Women who retire when their husbands do may be giving up more wealth than they realize. Married women overall are still in their peak earning years in their 50s and early 60s, while married men's earnings are on the decline, said economist Nicole Maestas, an associate professor of health care policy at Harvard Medical School and the author of a recent study about couples' income and retirement patterns.
As a result, married women typically sacrifice more Social Security wealth than married men when they retire early, said Maestas, who analyzed the University of Michigan's Health and Retirement Survey of more than 20,000 people 50 and older.
Social Security benefits are based on a person's 35 highest-earning years, so each additional year an older married woman works could replace an earlier year when her income was lower or she took time out of the workforce — for instance, to raise children.
Because older married men are typically past their peak earning years, the same is not true for them, Maestas found.
But women do typically retire at the same time as their husbands, Maestas said. Since women in heterosexual couples typically marry men two or three years older, that means married women leave the workforce at younger ages.
Women face extra risks
Earlier retirements also mean less time to save for retirements that can stretch decades. That should give women pause, said Jean Setzfand, senior vice president of programs for AARP.
"We live longer. We spend more years in retirement. There are more years we have to consider financing," Setzfand said.
Women's longer life expectancies mean they're likely to outlive their husbands, and they're at greater risk of outliving their savings. Women are 80 percent more likely than men to live in poverty after age 65, according to the National Institute on Retirement Security.