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For a growing number of baby boomers, retirement is bringing an unexpected life change: divorce.

Often called “gray divorce,” the breakup of marriages among adults in their 50s, 60s, and beyond has emerged as a significant demographic trend in the United States. While younger generations have generally become less likely to divorce, older adults are increasingly willing to end marriages that may have lasted for decades.

Researchers have documented a striking long-term shift. The divorce rate among Americans age 50 and older roughly doubled between 1990 and 2010, according to research by sociologists Susan L. Brown and I-Fen Lin of Bowling Green State University. 

Subsequent research has shown that divorce among older adults remains far more common than it was a generation ago, with the trend particularly notable among people 65 and older.

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Why couples are splitting after decades together

There is no single explanation for the rise in late-life divorce.

Baby boomers came of age during an era when attitudes toward marriage and divorce were changing dramatically. Many have already experienced divorce earlier in adulthood, and remarriages generally carry a higher risk of ending than first marriages.

Longer life expectancy may also change the calculation. Someone reaching their early 60s could potentially have decades of life ahead, making an unhappy marriage feel less like something that simply has to be endured.

Retirement itself can become a turning point. Couples accustomed to spending much of the day apart may suddenly find themselves together almost constantly. Differences over money, travel, where to live, or how to spend retirement can become harder to overlook.

At the same time, greater financial independence among women has made divorce a more realistic option for some older spouses who might once have felt economically unable to leave.

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A divorce can upend retirement plans

Ending a marriage at 65 is financially different from ending one at 35.

Younger divorcees typically have years or decades to rebuild savings and recover from the cost of dividing a household. Baby boomers approaching or already in retirement have considerably less time.

A couple that expected to fund one household may suddenly need to support two. Housing expenses can rise, retirement accounts may be divided, and legal fees can consume savings at precisely the point when earning potential is declining.

Women can be especially financially vulnerable following a late-life divorce because they have historically been more likely to have interrupted careers or lower lifetime earnings.

Social Security is another important consideration. Under certain circumstances, a divorced person can qualify for benefits based on a former spouse’s earnings record, including when the marriage lasted at least 10 years. The rules are complex, however, and eligibility depends on factors including age and marital status.

Divorce can also require a wholesale review of estate planning. Beneficiary designations on retirement accounts and insurance policies, wills, powers of attorney, and health care directives may all need attention after a marriage ends.

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Adult children feel the effects, too

The emotional consequences of gray divorce can ripple across generations.

Although divorcing parents of adult children do not face custody battles, their children may still struggle with the breakup of the family structure they have known for decades. Holidays, weddings, and grandchildren can suddenly require complicated decisions about who gathers where — and whether former spouses can comfortably be in the same room.

Older divorcees may also have to rebuild social networks. Friendships developed as a couple can shift after a separation, while dating after decades of marriage presents an unfamiliar landscape.

Yet for some boomers, divorce represents an opportunity rather than simply a loss. With children grown and careers winding down, people may feel freer to pursue relationships, interests, or lifestyles they postponed earlier in life.

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A new picture of retirement

For decades, the popular image of retirement centered on married couples growing old together after raising children and finishing their careers. Gray divorce is complicating that picture.

As the enormous baby-boom generation moves deeper into retirement age, financial planners, attorneys, housing providers, and families are increasingly confronting the practical consequences of older Americans starting over.

For couples contemplating divorce after decades together, the stakes can be unusually high. There may be fewer working years available to recover financially, but potentially many years of retirement still ahead.

That combination is turning late-life divorce from an unusual event into an increasingly visible part of how Americans experience aging — and forcing a generation that transformed marriage earlier in its life to reconsider what it means to grow old together.