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🇲🇽 Thai Law vs Mexican Law: Key Differences
Comparing Thai and Mexican legal systems — relevant for Mexican nationals visiting, studying, or doing business in Thailand.
Mexico uses a civil law system based on the Código Civil Federal (1928 federal, with state codes for each of the 32 federal entities) and a federal constitutional framework under the 1917 Constitution. Thailand uses a unitary civil law system. Both are codified jurisdictions but Mexico has substantial state-level variation.
Comparison Table
| Area | 🇹🇭 Thai Law | 🇲🇽 Mexico | Key Difference |
|---|---|---|---|
| Legal System | Civil law (codified). Unitary system. | Civil law (Código Civil Federal + 32 state codes). Federal system. Constitution 1917. | Mexico has federalism and state-level civil/criminal codes; Thailand applies law uniformly. |
| Marriage / Same-Sex Rights | Marriage Equality Act B.E. 2567 (2024) effective 22 January 2025 — full marriage equality. | Full marriage equality nationwide since 2022 (Supreme Court rulings + state legislation). | Both Mexico and Thailand have full marriage equality; Mexican-Thai same-sex marriages are recognised in both jurisdictions. |
| Visa Status with Thailand | Mexico is on the 93-country visa-exempt list — 60 days visa-free entry from 15 July 2024. | Thai nationals require a visa for Mexico (electronic authorisation available). | Mexican nationals enjoy generous Thai visa-free entry; Thai nationals face Mexican visa requirements. |
| Drug Laws | Cannabis decriminalised 2022 but recreational use restricted since 2024. Death penalty possible for trafficking. | Cannabis: Supreme Court (SCJN) declared prohibition unconstitutional 2021 but legislation pending. Personal possession of small quantities decriminalised under federal law. Trafficking severe. | Mexican leniency on personal use does NOT extend to Thailand — Thai trafficking penalties are dramatically harsher. |
| Defamation Law | Criminal offence under Criminal Code Sections 326-333. Truth not always a defence. Imprisonment up to 2 years. | Criminal defamation abolished at federal level (2007) and in most states. Civil remedies under daño moral. | Mexico has largely decriminalised defamation; Thailand criminalises it. A negative review legal in Mexico can lead to arrest in Thailand. |
| Property / Land Ownership | Foreigners cannot own land. Condos limited to 49% foreign quota. | Foreigners cannot directly own property within 50km of coast or 100km of border (restricted zone) — must use fideicomiso (bank trust). Free outside restricted zone. | Both restrict foreign land ownership in sensitive areas; Mexico uses bank trust (fideicomiso) — Thailand uses leasehold/condominium quota. |
| Tax | Worldwide remittance basis from 2024. Tax resident at 180+ days. Top rate 35%. | Worldwide taxation for residents (centro de intereses vitales test). Top rate 35%. DTA with Thailand in force. | Mexico-Thailand DTA prevents double taxation; Mexican tax residency is determined by centro de intereses vitales rather than just days. |
| Family Law | Community property default. Civil marriage at Amphur (อำเภอ). Prenups must be registered with marriage. | Civil marriage at Registro Civil. Property regime chosen at marriage: sociedad conyugal (community) or separación de bienes. Prenups via capitulaciones matrimoniales. | Both systems require choice of property regime at marriage; Mexican capitulaciones must be executed before a notary. |
Important Notes
Mexican nationals enjoy 60-day visa-free entry from 15 July 2024
Mexico-Thailand DTA prevents double taxation on most income types
Mexican Embassy in Bangkok provides consular and notarial services
Mexican nationals losing tax residency should file with SAT (Servicio de Administración Tributaria)
Professional Legal Assistance
When a matter involves investigation, arrest, detention, litigation, or regulatory action, professional legal representation becomes essential.
Anglo Siam Legal provides experienced legal services across Thailand for both Thai nationals and foreigners.
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