion date is 2034, with 83 percent of benefits payable ⁸. The disability fund on its own is projected to stay solvent throughout the 75-year projection window.

Depletion does not mean the program stops. Payroll taxes keep arriving with every paycheck, so the honest description of the risk is an across-the-board cut of roughly a fifth in the early 2030s if Congress does nothing. Congress has never let that happen; the 1983 amendments passed months before a similar deadline. The options are the same as they were then, some mix of higher payroll taxes, a higher wage cap, benefit formula changes, and a higher retirement age, and every year of delay makes the eventual fix larger. For someone planning today, the reasonable reading is that benefits for current and near retirees have strong political protection, while younger workers may see changes phased in over decades. Claiming early out of fear of the headlines locks in a permanent reduction to hedge a cut that remains hypothetical, a tradeoff examined in the claiming article.

Sources for this section: [8]

How to apply#

You can apply for retirement benefits online at ssa.gov, by phone at 1-800-772-1213, or at a local field office, and the Social Security Administration recommends applying up to four months before you want benefits to begin. Have your Social Security number, birth certificate, recent W-2 or self-employment tax return, bank information for direct deposit, and, if relevant, marriage or divorce records. Benefits for a given month are paid the following month, on a Wednesday set by your birth date. Payment itself is electronic: since September 30, 2025, federal law and an executive order have required federal benefits to be paid electronically, and the last paper checks are being phased out ¹⁴. Money arrives by direct deposit or, for people without a bank account, on the Direct Express prepaid debit card; someone who cannot switch, for example in a remote area with no access to a bank, can request a waiver through the Treasury Department ¹⁴.

Before you apply, it is worth opening a my Social Security account at ssa.gov and reviewing your earnings record, since a missing year of wages quietly shrinks your benefit and is far easier to fix while the employer's records still exist. The account also shows benefit estimates at different claiming ages, replacing the paper statements most people remember. General guidance on fitting the pieces together lives in retirement planning.

Caution: The Social Security Administration will not call to threaten arrest, suspend your Social Security number, or demand payment by gift card, wire transfer, or cryptocurrency. Impersonation calls and texts are among the most common frauds aimed at older adults; see scams that target seniors for the warning signs and how to report them.

Sources for this section: [14]

RetiredWiki. (2026, July 18). Social Security. https://retiredwiki.com/article/social-security