Thailand: Islamic family law in the four southern provinces and cross-border marriage

1Two legal regimes

Thailand has no nationwide Islamic family code. The general family law is Book V of the Civil and Commercial Code (CCC), which is monogamous. Exceptions exist only in the four southern provinces whose populations are majority Malay Muslim.

2The Act on the Application of Islamic Law B.E. 2489 (1946)

Its official name is the Phra Ratchabanyat wa duai kan chai kotmai Islam nai khet changwat Pattani, Narathiwat, Yala lae Satun B.E. 2489, passed on 19 November 1946 and gazetted in the Royal Gazette on 3 December 1946. The Act is short — only seven sections:

• s.3 — Scope. In civil cases on family and inheritance in the courts of first instance in the four provinces, where both plaintiff and defendant are Muslim (or the applicant in an uncontested case), Islamic law on family and inheritance applies in place of the CCC — except for the provisions on time limits for inheritance claims.
• s.4 — The Dato' Yutitham. A Dato' Yutitham sits with the judge. He decides questions of Islamic law and signs the judgment; his decision on Islamic law is final in that case.
• s.5 — Objection and substitution. The Dato' Yutitham may be objected to in the same way as a judge. If he is unable to sit, the parties choose another Muslim as a substitute; if they cannot agree, the Chief Justice chooses from a list of proposed names.

The Dato' Yutitham is now a judicial officer of the Courts of Justice of Thailand. The Act does not create a separate Shariah court; it only changes the law applied in the ordinary civil courts.

3The Administration of Islamic Organisations Act B.E. 2540 (1997)

This Act organises Islamic religious institutions throughout Thailand at three levels:

4The Civil and Commercial Code: monogamy and registration

• s.1452 — monogamy. Since the 2024 amendment: "A person may not marry while still having a spouse." The old text said "a man or a woman".
• s.1457 — registration. A marriage under the CCC exists only when registered at the district office (amphoe/khet). A religious contract alone does not make it a civil marriage.
• s.1495 — void. A marriage that breaches s.1452 is void. A spouse who married in good faith does not lose rights already acquired, but does not become a statutory heir (s.1499 as amended).
• s.1448 — age. The CCC Amendment (No. 24) B.E. 2567 raised the minimum marriage age from 17 to 18 years. The court may permit an earlier marriage for a reasonable cause. The amendment was gazetted on 24 September 2024 and came into force 120 days later (January 2025).
• Special-law exception. s.66 of Amendment Act No. 24 states that the amended CCC does not apply to matters governed by specific laws on family or inheritance. So the 1946 Act remains in force in the four provinces.

Thailand does not make bigamy a general criminal offence as Malaysia or the Philippines do. The consequences are civil: the second marriage is void (to be verified whether there is an offence relating to false declarations to the registrar).

5Registration of Islamic marriages in practice

1. The nikah at a mosque or at the Provincial Islamic Committee office. The contract is made before an imam or an authorised marriage officiant, with a wali and two witnesses. The Committee issues a religious marriage certificate.
2. Civil registration at the district office is a separate step under the CCC and the Family Registration Act B.E. 2478 (1935). The district office will not register a second marriage for a man who is already registered as married.
3. As a result, most polygynous marriages in Thailand have only a religious certificate. In the four provinces, the courts may recognise them in family disputes between Muslims (Act 1946 s.3). For other civil matters, such as status in the household register and government benefits, a wife without civil registration is in a weak position (current practice to be verified).
4. Foreign nationals, including Malaysians, usually receive only a certificate from the Provincial Islamic Committee. They do not register at a Thai district office.

6Divorce

• In the four provinces: talaq, khulʿ and fasakh under Islamic law (the Shafi'i school is usually applied). Disputed cases such as maintenance, custody and property are decided by the court together with the Dato' Yutitham. An undisputed talaq is usually recorded by the imam or the Provincial Islamic Committee (to be verified).
• A marriage that is also registered civilly must be dissolved civilly, either by registering a divorce by consent at the district office or by a court order. Otherwise the civil record still shows the couple as married.
• Statistics: Thailand registered 147,340 divorces in 2023 (Statista, Department of Provincial Administration data). No breakdown for Muslims is published.
• Malaysians: a talaq pronounced in Thailand for a marriage registered in Malaysia must be confirmed and registered at the state Syariah Court. See talaq.

7Cross-border marriages of Malaysians: the figures

Southern Thailand has long been a place where Malaysian couples marry. Among them are men who wish to practise polygyny without the Syariah Court's permission, and couples who lack the wali's blessing. The available figures come from Thai religious authorities and the Malaysian Consulate, not from official Thai government statistics.

8Current issues

• Border restrictions (Dec 2024). Tighter control of illegal crossings on the Kelantan–Narathiwat border from 1 December 2024 reduced marriages of Malaysians in Narathiwat by about 40% (FMT, 15 Jan 2025). Couples must now pass through official border checkpoints with passports.
• Child marriage. In June 2018, a 41-year-old Malaysian man from Gua Musang, who already had two wives, married an 11-year-old girl in Golok, Narathiwat (The Star, 30 June 2018). The case prompted calls in both countries to set a minimum age. The Islamic Committees in the southern provinces are reported to have tightened their age requirements afterwards (details of the rules to be verified).
• The 2024 CCC amendment. The civil minimum age is now 18. The amendment does not affect the 1946 Act (s.66).
• Codification. The Islamic family law applied by the Dato' Yutitham has still not been codified as an Act of Parliament. Proposals to establish Shariah courts or a written Islamic family law have been discussed repeatedly (current status to be verified).

9Re-registering in Malaysia

1. Polygyny permission is needed first. A Malaysian man who wishes to practise polygyny must obtain the permission of the state Syariah Court (Act 303 s.23 for the Federal Territories; state enactments). Contracting the marriage in Thailand does not remove this requirement.
2. Legalising the certificate. A marriage certificate from the Provincial Islamic Committee is usually legalised at the Consulate General of Malaysia in Songkhla (or the Embassy in Bangkok) before being brought home (current requirements to be verified with the consulate).
3. Register within six months at the Islamic religious office of the state of residence (Act 303 s.31; equivalent provisions in the state enactments).
4. Prosecution. Polygyny without permission is an offence (Act 303 s.123). Usually the husband is charged and fined first, then the marriage is registered if the contract is valid.
5. Checking the validity of the contract. The religious affairs office or the Syariah Court checks the wali, the witnesses and status. A Thai judge acting as wali (wali hakim) is valid only if the wali by lineage is absent, refuses without a Shariah reason, or is more than two marhalah away. "The ruler is the wali of one who has no wali" (narrated by at-Tirmidhi 1102; hasan). If the wali is in doubt, the Court may refuse to confirm the contract, and the couple may need to marry again.
6. Rights of wife and children. Until the marriage is registered, the wife finds it hard to claim maintenance, and registering the child's birth in the father's name may be delayed.

Sources & references