A marriage certificate costs only $6, making it one of the most affordable options. The fee is merely $5, but it is only available to couples who have obtained marriage licenses in Orleans Parish. In addition, each mail-in request is subject to a $0.50 state fee. - $15 for the first certificate, and $6 for each extra copy. If one or both spouses are Indiana citizens, the marriage license charge is $18; otherwise, it is $60.00 for out-of-state residents.