Getting Marriage Certificates and Documents in Japan: A Complete Guide for Foreigners

Getting married in Japan as a foreigner involves navigating a paperwork process that is quite different from most Western countries. Unlike many countries where a wedding ceremony is the primary legal event, in Japan, your marriage becomes legally official only when you submit the correct documentation to your local municipal office. Whether you're a foreigner marrying a Japanese national or two foreigners marrying each other in Japan, this guide walks you through every document you need, where to get it, and what to expect at each step.

Understanding the Japanese marriage documentation process early saves you time, reduces stress, and helps you avoid common mistakes that can delay your registration. Let's break it all down clearly.

!Marriage registration documents at a Japan city hall

What Is the Konin Todoke (Marriage Registration Form)?

The Konin Todoke (婚姻届) is the central document for legally registering a marriage in Japan. This form is submitted to the municipal office (city hall, ward office, or town office) where either partner lives or where they plan to register. Once accepted, your marriage is legally recognized in Japan — no ceremony required.

Key points about the Konin Todoke:

• Two witnesses required: Two adults (Japanese or foreign nationals) must sign the form as witnesses.
• Both partners must sign: Both partners must sign the form. If both cannot be present at submission, the form can be submitted by one partner as long as both have already signed.
• Choose your date: The date you submit the form becomes your official wedding date, so many couples choose a meaningful date.
• Where to get it: Available free of charge at any municipal office or downloadable online from most city websites.
• Submission hours: Most offices accept Konin Todoke 24 hours a day, 365 days a year (documents submitted outside business hours are processed the next business day).

For more on living with a partner and understanding relationships in Japan, see our Complete Guide to Marriage and Relationships in Japan. For career resources and practical guidance on building your life in Japan, Ittenshoku offers useful tools for foreigners navigating Japanese systems.

Required Documents for Foreign Nationals

What you need depends on whether you are a foreign national marrying a Japanese citizen, or two foreign nationals marrying each other. Here is a full breakdown:

If You Are a Foreign National Marrying a Japanese Citizen

If Two Foreign Nationals Are Marrying Each Other in Japan

Both partners must each provide:

• Certificate of No Impediment (from each partner's respective embassy)
• Valid passport or residence card
• Birth certificate
• Japanese translations of all foreign-language documents

Because both partners are foreign nationals, the processing time may be longer, and some municipalities may require additional documentation. Always confirm in advance with your local office.

The Certificate of No Impediment: What It Is and How to Get It

The Certificate of No Impediment (婚姻要件具備証明書 / Konin Yoken Gubi Shomeisho) is one of the most important documents in the Japanese marriage registration process. This certificate, issued by your home country's embassy or consulate in Japan, confirms that you are legally free to marry — that you are not currently married and meet your home country's legal requirements for marriage.

How to get it:

1. Contact your embassy or consulate in Japan (most have marriage documentation services)
2. Bring your passport and any required supporting documents (varies by country)
3. Pay the fee — typically around ¥5,500, though this varies by nationality
4. Allow processing time — usually same-day to several business days

Important update for U.S. citizens: As of September 1, 2025, the U.S. Embassy and consulates in Japan no longer notarize "Affidavits of Competency to Marry." U.S. citizens must now download a specific PDF statement from the U.S. Embassy website to present to the city office in place of the old affidavit.

Always check your specific embassy's current requirements before your visit, as procedures can change. For general guidance on navigating Japan's bureaucracy as a foreigner, see our Complete Guide to Daily Life in Japan.

For more detailed guidance on international marriage procedures, Living in Nihon's International Marriage and Partnership Guide is an excellent resource.

Types of Japanese Marriage Certificates You Can Request

Many foreigners are surprised to learn that Japan does not automatically issue a "marriage certificate" after registration. You must request one separately. There are two types:

When would you need these?

• Reporting your Japanese marriage to your home country's embassy
• Applying for a spouse visa
• Changing your name on official documents
• Dealing with inheritance or other legal matters

You can request these certificates from the municipal office where you registered your marriage. You will typically need to show your ID and pay the fee. Processing is usually immediate.

For more details on marriage and the legal status of foreign spouses, For Work in Japan's Family Life Guide covers related topics for foreigners navigating Japanese family matters.

How Foreigners Appear in the Koseki (Family Register)

Japan's Koseki (戸籍) is the official family register system used to record births, marriages, deaths, and other vital events for Japanese citizens. Understanding how foreigners interact with this system is important.

