Splitting bills 50/50 with your spouse or partner is very common. Generally, just agreeing to split 50/50 will alleviate the headache of finding another method. 50/50 works great when both partners have similar incomes and split resources equally. Your husband might eat more food while your wife might use more water.

Is it normal for couples to split bills?

When you're first living together, you're most likely to be splitting the bills down the middle or splitting them based on each of your incomes—and that's fine, for a while. “Sometimes when couples come to us, they are splitting the bills in proportion to their income,” Malani says.

How should bills be split in a marriage?

Some couples pay their household bills from a joint account to which both spouses contribute. ... For example, if one of you earns $75,000 a year and the other earns $25,000 a year, divide your shared expenses proportionately: The high earner pays two-thirds and the low earner pays one third of the household expenses.