Super upfront about everything.Do not live with someone you don’t feel comfortable talking about money with. Know costs of everything before moving in together. Both people have to be cool with it. Decide on splitting. BOTH names on everythingI pay bills. He pays me 3 days before they’re due. Budget for things we split. (Groceries)Talk about any big purchase ahead of time. (Honestly we bought things desperately ahead of time).Buy our own stuff separately.Have a card that we put all of our entertainment, gas, dinner, etc on and then split that at the end of the month.Open with our own personal financesSeparate finances, same goals“Owe” each other as little as possible Money dates