Vietnam is a straightforward country to visit lawfully. Most travelers spend two or three weeks here, break nothing, notice nothing, and fly home with a camera roll and a coffee habit. But the laws in Vietnam for tourists are not always the ones you would guess, and several changed recently enough that guides written eighteen months ago now give advice that can get a reader fined. What follows is a plain account of the rules most likely to affect a visitor, the published penalty where there is one, and the instrument it comes from. It is orientation, not legal advice.
Visas and Immigration: The Rules That Catch the Most Visitors
Almost every legal problem a tourist has in Vietnam is an immigration problem, and almost all of those are avoidable before departure. The eVisa is open to citizens of every country and territory, runs up to 90 days, and comes in single or multiple entry. What matters legally is where you use it. Entry has to be through one of the 83 designated international checkpoints, 17 airports, 27 land border gates and 39 seaports, a list expanded from 42 by Resolution 389/NQ-CP of 2 December 2025. Land crossings from Laos and Cambodia are where this bites, because plenty of small border posts were never designated. Our guide to Vietnam's visa policy and rule changes tracks the list as it moves.
The second rule is the one that costs money. Overstaying is an administrative offense, and the penalties rose sharply at the end of 2025. Decree 282/2025 took effect on 15 December 2025, replacing Decree 144/2021, and doubled the maximum fine from VND 20 million to VND 40 million, roughly USD 1,520 (Viet Nam News). The band for overstays under 16 days was left where it was.
| Length of Overstay | Fine (VND) | Approximate USD |
|---|---|---|
| Under 16 days | 500,000 to 2,000,000 | 19 to 76 |
| 16 to under 30 days | 5,000,000 to 10,000,000 | 190 to 380 |
| 30 to under 60 days | up to 15,000,000 | up to 570 |
| 60 to under 90 days | up to 20,000,000 | up to 760 |
| 90 days to 6 months | up to 25,000,000 | up to 950 |
| 6 months to under 1 year | up to 30,000,000 | up to 1,140 |
| 1 year or longer | up to 40,000,000 | up to 1,520 |
The fine is not the whole of it. An overstay is also grounds for deportation and a future entry ban, and British government advice notes that overstayers can be prevented from leaving until the fine is paid, which is what turns a missed flight into a missed week. Know your exit date rather than your entry date: an eVisa carries fixed validity dates and arriving late does not push the end date back.
Passports and Registration: Why the Hotel Takes Your Passport
You are expected to be able to prove who you are. British government advice puts it plainly: carry photographic identification at all times, and the authorities will accept a printed copy of your passport photograph page along with your visa (UK Foreign, Commonwealth and Development Office). That is the sensible compromise for a beach day or a motorbike ride. The passport itself needs six months of validity beyond arrival and at least two blank pages.
The part that unsettles first-time visitors is check-in. Vietnamese law requires accommodation to declare foreign guests to the local police shortly after they arrive, which is why reception asks for your passport and sometimes keeps it for an hour. It is a registration duty under the Law on Entry, Exit, Transit and Residence of Foreigners, not a deposit, and hotels file it electronically with the immigration authority. Canadian government advice adds that the obligation is yours as well as the hotel's: if you are staying somewhere non-commercial, a friend's apartment or a homestay that does not file, you report to the nearest police station yourself (Government of Canada).
None of this is sinister, and it is the same paperwork most of Southeast Asia runs. Ask for the passport back once the copy is taken, and keep a photograph of the bio page on your phone.
Driving in Vietnam: The Permit Problem Nobody Warns You About
This is the most consequential rule on the page, because a very large number of visitors break it without realizing, and they break it on a motorbike. Vietnam acceded to the 1968 Vienna Convention on Road Traffic and recognizes international driving permits issued under it. British advice is explicit: you need to carry both the 1968 version of the permit and your home license while driving a car or motorbike in Vietnam. Canadian advice goes further, telling its citizens they must hold a valid Vietnamese license for anything with an engine of 50cc or more.
The trap is that the two permits look almost identical and are sold by the same organizations. The United States, Canada and Australia are parties to the 1949 Geneva Convention, and that is what their motoring bodies issue. Its cover says 1949, it is not the document Vietnamese traffic police are looking for, and checks on the routes tourists ride are routine rather than rare.
⚠️ Check which convention your driving permit was issued under before you rent anything. If the cover says 1949 Geneva Convention, Vietnam does not recognize it, and you are riding as an unlicensed driver whatever the rental shop told you. That matters twice: with the police, and with your insurer, because travel and rental policies generally require you to have been legally entitled to ride. Read the policy wording before you hand over a passport as a deposit.
Two other road rules are enforced. Helmets are mandatory for riders and passengers, and third-party insurance is compulsory. If you would rather not deal with any of it, Vietnam has cheap ride-hailing, an improving rail network and long-distance buses everywhere, all covered in our guide to getting around Vietnam.
