Divorced After 12 Years? You Can Claim Half Your Ex’s Social Security Without His Knowledge

A 66-year-old woman divorced 12 years ago after a 14-year marriage has a Social Security benefit of about $1,200 a month at her full retirement age  (FRA) of 67. Her ex-husband, the higher earner, receives roughly $3,200 monthly. What she may not realize is that she can claim on his earnings record without his knowledge or cooperation, leaving his check untouched.

This blind spot appears routinely in retirement forums. Most people on these platforms assume the door closed when the marriage ended, but the divorced-spouse benefit remains intact for years afterward.

The rule that changes the math

A divorced spouse can draw on an ex’s earnings record if four conditions are met: the marriage lasted at least 10 years, she is currently unmarried and at least 62, and the ex is at least 62. The ex doesn’t have to have filed for benefits, as long as the divorce finalized two or more years ago. Social Security will not contact him, and his benefit stays the same.

Social Security pays the higher of her own benefit or the ex-spousal benefit, not both. At her full retirement (FRA) age of 67, that benefit equals 50% of her ex’s primary insurance amount, or $1,600 a month against his $3,200. Compared to her own $1,200, that’s a gain of $400 per month, or $4,800 a year, for life.

One phone call and a single form can raise her income by roughly the cost of a decent used car, every year, indexed for inflation.

Why timing still matters

The 50% figure only applies if she waits until her FRA. Filing earlier shrinks the spousal portion meaningfully. The Social Security Administration (SSA) pays divorcees roughly 72% of the spousal amount at age 62, climbing to 100% at full retirement age. On her $1,600 target, starting at 62 instead of 67 leaves her with roughly $1,140, about $460 short every month. That gap compounds across a 25-year retirement.

Cost-of-living adjustments (COLAs) then ride on whichever benefit she collects. With CPI running at 330.3 in March 2026, up from 320.6 a year earlier, a 3% COLA on $1,600 puts more money in her pocket than the same rate on $1,200, every year.

How this lands in the rest of her retirement

If her ex dies first, the divorced-spouse benefit converts to a divorced-survivor benefit worth up to 100% of his benefit. That could mean $3,200 a month instead of $1,600. For women who outlive their ex-husbands, this is the long-tail prize and a reason not to remarry casually. Remarriage before age 60 shuts off the survivor option unless that relationship also ends.

The extra $4,800 a year can push a retiree across the threshold where Social Security itself becomes taxable. The combined-income formula, which counts half of benefits plus other earnings, starts taxing benefits at $25,000 for a single filer. A higher benefit and a 401(k) withdrawal in the same year can push more income into taxable territory. Worth modeling before pulling the trigger on big IRA distributions.

What to think through before filing

1. Confirm eligibility on paper. Pull the divorce decree and marriage certificate. Ten years of marriage is the bright line. Nine years and 11 months gets nothing.
2. Get the ex’s benefit estimate. Social Security will share it once you apply, even if he has not filed. If his benefit is close to or below twice yours, the spousal route may not help and your own record wins.
3. Wait to full retirement age if you can. Locking in a permanently reduced benefit at 62 when a few more years would mean hundreds more per month for life is the hardest mistake to undo.

Every divorce file looks different, and the interaction with pensions, remarriage history, or a deceased ex can shift the answer. The point is simply that this benefit exists, it is hers to claim, and ignoring it is the costliest oversight in this scenario.