How does a 'yours, mine, and ours' account setup work?

In this hybrid, each partner keeps a personal checking account and the couple opens a joint account for shared expenses. Each person contributes to the joint account – either equally or in proportion to income – and joint money covers rent, utilities, groceries, and shared goals. Whatever stays in your personal account is yours to spend without negotiation. The setup gives couples the teamwork of pooled money for big stuff and the autonomy of personal money for the small stuff, which cuts a lot of friction over individual purchases. Decide three things up front: how much each person sends to the joint account, what counts as a 'joint' expense, and how you'll handle big shared goals. Revisit the contribution amounts whenever either income changes.