Do I pay anything before my home sells?

Most of what a seller pays happens at closing, not before, since commission and most closing costs come out of the sale proceeds rather than out of pocket. You may choose to spend money earlier on repairs, cleaning, or staging to get the home ready, but those are optional decisions, not requirements. Closing costs still due at the table can include prorated property taxes and any transfer tax the contract assigns to the seller. Joel Boss can walk you through which costs, if any, come up before closing.