Same-Sex Marriage in Thailand: Rights, Registration & the Marriage Equality Act

Last updated on 18 September 2026

Is Gay Marriage Legal in Thailand? Yes, Thailand legalized same-sex marriage on January 23, 2025. This makes Thailand the first Southeast Asian nation to grant marriage equality, and the third in Asia (after Taiwan and Nepal). If you’re planning to marry a same-sex partner in Thailand, relocate as a couple, or understand your rights here, this guide covers everything from the law itself to property rights, adoption, and cross-border recognition.

Selected registration, inheritance, medical-consent and fee statements were checked against official sources on 18 September 2026. This correction does not certify every older statement on the page. For registration documents and charges, consult the current DOPA guide.

Thailand’s Marriage Equality Act: What Changed on January 23, 2025

The Marriage Equality Act B.E. 2567 (Amendment No. 24 to the Civil and Commercial Code) became law on September 24, 2024, and took effect on January 23, 2025. On that first day alone, 1,754 same-sex couples registered marriages. By January 2026, the number had reached 26,287.

Here’s what actually changed in the law. The Thai Civil and Commercial Code once defined marriage as between “husband and wife.” Those gendered terms excluded same-sex couples. The new law replaced those gendered terms with gender-neutral language throughout 60+ sections. “Spouses” replaced “husband and wife.” “Individuals” replaced “men and women.” The result is that Thai marriage law now applies equally regardless of the gender of either person.

The amendment touched seven core areas: marriage formation, marital property rights, inheritance and succession, spousal maintenance, parental power and adoption, divorce, and legitimacy of children. Most gendered wording was replaced, but not all of it, and the exceptions matter. Section 1453, the 310-day bar on remarriage, still reads as a rule about a woman whose male spouse has died remarrying a man. The presumption-of-paternity sections, 1536 to 1545, still speak of the man who is or was a spouse. Those provisions were not overlooked. The Act rewrote them and kept the sex-specific rule on purpose: section 14 of the Act replaced Sections 1452 and 1453 together, and nine of the ten sections from 1536 to 1545 were replaced as well, every one except 1540. What the rewrite did was put “the man who is, or was, a spouse” where the Code used to say “husband”, while leaving the rule itself addressed to a woman and a man. The gendering is a legislative choice rather than a drafting oversight, which is why some questions about a same-sex couple and a child born during the marriage do not yet have a clean statutory answer.

The Legislative Journey

This didn’t happen overnight. The House of Representatives voted 400 to 10 to pass the bill on March 27, 2024. The Senate voted 130 to 4 on June 18, 2024. It received Royal assent on August 12, 2024, and appeared in the Royal Gazette on September 24, 2024. That publication was the official trigger for implementation.

The speed was extraordinary for Thai law. Most legal changes take years. This one moved through Parliament in months, signaling strong public and political support. We covered the milestone in detail in our article on same-sex marriage in Thailand.

Rights Same-Sex Couples Now Have in Thailand

Property Rights (Sin Somros and Sin Suan Tua)

Thai law distinguishes two types of property in marriage: communal property (sin somros) and separate property (sin suan tua). This distinction matters for anyone buying property in Thailand as a couple.

Property classification depends on its source and the Civil and Commercial Code, not only the name on a deed. Salary savings acquired during marriage generally form marital property. Property received by inheritance or gift is generally separate, subject to the statutory exceptions; income from separate property is generally marital property. A valid prenuptial agreement also needs to be considered.

Sin suan tua is property owned before the marriage or inherited or gifted during the marriage. This stays separate. Same-sex spouses have the same right to keep sin suan tua separate as opposite-sex spouses.

On divorce, identify each spouse’s separate property, marital property and relevant debts before calculating the division. Section 1533 provides equal division of marital property. Any agreement relied on must be valid and applicable; a prenuptial agreement does not automatically validate every proposed arrangement.

