Couples who keep different last names after tying the knot divorce at higher rates and often part ways sooner than those who share a surname.That finding comes from an analysis by the Institute for Family Studies, which looked at 2023 Pew Research Center data along with Texas divorce records. The New York Post reported on the study this week.
Higher divorce rates and shorter marriages
Spouses with different last names end their marriages at a 50% higher rate than couples who share a name. On average, those with separate surnames stay together just eight to 10 years before filing for divorce. Couples who take the same last name tend to last about 12 years before any split, according to the report.Lyman Stone, who wrote the analysis, pointed to a simple idea: “Couples who hold more things in common- from names to money are more likely to take a ‘team first approach’ to marriage life that reinforces cooperation, trust and the sense of a common future”.He also noted that non-shared names sometimes point to rushed decisions. “Obviously couples who do not share a last name will include some very thoughtful partners who are philosophically opposed to taking the husband’s last name, but it will also include a lot of couples who got married on the spur of the moment and who couldn’t be bothered to get their paperwork in order,” Stone suggested as per The New York Times. Quick elopements or shotgun weddings may play a role in some of those cases.
Paperwork and practical barriers
The report also raised a practical point. Changing a legal name is a real hassle, filled with forms and updates across banks, licenses, and other records. For couples who already share a surname, the idea of changing back to a maiden name later can feel like one more burden. That extra step may discourage some from filing for divorce at all. Stone suggested bureaucratic hurdles shape divorce rates in quiet but powerful ways.Overall, about 75 to 80 percent of married couples in the United States share a last name. The choice is more common among certain groups. Conservative, white, and older women are more likely to take their spouse’s name. Among women over 50, about 86 percent changed their maiden names, compared with 74 percent of those under 29 according to the Institute of Family Studies. Education levels matter too. Women with a high school diploma took a spouse’s name at a rate of 85 percent, while the figure dropped to 76 percent among college graduates.
What the numbers show and what they don’t
The Institute for Family Studies analysis did not spell out the exact divorce rate for couples with different names versus the same ones. Stone and the institute did not immediately respond to questions from the New York Post about the findings.The study does not claim that a shared last name alone keeps a marriage together. It shows a clear pattern in the data: couples who share a surname tend to stay married longer and divorce less often. Whether that comes from shared values, practical barriers, or the kinds of people who choose one path over the other remains an open question.
