The number of unmarried couples who live together reached 18 million in 2016, a 29% jump from 14 million in 2007, according to the Pew Research Center. Among adults age 50 and older, however, the increase was 75%: About 4 million were cohabiting in 2016, up from 2.3 million in 2007.
Although the arrangement has gained broad societal acceptance, according to a separate Pew Research report, such couples still face some key differences from their married counterparts. For example, filing a federal tax return as a couple is not possible. Or, if your employer happens to extend health insurance to your partner, the amount your company contributes is taxable to you (vs. being tax-free for a spouse).
As a result of these difference, end-of-life considerations need some attention.