What impact do marriage and divorce have on wealth? US data from the National Longitudinal Survey of Youth (NLSY79), which tracks individuals in their 20s, 30s and early 40s, show that over time single respondents slowly increase their net worth. Married respondents experience per person net worth increases of 77 percent over single respondents. Additionally, their wealth increases on average 16 percent for each year of marriage. Divorced respondents’ wealth starts falling four years before divorce and they experience an average wealth drop of 77 percent. While in percentage terms divorce hurts women more than men, the absolute difference is relatively small in the US.