Marriage often raises a practical question: should spouses pool all their income and savings into shared accounts, or maintain separate finances? Research published in the Journal of Personality and Social Psychology in 2022, involving six studies and 38,534 participants, found that couples who pooled all their money reported greater relationship satisfaction and were less likely to break up than couples who kept some or all finances separate. However, couples also differ in income, debt, spending habits and expectations around financial independence. Should marriage mean sharing everything financially, or should each partner retain control over their own money?