Key facts about the Koseki and foreign nationals:

• Only Japanese citizens have their own Koseki entry.
• If you (a foreigner) marry a Japanese citizen, your name, date of birth, and nationality will be recorded in your Japanese spouse's Koseki — but you will not have your own Koseki.
• Two foreign nationals who marry in Japan do not create a Koseki; instead, the marriage is recorded in a separate foreigners' register (Gaikokujin Toroku, now incorporated into the Basic Resident Register).
• You can request a Koseki Tohon (全部事項証明書) or Koseki Shohon (個人事項証明書) from the municipal office. These certificates are official extracts from the family register, often required for visa applications. Cost: approximately ¥350–¥450.

After marriage, your Japanese spouse's Koseki will reflect the marriage. You may need to provide a copy of this document when reporting your marriage to your home country.

!Couple reviewing Japanese marriage documents

After Registration: What to Do Next

Registering your marriage at the municipal office is just the beginning. Here are the important steps to take afterward:

!After Registration: What to Do Next - illustration for Getting Marriage Certificates and Documents in Japan

1. Notify your home country's embassy or civil registry Marriage in Japan does not automatically register in your home country. You may need to bring your Japanese marriage certificates (translated if necessary) to your embassy to register the marriage at home. Requirements vary significantly by nationality.

2. Apply for a Spouse Visa (if applicable) If you plan to live in Japan long-term, you may need to apply for a Spouse of Japanese National visa or change your current visa status. This is handled through the Japan Immigration Services Agency (入国在留管理庁). Note that marriage alone does not grant you the right to remain in Japan.

For more on Japan visa processes, see our Complete Guide to Japan Visa and Immigration.

3. Update your Residence Card (Zairyu Card) If your name or address has changed, or if your visa status is changing, you'll need to update your residence card at your local immigration office or municipal office.

4. Consider name change implications Unlike Japanese nationals, foreigners do not automatically change their name upon marriage. If you wish to take your spouse's name, there are specific administrative procedures involved depending on your nationality.

5. Update health insurance and other registrations If your employment or dependent status changes after marriage, update your health insurance (Kenko Hoken), pension registration, and other social insurance records accordingly. See our Complete Guide to Healthcare in Japan for related information.

For a deeper look at family life in Japan after marriage, Japan Dev's guide to getting married in Japan offers practical advice from an expat perspective.

Common Mistakes and Tips for a Smooth Registration

To help you avoid frustrating delays, here are the most common mistakes foreigners make during the marriage registration process — and how to avoid them:

!Common Mistakes and Tips for a Smooth Registration - illustration for Getting Marriage Certificates and Documents in Japan

Mistake 1: Going to the wrong office You must submit to the municipal office of the area where either partner is registered as a resident (or where the Japanese partner's Koseki is held). Going to the wrong office means your paperwork won't be accepted.

Mistake 2: Forgetting to translate documents All foreign-language documents must include a Japanese translation. You don't need a certified professional translator — you (or anyone) can write the translation yourself — but names must be rendered in katakana.

Mistake 3: Witnesses not signing in advance If your witnesses cannot attend in person, make sure they have signed the form before submission day. Forgetting witness signatures is one of the most common causes of delays.

Mistake 4: Not checking your embassy's current requirements Embassy requirements and processing times change. Always confirm current procedures directly with your country's embassy before visiting.

Mistake 5: Assuming marriage grants a visa Marriage in Japan does not automatically grant you residency or a visa. You need to apply separately through the immigration authorities.

Practical tips:

• Call or visit your local municipal office in advance to confirm exactly what documents they require — requirements can vary by municipality.
• Bring extra copies of all documents just in case.
• Bring cash; most municipal offices do not accept credit cards for certificate fees.
• If you are nervous about language barriers, bring a Japanese-speaking friend or interpreter, or check if your municipality offers foreign language support.

For community support and advice from other foreigners who have gone through this process, JoynTokyo's Marriage in Japan for Foreigners guide and the broader expat community are excellent resources.

International Marriage in Japan: By the Numbers

To put the process in context, international marriage in Japan is more common than many people think:

The most common international marriages involving Japanese nationals include partnerships with Korean, Chinese, American, Filipino, and Brazilian nationals. With an aging population and increasing globalization, international marriages continue to be an important part of Japanese society.

For statistics and trends, see the Wikipedia article on Transnational Marriage in Japan and Nippon.com's overview of international marriage trends.

Summary: Documents Checklist

Before heading to your municipal office, use this checklist:

Getting married in Japan involves careful document preparation, but the registration process itself is relatively quick once everything is in order. By understanding what you need, confirming with your local municipal office, and staying up to date on your embassy's requirements, you can make the process smooth and stress-free.

For more guidance on life in Japan as a foreigner, explore our comprehensive guides on Moving to Japan, Working in Japan, and Banking and Finance in Japan.