We recommend a prenuptial agreement for any couple (same-sex or opposite-sex) who want to define property division differently. It must be registered at the district office to be valid.

Inheritance and Succession

Thai law gives spouses a statutory share of a deceased spouse’s estate, and a surviving same-sex spouse inherits exactly what any surviving spouse inherits. The size of that share is set by Section 1635, which was not amended because it already spoke of a surviving spouse rather than a husband or a wife. Section 1625 is the neighbouring rule and does a different job: it governs how the couple’s own property is divided between the deceased and the survivor before the estate is distributed at all.

Under Section 1635, the surviving spouse shares as a child where descendants inherit. Each surviving parent also shares as a child under Section 1630. The spouse takes one half where parents inherit without descendants, or where full siblings inherit; two thirds where the qualifying relatives are half siblings, grandparents or uncles and aunts; and the whole estate if no statutory relative qualifies. Establish the family tree before calculating shares. These intestacy rules do not create a compulsory share against a valid will.

Statutory inheritance follows a valid registered marriage and the applicable succession rules. A will helps specify beneficiaries and an estate administrator. Separate the survivor’s own share of marital property from the deceased’s estate before applying the will or intestacy rules.

Adoption

Same-sex married couples can adopt children in Thailand under the same rules as opposite-sex couples. The provisions that actually govern this are Section 1598/25 and Section 1598/26, which require a married person who adopts, or who is adopted, to have their spouse’s consent. Neither section needed amending, because both were already written in terms of a spouse rather than a husband or a wife. Section 1598/17 is sometimes cited for this and does not belong: it governs management of marital property where the court appoints someone other than the spouse as guardian of an incompetent spouse.

The adoption process is the same: apply to the district office or family court, show you can support and care for the child, and demonstrate it’s in the child’s best interest. Both spouses must meet the age requirements under Thai law. Joint adoption is only open to married couples. Under Section 1598/26 of the Civil and Commercial Code a minor cannot be the adopted child of two people at the same time unless the second adopter is the spouse of the first. An unmarried partner cannot become a second legal parent of the same child.

Adoptive children have the same rights to inheritance, legitimacy, and family status as biological children. If you adopt a child and then divorce, both parents retain rights and obligations to the child. Same rules as opposite-sex couples.

Healthcare and Medical Decisions

A spouse has a recognised family relationship, but marriage does not give unlimited authority over the other spouse’s treatment. Section 8 of the National Health Act centres on the patient’s informed decision and provides exceptions for urgent or incapacity situations. Ask the treating hospital which consent and representation documents apply.

Record treatment wishes and emergency contacts in advance. A living will under Section 12 of the National Health Act concerns refusal of specified end-of-life treatment; it is not a general power to make every medical decision for another person. Read the National Health Act.

Spousal Visa and Immigration

Same-sex spouses can now apply for spousal visas (Non-Immigrant O visas) in Thailand on the same basis as opposite-sex spouses. You need a marriage certificate from a Thai district office, proof of the financial requirement, and a letter of consent from your spouse.

The financial requirement is more generous for you than for an opposite-sex couple, and almost nothing written in English says so. The criteria are the table annexed to Immigration Bureau Order 12/2568 of 23 January 2025, and its clause 2.18 draws the two cases differently. For a marriage between a man and a woman, sub-clause (6) puts the test on the alien husband alone. For a marriage between persons of diverse genders, sub-clause (7) says that either spouse, or both of them taken together, must meet it.

So the money does not have to be the foreign spouse’s. It can be the Thai spouse’s, or the two of you combined. The test itself is an average income over the year of not less than 40,000 THB a month, or 400,000 THB on deposit in a Thai commercial bank or a specialised state financial institution held throughout the two months before the application, or income and deposit added together reaching 400,000 THB for one year’s expenses. A couple who would fail on the foreign spouse’s finances alone may well pass on the pair of them, and that route exists only because sub-clause (7) was written for these marriages.

