Whether you need witnesses to get married at the courthouse depends on the state where you’re getting your marriage license. About 22 states require at least one witness at the ceremony, and the rest have no witness requirement at all. There’s no federal marriage law, so the rule that applies to you is set by the state — and confirmed by the county clerk — where you’re marrying.
Which States Require Witnesses
Of the roughly 22 states that require witnesses, about 20 ask for two adult witnesses and two ask for just one. Everywhere else, the ceremony is legally complete with only the couple and the officiant present.
A few states add wrinkles worth knowing about. In some, the requirement depends on which type of marriage license you get: a standard public license may need a witness, while a confidential license available to couples who want more privacy waives the requirement. A small number of states also allow “self-uniting” marriages, a tradition rooted in Quaker practice, where no officiant is needed and the couple marries in the presence of witnesses alone. These options are uncommon but real.
Legislatures update these rules periodically, so a general list is only a starting point. Always confirm the current requirement directly with the county clerk where you plan to marry. A quick phone call or a check of the clerk’s website the week before the ceremony is worth more than any general guide.
Who Qualifies as a Witness
The rules on who can serve are simple in every state that requires one. Most states require the witness to be at least 18. A few set no minimum age and instead ask only that the person be mature enough to understand they’re watching a legal marriage take place and capable of signing their name.
Beyond age, the witness must be mentally competent, meaning they grasp that the couple is voluntarily entering a legal marriage. That’s the entire bar.
Family members are perfectly fine as witnesses. No state has a rule barring a parent, sibling, or other relative from serving. Friends, coworkers, and anyone else who meets the age and competency requirements also qualify. The witness doesn’t need to know the couple personally or have any special relationship to them. Their role is to observe the ceremony and sign the marriage license as confirmation it happened.
What to Do If You Don’t Have a Witness
This comes up constantly, especially for couples eloping or marrying away from their home area. Courthouses see it all the time, and most have informal solutions in place.
Ask the Courthouse Staff
The simplest option is asking the clerk’s office whether an employee can step in. Many courthouses will provide a staff witness on request. Some charge a small fee for this, typically somewhere in the range of $25 to $60, while others treat it as part of the service. Call ahead to ask whether the courthouse provides witnesses and what it costs, because not every location offers this.
Ask Someone Already at the Courthouse
If the courthouse doesn’t provide staff witnesses, asking a friendly stranger in the building works just as well. Someone waiting for their own appointment or another couple getting married that same day will often agree. This is completely legal as long as the person meets the basic age and competency requirements. Courthouse regulars such as attorneys, clerks, and security staff are usually willing to help and have done it dozens of times.
Bring Your Own
If you’d rather not leave it to chance, bring anyone who meets the age and competency requirements. A friend, a coworker, a neighbor, or a relative all work. The witness doesn’t have to know either of you well; they just need to be present for the ceremony and sign the license afterward.
Confirm the Rule for Your County Before the Ceremony
Because witness rules are set state by state — and because a handful of states vary the requirement by license type — the safest move is to verify with the county clerk where you’ll be marrying. Ask three specific questions:
- Does this state require witnesses, and if so, how many?
- Does the requirement depend on the type of marriage license we’re getting?
- If we don’t bring witnesses, can the courthouse provide them, and is there a fee?
Getting clear answers ahead of time prevents the one scenario nobody wants: arriving for your appointment, license in hand, and being told the ceremony can’t proceed because you’re a witness short.
Where the Witnesses Come In During the Ceremony
A judge, magistrate, justice of the peace, or deputy clerk performs a brief civil ceremony, usually lasting about 10 to 20 minutes. The officiant asks both of you to declare your intention to marry, leads an exchange of vows, and pronounces you married. At that point, you, the officiant, and your witnesses (if the state requires them) sign the marriage license. That signature is the witness’s entire legal function — confirming on paper that the ceremony took place.
Once signed, the license goes back to the county clerk or recorder’s office for official filing. In most states, this is the officiant’s legal responsibility, not yours, and 10 days after the ceremony is a common filing window. Your marriage is legal the moment the ceremony ends, but it isn’t officially recorded until the signed license is filed. If a courthouse officiant handles your ceremony, filing usually happens automatically the same day. If you used an outside officiant, follow up within a couple of weeks to confirm the license was returned and recorded. A quick call to the clerk’s office is enough to verify.
A Note on Self-Uniting Marriages
If you’re drawn to an especially private ceremony, ask the clerk whether your state recognizes self-uniting marriages. In the states that allow them, the couple marries in the presence of witnesses alone, without an officiant. The witness requirement in that setting is doing more than paperwork — the witnesses are effectively standing in for the officiant, so their presence is the ceremony. This is a narrow option that isn’t available in most states, but where it exists it’s a legitimate route.