Money and Currency: Two Rules That Changed Recently
Start with the border. You must declare cash on entry and on exit if you are carrying more than USD 5,000 or the equivalent in another foreign currency, or more than VND 15,000,000, under Circular 15/2011/TT-NHNN of the State Bank of Vietnam (Vietnam Law and Legal Forum). Either threshold on its own triggers the duty, and the dong figure is the one people trip over, because VND 15 million is only about USD 575 at August 2026 rates. There is no limit on what you may carry, only a duty to declare it.
Inside the country, the dong is the only lawful means of payment. Foreign currency may not legally be used to pay for things, quote prices or set contract values, whatever the menu in a tourist district says. Some businesses take dollars anyway, and you lose money when they do, because the merchant sets the rate. Our guide to cash, cards and ATMs in Vietnam covers how to get dong without paying for the privilege.
⚠️ The gold shop trick is now an offense that penalizes you, not just the shop. For years the best rates in Hanoi and Ho Chi Minh City were at jewelry and gold shops, and nearly every guide written before 2026 says so. Decree 340/2025/ND-CP changed that on 9 February 2026: buying or selling foreign currency at an institution not licensed for it is an administrative violation, with a warning and confiscation below USD 1,000, VND 10 to 20 million from USD 1,000 up, and up to VND 100 million at the top band (Viet Nam News). Use a bank, a licensed exchange counter or an ATM.
Drugs: The One Section With No Nuance in It
Vietnamese drug law is among the strictest in the world and has no tourist exception, no small-quantity exception and no cannabis exception. The UK foreign ministry states it about as flatly as a government ever states anything: penalties for possessing, using, distributing or manufacturing drugs, including cannabis, regardless of the amount involved, are severe, and the death penalty may be imposed depending on the severity of the crime. Canadian advice says the same, listing heavy fines, jail sentences or capital punishment.
Two details are worth adding because visitors get them wrong. Vietnamese law grades drug offenses by weight, and the thresholds that move an offense from possession into trafficking are lower than most people assume, so the quantity somebody calls personal is not necessarily the quantity the law treats that way. And enforcement is not confined to borders and nightclubs: British advice notes that police carry out drug testing at residences and at parties, and that what is sold locally is frequently adulterated and considerably stronger than the equivalent at home. For the broader picture of risk here, which is mostly traffic and petty theft, see our post on whether Vietnam is safe.
Photography and Drones: Where the Camera Becomes a Problem
Vietnam is one of the most photographed countries in Asia and almost nothing about photographing it is restricted. The exceptions are military. Photographing military installations is prohibited, and Canadian government advice extends that to border crossings and adds the detail that matters most: sensitive areas are not always identified as such. Airfields with a military role and anything with a sentry outside are where the phone stays in your pocket.
Drones are a separate regime and a stricter one than most visitors expect. Vietnam manages unmanned aircraft under the 2024 Law on People's Air Defence and Decree 288/2025/ND-CP of 5 November 2025, which covers import, registration, operation and flight permits (LuatVietnam). Permits come from the Ministry of National Defence and applications go in at least seven days ahead. There is a narrow exemption for recreational aircraft below 0.25 kg maximum take-off weight flown outside prohibited and restricted airspace, and even that carries a duty to notify local military and public security authorities. Most travel drones weigh more than 250 grams, which puts them in permit territory, and customs can hold a drone on arrival.
The other kind of photography rule is not law but is worth a line. Rituals in progress are not performances, family altars are private, and ethnic minority communities in the north are photographed relentlessly without being asked. Ask first, accept a no, and never photograph a funeral. Our guide to Vietnamese etiquette covers those lines.
Alcohol: A Drinking Age and a Zero Tolerance Road Rule
The legal position on drinking is straightforward. Vietnam's Law on Prevention and Control of Harmful Effects of Alcohol, Law 44/2019/QH14, prohibits selling, supplying or promoting alcohol to anyone under 18 (LuatVietnam). Age checks at street level are inconsistent, which is not the same as the rule not existing. The same law makes it a violation to urge, incite or force someone else to drink, which quietly overturns the old travel-guide line that you cannot refuse a toast here. You can. Join the ritual and skip the alcohol.
The rule that surprises people is on the road, and it is stricter than nearly anywhere visitors come from. Vietnam runs an effective zero tolerance limit. British advice states that if you are tested and found to have any alcohol in your system you may receive a fine and possible imprisonment, and Canadian advice describes a zero tolerance policy covering cycling as well as driving. Night checkpoints on ordinary roads are normal. One beer with dinner and a scooter back to the hotel is the classic visitor mistake here.
One safety note sits alongside the legal ones: British advice warns about methanol poisoning from spirits, including in licensed venues. Drink branded bottles you watch being opened. Our guide to drinking alcohol in Vietnam covers the social side, which is more fun than this section.
