Thailand

Illegal drugs carry severe penalties in Thailand — possession, use, or trafficking can mean long prison terms, heavy fines, or even execution, and some U.S. prescription medications are also illegal here.

Long jail terms up to the death penalty

Verified Jul 3, 2026

Do not bring cannabis into Thailand, whatever the law says where you bought it. Thailand's Food and Drug Administration states plainly that cannabis-based or hemp-based foods may not be imported, that cosmetics containing cannabis extract or hemp may not be imported, and that herbal products containing cannabis or hemp must not be brought in. Cannabis flower is a controlled herb: the Thai government tells visitors they are strictly prohibited from carrying or transporting it unless they hold a prescription issued in Thailand by a licensed practitioner, capped at a 30-day supply. Prohibited goods carry customs penalties, and the Thai government warns that in some cases even transiting through Thailand with them is an offence. Enforcement has hardened: the U.S. Embassy in Bangkok reports that since 17 June 2026 Thai customs formally treats cannabis buds as a fineable customs offence instead of simply confiscating them without charge.

Section 244 of the Customs Act B.E. 2560 (2017) has now been read in the Thai original in the Royal Gazette. A person who brings goods through a customs formality into or out of Thailand, or brings them in for transit or transshipment, while evading the restrictions or prohibitions on those goods, faces imprisonment of up to ten years, a fine of up to 500,000 baht, or both, and the court may order the goods forfeited whether or not anyone is convicted. An attempt carries the same penalty. Section 252 makes this a strict-liability offence: the offender is liable even where there was no intent, so not knowing cannabis was in your bag is not a defence. Section 244 belongs to the 2017 Act, so it is not a new penalty; what changed on 17 June 2026 is enforcement policy, with the U.S. Embassy in Bangkok reporting that Thai customs began formally charging cannabis buds as a fineable offence under section 244 instead of confiscating them without charge. Goods that bypass customs altogether fall under section 242 instead, where the fine is four times the value of the goods including duty and forfeiture is mandatory. Separately, cannabis flower may only be dispensed on a prescription issued in Thailand and only up to a 30-day supply, so a visitor without one has no lawful way to hold it.

Verified Aug 29, 2026

Since 26 June 2025 cannabis in Thailand is lawful only as a medicine: it takes a prescription from a licensed Thai medical professional, capped at a 30-day supply, and only doctors and licensed practitioners may dispense it. Shop, vending-machine and online sales are banned, so a visitor without a Thai prescription has no lawful way to buy cannabis here.

Buying, selling or holding cannabis outside the medical-prescription route is an offence. A specific penalty figure for personal possession could not be confirmed from a Thai government source on this check, so none is published here.

Verified Aug 20, 2026

Carry prescription medicine in its original packaging with your doctor's prescription (about a 30-day personal supply), and check with the Thai FDA and Customs first because some U.S. medications are illegal in Thailand.

Some U.S. meds are banned and can be seized

Verified Jul 3, 2026

Guns, bullets, explosives and anything equivalent to a gun are restricted goods in Thailand: bringing them in or out is allowed only with a permit from the Department of Provincial Administration, Ministry of Interior, presented during customs formalities. Thai Customs lists no exception for a traveller carrying a firearm for sport or self-defence, so arrive with the permit already issued or leave the item at home.

Verified Sep 27, 2026

Foreign currency (notes and coins) exceeding USD 20,000 or its equivalent must be declared to Customs when entering or leaving Thailand.

Undeclared currency over the limit may be subject to enforcement action.

Verified Jul 6, 2026

Some things are illegal to bring into or take out of Thailand at all, not merely taxed. Thai Customs names as prohibited goods: narcotics, pornographic materials, counterfeit trademark goods and goods infringing intellectual property rights, fake notes or coins, and reserved animals or CITES-listed wildlife. A separate restricted list (guns, Buddha images and antiques, plants, live animals and carcasses, food, medicine, cosmetics and supplements, vehicle parts, cigarettes, tobacco and alcohol, radio and telecom equipment) may be brought in only with a permit from the responsible Thai agency, shown at customs.

Verified Sep 27, 2026

Alcohol is sold only 11:00-24:00 in Thailand, and sales stop nationwide on five Buddhist holy days. Airport terminals, hotels and licensed venues are exempt - and the old 2pm-5pm afternoon ban was scrapped in May 2026.

Selling outside permitted hours or on a prohibited day breaches s.28 of the Alcoholic Beverage Control Act B.E. 2551; s.39 sets imprisonment of up to 6 months, a fine of up to 10,000 baht, or both. The offence falls on the seller, not the buyer. Selling to anyone under 20 breaches s.29 and is punishable under s.40 by up to 1 year's imprisonment or a fine of up to 20,000 baht.

Verified Sep 8, 2026

E-cigarettes and all vaping devices, e-liquids and accessories are illegal in Thailand and must not be brought in or used, by foreigners or Thais.

Arrest, jail time, or a fine several times the value of the items; on-the-spot fines reported.

Verified Jul 6, 2026

Thai Customs treats cigarettes, tobacco and alcoholic beverages as restricted goods: importing or exporting them requires a permit from the Excise Department, and the permit must be presented during customs formalities. Thai Customs publishes no personal traveller quantity on this page, so treat any tobacco you carry beyond obvious personal use as declarable and ask at the red channel rather than walking through green.

Verified Sep 27, 2026

Traffic moves on the left in Thailand, and driving under the influence is punishable by law.

If found intoxicated you could be jailed for a minimum of two years and fined.

Verified Jul 6, 2026

You must register your drone with Thailand's National Broadcasting and Telecommunications Commission (NBTC) within 30 days of bringing it into Thailand or buying one there - even if you never intend to fly it. Flying an unregistered drone is illegal, and the registration duty is triggered by possession, not by flying.

An unregistered drone carries a fine of 100,000 baht, five years' imprisonment, or both.

Verified Sep 28, 2026

Do not assume a walkie-talkie, ham radio or signal booster can just come into Thailand in your bag. Thai Customs lists communication radio devices and telecommunications equipment as restricted goods: importing or exporting them is allowed only with a permit from the Office of the National Broadcasting and Telecommunications Commission (NBTC), and that permit must be presented during customs formalities. Ordinary phones and laptops are not named on the restricted list.

Verified Sep 27, 2026

There are no known legal restrictions on same-sex sexual relations or LGB events in Thailand.

Verified Jul 6, 2026

Making a critical or defamatory comment about the Thai royal family is a serious crime — even defacing bank notes, which carry the King's image, can qualify as lèse-majesté.

Up to 15 years in prison per offense

Verified Jul 6, 2026