Thailand is a welcoming, relatively safe country for expats — but it has laws that are radically different from what most Westerners are used to, and some carry consequences that are genuinely severe. After six years in Phuket, I've seen smart, reasonable people get into serious trouble simply because they didn't know the rules. This guide covers the areas that matter most.
The Legal Landscape at a Glance
These are the eight legal areas every Phuket expat needs to understand — in rough order of severity of consequences for getting it wrong.
Lèse-majesté
Up to 15 years per count. Applies to the monarchy in all forms — online, in conversation, in jokes.
Drug Laws
Cannabis re-criminalised 2024. Class 1 drugs (heroin, meth) carry the death penalty for trafficking.
Work Permits
Working without a permit = ฿100,000 fine + deportation + re-entry ban. Enforcement is increasing.
Visa Overstay
฿500/day, capped at ฿20,000. Over 90 days = deportation + 1–10 year re-entry ban.
Property Ownership
Foreigners cannot own land. Condos yes. Leasehold up to 30 years. Many workarounds carry risk.
Traffic Laws
Riding without a licence = fine. No helmet = fine. Drink-driving: ฿50,000–200,000 + imprisonment.
Computer Crimes Act
Online content deemed false, disturbing, or defamatory can result in prosecution and imprisonment.
90-Day Reporting
Long-stay visa holders must report their address to immigration every 90 days. Fine: ฿5,000 if missed.
Lèse-majesté: The Law You Cannot Ignore
Thailand's lèse-majesté law (Section 112 of the Criminal Code) criminalises any defamatory, insulting, or threatening statement about the King, Queen, Heir-apparent, or Regent. It is among the strictest such laws in the world.
Each separate incident can constitute a separate count. Cases have resulted in sentences of 30–50 years before royal pardon. Foreigners are not exempt — several Western nationals have been prosecuted and deported or imprisoned.
What this means in practice for Phuket expats:
- Do not comment critically on the monarchy — in person, online, in WhatsApp groups, or on social media
- Do not share, like, or repost content that could be interpreted as critical of the monarchy
- If someone makes such comments near you, do not engage or laugh along — anyone can file a complaint
- Any Thai national can file a lèse-majesté complaint — it is not just police-initiated
- Criticising the law itself can also be charged under it
The Computer Crime Act 2007 (amended 2017) means that online posts, comments, memes, or shares are all prosecutable under lèse-majesté. Thai police actively monitor social media. VPNs do not provide legal protection — they may reduce detection risk but if identified, you will be charged.
Drug Laws in Phuket: 2024 Re-criminalisation
After Thailand's brief decriminalisation of cannabis (June 2022), the government reversed course. Cannabis was reclassified as a Category 5 narcotic in late 2024. Here is where things stand.
| Substance | Category | Possession Penalty | Trafficking Penalty | Status 2026 |
|---|---|---|---|---|
| Heroin, fentanyl | Category 1 | Life imprisonment | Death penalty | Strictly illegal |
| Methamphetamine (ya ba, ya ice) | Category 1 | 1–15 years + fine | Death penalty | Strictly illegal |
| MDMA, ecstasy | Category 1 | 1–10 years | Death/life imprisonment | Strictly illegal |
| Cocaine | Category 2 | 1–10 years | 3–15 years | Strictly illegal |
| Cannabis (recreational) | Category 5 | Up to 1 year / ฿20,000 fine | Up to 2–15 years | Re-criminalised 2024 |
| Cannabis (medical, prescribed) | Exempt | N/A | N/A | Legal with prescription |
Despite re-criminalisation, many cannabis dispensaries remain open in tourist areas like Patong, Kata, and Karon operating under medical prescription frameworks. As a foreigner, buying or using cannabis without a Thai doctor's prescription puts you at legal risk. Phuket police have conducted targeted operations at foreigner-frequented dispensaries since mid-2024. The risk of a ฿20,000 fine and deportation is real — not theoretical.
Work Permit Rules: What Counts as "Work"
The Foreign Business Act defines "work" very broadly — any activity that generates income in Thailand, or that a Thai national could do instead. This is much wider than most expats realise.
| Activity | Work Permit Required? | Penalty if Caught |
|---|---|---|
| Employed at a Thai company | Yes — mandatory | ฿100,000 fine + deportation |
| Teaching English at a school | Yes — Non-B + WP | ฿100,000 fine + deportation |
| Freelancing for overseas clients from Thailand | Technically yes; DTV may cover | Enforcement variable |
| Running a business registered in Thailand | Yes — WP required | ฿100,000 fine + criminal charges |
| Investing passively (property, stocks) | No | N/A |
| Social media monetisation (YouTube, Instagram) | Grey area — increasingly scrutinised | Enforcement growing |
| DTV (Digital Nomad Visa) remote work | DTV covers remote work for overseas employers | Cannot work for Thai companies |
Visa Overstay: The Fines and the Bans
Phuket Immigration (located in Chalong, near the post office on Chao Fa West Road) enforces overstay rules actively. The fines are modest but the re-entry ban is life-altering for anyone who plans to live here long-term.
If you're on a long-stay visa (Non-OA, Non-B, LTRV, etc.), you must report your address to Phuket Immigration every 90 days — even if your visa and permission to stay are current. Failure is a ฿5,000 fine. You can do this online at imm.immigration.go.th or in person at Chalong. Most visa agents offer 90-day reporting as an add-on service for ฿1,500–฿2,500.