A visa and permission to stay are different documents. A qualifying spouse of a Thai national applies for an extension under the applicable immigration criteria; marriage does not itself grant a one-year stay. Check the current permission-to-stay stamp, eligibility and required evidence before applying.

Before and After the Marriage Equality Act

Right	Before January 23, 2025	After January 23, 2025
Legal Marriage Registration	Not allowed for same-sex couples	Allowed; full marital rights apply
Communal Property (Sin Somros)	No legal recognition	Equal to opposite-sex spouses; 50/50 division on divorce
Inheritance Rights	No statutory share for same-sex partners	Surviving spouse inherits same share as opposite-sex surviving spouse
Adoption	Not available to same-sex couples	Available; same process as opposite-sex couples
Medical Decision-Making	Limited; no automatic spousal authority	Spousal relationship recognised; patient consent, capacity and applicable medical law still govern
Spousal Visa	Not available	Available; Non-Immigrant O visa on spousal basis
Spousal Maintenance	No obligation between same-sex partners	Equal obligation to provide maintenance (Section 1461)
Child Legitimacy	Limited rights for children of same-sex couples	Marriage is gender-neutral, but Sections 1536-1545 retain sex-specific paternity presumptions referring to the male spouse or former spouse. Parentage for a child born to one spouse during a same-sex marriage is not fully resolved by those sections; joint adoption by married spouses is separately available.
Divorce and Asset Division	No legal marriage to dissolve	Same divorce process and asset division as opposite-sex couples
Tax and Succession Planning	No spousal tax deductions or exemptions	Access to spousal succession rights and joint asset planning

Spouse benefits: current entitlement and proposed alignment

Registered spouses of every gender qualify for Social Security survivor benefits on the same legal basis, subject to the conditions for the particular benefit. The Government’s August 2026 guidance covers death assistance, funeral expenses and the old-age lump sum. Keep the marriage certificate and beneficiary designation records current. Read the official Social Security guidance.

A separate Cabinet decision on 18 August 2026 approved in principle draft state-enterprise rules aligning spouse terminology for compensation, medical care and funeral benefits. Cabinet approval alone does not establish commencement. Before making a claim, check the final instrument and the employer’s applicable scheme. Read the Cabinet announcement.

How Foreigners Can Register a Same-Sex Marriage in Thailand

If you’re a foreign national wanting to marry a Thai citizen or another foreigner in Thailand, the process is straightforward but document-heavy. We’ve written a detailed same-sex marriage registration guide as well. Here’s the step-by-step breakdown.

Step 1: Affidavit of Freedom to Marry

You need an affidavit from your home country proving you’re free to marry. That means you’re not already married, not underage, and not barred by law. This is called a Certificate of No Impediment or Freedom to Marry affidavit.

Request this from your embassy or consulate in Thailand. Most embassies issue them on the spot, though some require advance notice. You’ll need your passport, any previous divorce decrees, and sometimes a birth certificate.

Confirm the issuing authority and document language accepted for your nationality with the district office. Complete the required Thai translation and legalisation. An apostille is not a substitute for the current route before the Convention enters into force for Thailand.

Step 2: Translation and Legalization

Foreign documents used for marriage registration normally need a Thai translation and the authentication or legalization steps required for that document and nationality. District-office practice varies, so confirm the required form with the amphur before filing. Translation prices vary by provider.

The authentication route depends on the issuing country and document. Thailand deposited its instrument of accession to the Apostille Convention on 30 June 2026, but the Convention does not enter into force for Thailand until 28 February 2027. Until then, documents for use at a Thai district office generally remain subject to the applicable embassy and Ministry of Foreign Affairs legalization route. Confirm the current procedure with the district office and the Department of Consular Affairs before filing.

This step typically takes 1 to 2 weeks if you apply through your embassy.

Step 3: District Office Registration

Once you have the translated, legalized affidavit (and your Thai partner’s ID and household registration if applicable), go to the district office where you want to marry.

