Prenuptial and postnuptial agreements are legal contracts designed to outline the handling of marital assets in cases of divorce or death. Both agreements cover similar topics, such as the division of financial assets, alimony provisions and, in some cases, retirement benefits such as pensions. The key distinction between the two is timing: a prenuptial agreement, or “prenup,” is signed before marriage, while a postnuptial agreement, or “postnup,” is signed after. When considering a prenup vs. postnup, each type has unique pros and cons, along with some other additional differences that couples will want to take into account.