Property Ownership: What Foreigners Can and Cannot Do
Phuket's property market is popular with expats, but the legal structure is widely misunderstood. Here is the plain-language summary.
| Property Type | Foreigners Can Own? | Legal Structure | Risk Level |
|---|---|---|---|
| Condominium (foreign quota) | Yes — freehold | Up to 49% of building's floor area may be foreign-owned | Low |
| Land (Chanote title) | No | Cannot be in foreign name | N/A — illegal |
| Leasehold (30 years) | Yes — legally sound | Registered at Land Office; renewable (30+30+30 in practice) | Medium — renewals not guaranteed |
| Via Thai company structure | Technically possible | Thai Ltd company (min 51% Thai-owned) holds land | High — scrutinised by authorities |
| Via Thai spouse | Spouse can own land | Land is spouse's property — you waive rights | High — contested in divorce |
| BOI / LTR Visa holder (land lease) | Up to 1 rai (1,600 m²) for residential use | Special scheme for BOI-promoted or LTR visa holders | Low — government-approved |
The vast majority of expat property transactions in Phuket involve either condominium freehold ownership or 30-year leasehold arrangements. Thai company structures have been legal in theory but the Department of Special Investigation (DSI) has actively prosecuted cases of "nominee shareholding" — where Thai shareholders hold shares on behalf of foreigners. Get proper legal advice before using any company structure to hold land.
Traffic Laws: Phuket's Enforcement Reality
Phuket has checkpoints year-round — particularly on the road into Patong (Patong Hill), on the Chalong Roundabout approach, and near Kata/Karon. Enforcement of foreigner traffic violations has been consistent since 2019.
- Helmet law: Mandatory for motorbike riders and passengers. Fine: ฿500–฿1,000. No-helmet tourists are prime checkpoint targets in Patong and Kata.
- International/Thai driving licence: Riding or driving without a valid licence that covers the vehicle class: fine of ฿1,000–฿2,000 for the first offence. Your travel or health insurance may also be voided in an accident.
- Drink-driving: Blood alcohol limit is 50mg/100ml (lower than UK/US). Fine: ฿50,000–฿200,000 plus imprisonment up to 1 year for first offence. This is seriously enforced in Phuket.
- Mobile phone use while driving: Fine of ฿500–฿2,000.
- Motorbike licence specifics: An international driving permit (IDP) works for a tourist visit. For long-term residents, a Thai licence is required. Phuket Land Transport Office on Thepkasattri Road handles conversions.
Computer Crimes Act: Social Media and Online Activity
Thailand's Computer Crime Act (2007, amended 2017) is broad and actively enforced. It covers more than just hacking — it reaches any online content deemed false, distorted, or damaging to security or public order.
- Sharing "false information" online that could damage national security: up to 5 years imprisonment + fine
- Defaming an individual online (including Thai nationals): prosecution under both the Computer Crime Act and criminal defamation law
- Sharing lèse-majesté content online: prosecutable under both Section 112 and the Computer Crime Act — double jeopardy
- Negative reviews of businesses: several foreigners have faced lawsuits after negative TripAdvisor or Google reviews — civil and criminal proceedings are possible under defamation law
Several expats and tourists in Phuket have received threats of legal action after posting negative reviews of restaurants, tour operators, or accommodation. Thai defamation law has no truth defence (unlike UK/US law) — proving the review was accurate is not a complete defence. Write factual, measured reviews and avoid language that could be construed as damaging to reputation rather than informative.
Dealing with Thai Police: A Practical Guide
Phuket's tourist police (the ones in distinctive blue-and-yellow uniforms at the Tourist Police booth on Thalang Road in Phuket Town, and in Patong on the beachfront) are specifically there to help foreigners. Regular Thai police can also be encountered at checkpoints or incident scenes.
- Always carry your passport or a certified copy. Thai law requires foreigners to have ID on them at all times. In practice, police accept a copy, but originals are best at checkpoints.
- Stay calm and respectful. Confrontation escalates situations. The concept of "face" (kreng jai) is central to Thai culture — never shout at or publicly embarrass an officer.
- Request a translator if you don't speak Thai. Tourist Police (1155) can provide assistance and translation in many situations.
- Do not try to bribe a police officer unless explicitly and indirectly suggested. Offering a bribe can worsen your situation significantly and is illegal.
- Contact your embassy if you are detained. UK: Bangkok Embassy (02-305-8333). US: Bangkok Embassy (02-205-4000). Australian: 02-344-6300.
- Use Tourist Police (1155) for any incident involving theft, scams, or disputes with locals — they are specifically trained for these situations and often more helpful than regular police for foreigner-involved incidents.
Quick Reference: Fines & Penalties
| Violation | Fine / Penalty | Additional Consequences |
|---|---|---|
| Lèse-majesté | 3–15 years per count | Deportation, travel ban |
| Drug possession (Class 1) | 1 year – life imprisonment | Deportation, permanent ban possible |
| Cannabis possession (no prescription) | Up to ฿20,000 + up to 1 year | Deportation |
| Working without a permit | Up to ฿100,000 | Deportation + re-entry ban |
| Visa overstay (1–90 days) | ฿500/day, max ฿20,000 | None for first time under 90 days |
| Visa overstay (90+ days) | ฿20,000 | 1–10 year re-entry ban |
| Missed 90-day report | ฿5,000 | None typically |
| No motorbike helmet | ฿500–฿1,000 | Insurance may be void if in accident |
| Drink driving (first offence) | ฿50,000–฿200,000 | Up to 1 year imprisonment |
| Online defamation | Up to ฿200,000 fine | Up to 5 years imprisonment |