Bring the identity and marital-status documents required for both parties, the translations and legalisations, and two witnesses. The ordinary minimum marriage age is 18, with a court-permission exception; minors also require the applicable consent. Foreign nationality requires a separate capacity and document check. A general health certificate is not on DOPA’s standard marriage-document list.

Once the district office accepts the registration, it issues the Thai marriage registration documents. An English translation is a separate step if you need one for use abroad. Government fees are nominal and local practice can differ.

Required Documents Checklist

• Passport (valid)
• Affidavit of Freedom to Marry from your embassy
• Translation of affidavit to Thai (certified translator)
• Legalisation required for the document and nationality under the current procedure
• Birth certificate (original or certified copy; may be required)
• Any additional document requested for a specific legal condition, confirmed with the registrar
• Marriage registration form (provided by district office)
• Thai spouse’s ID card and household registration (if marrying Thai citizen)
• Two witnesses, with the identity documents accepted by the registrar

Arrange an appointment after the registrar confirms the document set. Embassy appointments, legalisation and verification of foreign documents affect the total timetable; registration speed should not be promised before those steps are complete.

Prenuptial Agreements for Same-Sex Couples

A prenuptial agreement is optional but smart. It lets you and your spouse specify how property will be divided if you divorce, protect assets from before the marriage, or establish different rules than Thai law provides.

Under Section 1465 and Section 1466 of the Civil and Commercial Code, both same-sex and opposite-sex couples can agree in writing to divide property differently than the 50/50 sin somros default. Section 1466 sets the form, and it allows two routes: the terms go into the Marriage Register itself at the moment the marriage is registered, or the agreement is written, signed by both spouses and by at least two witnesses, annexed, and noted in the Register as annexed. Miss both routes and the agreement is void, not merely unenforceable. Section 1463 is a different provision and is sometimes cited here by mistake: it deals with guardianship where a court adjudges a spouse incompetent.

A prenuptial agreement is especially valuable if one spouse is significantly wealthier, if one has children from a previous relationship, if both own property before marrying, or if you’re concerned about creditor claims.

We draft prenuptial agreements for 8,900 THB. We review your assets, discuss your concerns, and draft language that protects both of you fairly. The agreement is then registered at the district office.

Same-Sex Divorce in Thailand

Same-sex divorce follows the exact same legal process as opposite-sex divorce. We cover the full process in our divorce in Thailand guide. There are two routes: mutual agreement divorce and contested divorce.

Divorce by mutual consent requires a written agreement signed by both spouses and at least two witnesses, followed by registration where required. Resolve property, debts and arrangements for children in the agreement. Do not assume the registrar settles a disputed claim or that every case will finish in a fixed number of minutes.

Contested divorce requires family court involvement if spouses disagree over property division, custody, or other terms. A judge will decide based on Thai family law. This takes months and costs more in legal fees, but you’re protected by court order.

Property division rules are identical for same-sex and opposite-sex couples. Sin somros is divided 50/50 unless you had a prenuptial agreement. Sin suan tua goes to whoever owns it. Child custody follows the child’s best interest, regardless of sexual orientation.

For disputed property or child arrangements, obtain a written scope of work and fee quote before instructing a lawyer. Document preparation, negotiation and court representation are different services.

Broader LGBTQ+ Rights in Thailand

Gender Equality Act B.E. 2558 (2015)

Thailand passed an anti-discrimination law, the Gender Equality Act, in 2015. It prohibits discrimination based on gender, sexual orientation, and gender identity in employment, education, housing, and public services.

This means employers cannot fire you for being gay, schools cannot deny enrollment, landlords cannot refuse to rent, and businesses cannot refuse service. At least in theory. Enforcement is uneven, but the law exists and gives LGBTQ+ people a legal basis to challenge discrimination.

If you face discrimination, you can file a complaint with the Ministry of Social Development and Human Security or take civil action. Our family law guide for expats covers related protections.

