A huge amount of the money it "costs" to be single they get from splitting living costs. Turns out single people can and do have roommates. The next biggest ch

A huge amount of the money it "costs" to be single they get from splitting living costs. Turns out single people can and do have roommates. The next biggest chunk is from taxes saved by being married, using contrived earnings. Turns out, that it varies wildly depending on how much each person makes. There are certainly some amounts of money where you pay less taxes being married, but there are quite a few others where it costs far more. It just depends on where you fall in the tax bracket. (Generally if both spouses make a similar amount of money the tax code hurts them, if one makes significantly more it helps.)