Marrying a French Citizen,  Paperwork

Certificat de Capacité à Mariage: What You Need to Know

Last updated: 11 March 2026

certificat de capacité à mariage

Certificat de Capacité à Mariage: Step One in the French Marriage Process

If you landed here from the main post, you already know the shape of this journey. This is where it officially begins,  not with rings or venues or save the dates, but with a form, a consulate, and a trip to the local mairie.

Step One belongs entirely to your French partner.

What is the Certificat de Capacité à Mariage?

The certificat de capacité à mariage is an official document issued by the French government that confirms your French partner is legally free to marry. It is required any time a French citizen marries abroad, and without it, your marriage will not be recognised in France.

Part of this process involves something called the publication des banns. France is one of the few countries that still practices this tradition. For ten days, the announcement of your upcoming marriage is posted at your French partner’s local mairie, during which time anyone with a legal objection, an existing marriage, a family relationship, a question of consent, can come forward.

It sounds medieval. It is actually rather thorough. And it is not optional.

Once the banns have been posted without objection, your partner will receive the certificat. In our case, the process took the full eight weeks, which is exactly what they quote. My husband received the certificat 18 days after the banns were successfully posted so factor that into your timeline as well. The moment it arrived in the mail, he booked his plane ticket.

publication des bans
Our bans posted at le mairie

A note before you begin: I would not have known this process existed at all without my friend Berry, who had just gone through it herself for her own marriage. We set out from day one to do everything by the book, because we knew that any step missed could add months to our timeline. It paid off.

Where to Apply

Your French partner will need to apply through the French consulate that covers your region in the US. For us, everything went through the French Consulate of Washington D.C. We were able to find a website that detailed the process and also had the necessary application forms. 

The application form is in French and is submitted on behalf of your French partner. When in doubt about which consulate to contact, check the official French government website at service-public.fr for the most current guidance, as processes and contact details do change.

What You Will Need

Read this list carefully and then read it again. “When in doubt, apostille it” became my personal motto during this process and I stand by it.

For your French partner:

A complete copy of their birth certificate issued within the last three months from the mairie where they were born. A photocopy of both sides of their national ID card or passport. The questionnaire was filled out by both partners (two copies are provided in the application PDF).

For you (the non-French partner):

A sworn statement (form provided in the PDF). A certified and apostilled original copy of your birth certificate issued within the previous six months. A photocopy of your passport ID page. Proof of residence for both partners — a phone bill, electricity bill, or proof of rent works.

If applicable for either partner: proof of marital status.

A Word on Apostilles

An apostille is a certification that validates the origin of a document, the signature or seal of the person who signed it, and the manner in which it was produced. It is what makes your American documents legally valid in France. Each US state has its own apostille process — check your state’s Secretary of State website for details.

A Word on Birth Certificates

Ohio changed the format of their birth certificates and eliminated certain fields. The first copy I sent did not include my city of birth and was sent back. I had to obtain a copy of my original birth certificate that contained the required information. Check your birth certificate carefully before sending — make sure it includes every detail, especially city of birth. This applies to any state, not just Ohio — verify that your certificate includes all expected fields before you apostille and send it.

What Happens Next

Once your French partner has the certificat in hand, you can move forward with planning your wedding. After the wedding, you will need a certified copy of your American marriage license to begin the transcription process.

Head to Step Two for everything you need to know about the transcription de l’acte de mariage.

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