Both applicants must be able to visit the County Clerk's office in person within 3 days of submitting your application in order to obtain your marriage license. You can either show up in person with your documentation in order to fill out your marriage license application or you can also submit your application online.Our guide covers everything you need to know to plan the wedding of your dreams, from Texas marriage license info to local venues and more. Effective September 1, 2024 the Dallas County Clerks office will no longer require appointments for marriage license. Walk-ins are welcome! Our guide explains how to apply for, fill out, sign and submit marriage licenses and lists the most important tips for wedding officiants and couples. After applying online for a marriage license, to complete the transaction both parties must appear together in our office within 10 calendar days. Fill out an application for a Texas marriage license. Take the oath printed on the Texas marriage license application. Fill out a marriage license application from your county clerk's website and go with your partner to the county clerk's office to turn it in.