Vapes and E-Cigarettes: Banned Outright Since 2025
This is the most recent change that catches travelers, because it is total rather than partial. Vietnam's National Assembly passed Resolution 173/2024/QH15, which prohibits the production, trade, import, transport, storage and use of e-cigarettes and heated tobacco products from 2025. British government advice puts the consequence for visitors plainly: vapes and related products are banned, you cannot buy them in Vietnam, and you cannot bring them into the country.
That is a real problem for a traveler who vapes rather than smokes, because there is no legal supply once you land and no legal way to carry your own in. Conventional cigarettes remain legal.
⚠️ Airlines are enforcing this too, so it is not only a customs question. VietJet refuses e-cigarettes and vapes entirely, in carry-on and checked baggage alike, so the device does not travel with you on a domestic leg even if it got as far as Vietnam. Power banks on the same airline are cabin only, two per passenger, 100 Wh or under.
Speech, Religion and Social Media: What the State Regulates
Vietnam is a one-party state and it regulates political expression, including expression by foreigners while they are in the country. Canadian government advice describes severe restrictions on political activities, naming public protests and publishing messages critical of the government on social media, and says violations can lead to detention, deportation and a travel ban. British advice adds that possession of political material and non-sanctioned religious activity, including proselytizing, could lead to a temporary ban on leaving the country, a prison sentence or a full travel ban.
Two things follow, and neither is dramatic. A post written on a phone in Hanoi is subject to Vietnamese law in a way the same post written at home is not. And ordinary religious life is entirely open to visitors: pagodas, churches, the Cao Dai Holy See and Mother Goddess temples all welcome respectful ones. What is regulated is organized religious activity outside recognized structures, and proselytizing, rather than attendance or curiosity. Separately, British advice describes Vietnam as a generally tolerant and progressive place for LGBT travelers, with no criminal penalties for same-sex relationships, although same-sex marriage is not recognized in law.
Wildlife Souvenirs: Illegal to Buy and Illegal to Take Home
Ivory, rhino horn, turtle shell and pangolin products turn up in Vietnamese markets and shops, sometimes openly, and their visibility is not evidence that buying them is lawful. Trade in these species is prohibited internationally under the Convention on International Trade in Endangered Species, to which Vietnam is a party, and Vietnamese criminal law carries substantial prison terms for offenses involving endangered and protected species. The seller's confidence is not a defense, and neither is a receipt.
There is a second border to think about. Even if a carved piece leaves Vietnam, it has to enter your own country, and customs authorities in the United States, the European Union, the United Kingdom and Australia seize this material routinely and can prosecute the traveler carrying it. The same applies to genuine antiques, where Canadian advice tells travelers to keep receipts and paperwork and to hold the proper export permits. Vietnam is very good at souvenirs that are legal to own: lacquerware, Bat Trang ceramics, coffee, silk and hand embroidery.
A Few Parting Notes: Gambling, Local Rules and What Changes
Gambling is the small one. Casino gaming is confined to a handful of licensed venues attached to large resorts, where foreign passport holders may play, and betting outside those settings is a criminal matter rather than an administrative one. Informal card games for money and online betting are both on the wrong side of that line.
The larger point is that Vietnamese rules are not static, and the ones most likely to affect a specific trip are often local and temporary. A good example is running on the Cat Ba ferry right now: Hai Phong's construction department, in Notification 292/TB-SXD, suspended the carriage of cars and trucks on the Dong Bai crossing outbound to Cat Ba every weekend from 9 May to 30 September 2026, between 09:00 and 13:00 (Hai Phong City). That appears in no general guide to Vietnamese law, and it would still ruin a Saturday.
| Rule | What the Law Says | Published Penalty |
|---|---|---|
| Overstaying your visa | Decree 282/2025, in force 15 December 2025 | VND 500,000 to VND 40 million by length, plus possible deportation and entry ban |
| Changing money outside a licensed institution | Decree 340/2025/ND-CP, in force 9 February 2026 | Warning and confiscation under USD 1,000, VND 10 to 20 million above it |
| Undeclared cash at the border | Circular 15/2011/TT-NHNN: declare above USD 5,000 or VND 15,000,000 | A customs matter, in both directions |
| Driving without a recognized permit | The 1968 Vienna Convention permit plus your home license | Treated as driving unlicensed, with your insurance position to match |
| Any alcohol while driving or riding | Effectively a zero limit | A fine and possible imprisonment |
| Vapes and heated tobacco | Banned from production through to use, Resolution 173/2024/QH15 | Cannot be bought in Vietnam or brought in, and are confiscated |
| Drugs, any quantity | Possession, use, supply and manufacture are offenses | Severe, up to and including capital punishment |
If you are detained or arrested, your embassy or consulate is the right first contact. Consular staff cannot lift a Vietnamese legal process or pay a fine for you, but they can seek access to you, notify your family and provide a list of local lawyers. Look those details up before you travel.
Paperwork is the part you can settle from home. Your entry checkpoint has to be on the designated list, your passport needs six months of validity and two blank pages, and your permitted stay is the thing to count from. Get those three right and Vietnamese law stays something you read about.