Gender Recognition Bill (Pending)

Thailand has several gender recognition bills pending in Parliament since 2016. These would allow transgender and non-binary individuals to update their legal gender on official documents (ID card, passport, etc.) without medical procedures.

The bills have stalled due to disagreements over details (e.g., age requirements, parental consent, medical assessments). As of April 2026, no bill has passed. We’ll update this guide if that changes.

Workplace Protections

Under the Labor Protection Act and the Gender Equality Act, employers cannot discriminate based on sexual orientation or gender identity. You cannot be fired, demoted, or harassed because you’re gay or transgender.

If you experience workplace discrimination, file a complaint with the Department of Labor or consult an employment lawyer.

Will Your Same-Sex Marriage Be Recognized Back Home?

This is critical to understand before marrying in Thailand. Thai law recognizes your marriage, but your home country might not.

Countries that typically recognize Thai same-sex marriages: Canada, Australia, New Zealand, most of Western Europe (UK, France, Germany, Netherlands, Scandinavia), and many others. If you’re from one of these countries, your Thai same-sex marriage should be recognized. We still recommend checking with your embassy to be sure.

Countries with limited or no recognition: Some countries don’t recognize same-sex marriage at all (parts of Asia, Africa, Middle East). Some recognize it conditionally. Some recognize it for immigration purposes but not tax/inheritance purposes.

What you should do: Before marrying in Thailand, check with your home country’s embassy in Bangkok. Ask explicitly whether a Thai same-sex marriage will be recognized. Some countries recognize it automatically; others require registration or a court order. Get it in writing.

If your marriage won’t be recognized back home, consider what that means for inheritance, taxes, immigration, and property ownership in your home country. You might need separate legal documents (power of attorney, will, healthcare directive) in your home country to protect your spouse.

Do You Still Need a Will?

Yes. Marriage equality does not make a will optional. In fact, a will becomes more important.

Thai inheritance law gives a surviving spouse a statutory share, but that share might not be what you want. If you have children from a previous relationship, if you own separate property you want to go to specific people, or if you want to ensure your spouse gets the most, a will is essential.

A will lets you override the statutory shares, name your spouse as executor, specify funeral wishes, and distribute specific items. Without a will, your estate goes through intestacy succession under Thai family law, which can take months and create family disputes.

We draft last wills for 3,900 THB. A standard private will is signed with the formalities required by Thai law and kept safely by the testator or another trusted person; district-office registration is not required for an ordinary private will. After death, the executor normally presents the will in the probate process.

Costs and Fees

DOPA states that marriage and divorce registration at a registry office carry no registration fee. Marriage registration outside the office has a 200-baht fee plus applicable travel costs; certified copies have separate charges. Embassy, translation, legalisation and legal-service charges are separate. Obtain a written quote identifying the service and whether representation is included. Read the official registration guide.

Frequently Asked Questions Is Gay Marriage Legal in Thailand

How ThaiLawOnline Can Help

We assist couples with marriage-registration documents, prenuptial agreements, wills, divorce and related immigration questions. The required work depends on nationality, documents, property and family circumstances. Agree the scope and fees before instructing us.

Here’s what we offer:

• Marriage Registration Assistance: We prepare your documents, translate and legalize them, and accompany you to the district office.
• Prenuptial Agreement Drafting: 8,900 THB. We draft a tailored agreement, register it, and explain your options.
• Last Will and Testament: 3,900 THB. We draft a will ensuring your spouse is protected and your wishes are clear.
• Divorce Support: Fees quoted for the agreed scope. We draft the divorce agreement or represent you in court if contested.
• Spousal Visa Assistance: We guide you through the Non-Immigrant O visa process.

All of our work is reviewed by Thai-qualified lawyers. We handle marriage equality cases confidently and professionally. Contact us at info@thailawonline.com or call +66 8 7225 1340.