I’ve lived in Vietnam for nine years and run a visa service out of Da Nang, so I usually hear about these problems the moment they happen, right at the border counter. The short version: overstaying your visa, working without a permit, and touching drugs or unlicensed gambling are the three that actually get foreigners fined or deported here, and under Decree 282/2025/ND-CP, which took effect on December 15, 2025, the penalties for most of them roughly doubled.
What Happens If You Overstay Your Visa in Vietnam?
Overstaying triggers a fine that scales with how many days you’re late, and past 16 days you can also be deported. Under the current decree, an overstay of 16 to 29 days costs 5,000,000 to 10,000,000 dong, roughly $190 to $380, up from the previous 3 to 5 million bracket. Push past 90 days and the fine climbs to 15,000,000 to 20,000,000 dong, and immigration officers gain the authority to deport you outright at the airport, a step up from the fine-only handling of shorter overstays.
I see the same confusion at the border almost every week: someone counted their visa days wrong, or their agent told them one expiry date and immigration has a different one on file, and now they’re standing at the counter doing math under pressure with a flight to catch. That panic is where people make it worse - arguing with an officer, or trying to leave through the wrong checkpoint because it’s closer.
If the overstay is serious enough, or you don’t pay the fine, Vietnam can put you on an immigration blacklist with a re-entry ban of one to five years. That ban is the part people underestimate - a $200 fine is annoying, but losing the ability to come back for five years changes travel plans entirely. I’ve written up the full breakdown of overstay fines and entry bans with every bracket if you want the exact numbers before you travel. If your visa is about to run out and leaving the country isn’t an option, it’s also worth checking whether you can extend it without leaving Vietnam first.
Can You Work in Vietnam Without a Work Permit?
No. Working without a valid work permit gets you fined 15,000,000 to 25,000,000 dong and, under Decree 12/2022/ND-CP, Article 32, you face mandatory deportation. A permit that’s expired counts as no permit at all, with no grace period.
Your employer pays too. Businesses hiring foreigners without permits face fines from 30,000,000 up to 75,000,000 dong depending on how many workers are affected, and a registered company pays double the rate an individual employer pays. Decree 219/2025/ND-CP, effective August 7, 2025, cut the permit processing time from 20 days to 10 and added 15 exemption categories, so freelancers doing short-term work should check whether they qualify before assuming they need a full permit at all. If you’re trying to figure out which documents your employer needs to file, I’ve laid out the full work permit document checklist separately.
What Are Vietnam’s Drug and Vaping Laws for Foreigners?
Drug laws in Vietnam carry no tourist exception. Possessing or using cannabis is a criminal offense that can bring up to 20 years in prison, and trafficking more than 600 grams can carry the death penalty. CBD products with detectable THC are legally treated the same as any other narcotic, regardless of what’s legal where you flew in from.
Since July 1, 2025, drug use itself became a standalone criminal offense in some circumstances, where before it was handled administratively. Anyone caught using or holding drugs also faces visa cancellation and deportation on top of the criminal case.
Vaping is a separate, much smaller trap that catches more people by accident. Vietnam banned the production, import, and sale of e-cigarettes and heated tobacco devices in 2025, and tourists caught vaping face fines of roughly 3 to 5 million dong, about $114 to $190. Selling or bringing in vape stock for resale is a criminal matter with jail time attached.
Can Foreigners Gamble in Vietnam?
Only inside licensed casinos, and you need your passport to get in. Foreigners can legally gamble at Vietnam’s licensed casinos in designated economic zones, but card games for cash in a café, private poker nights, and online betting sites are illegal for foreigners and locals alike.
Decree 147, in force since December 25, 2024, tightened enforcement specifically against online casino-style and card gambling. Organizing or facilitating illegal gambling, even informally hosting a game, can carry a prison sentence of 3 months to 10 years depending on the scale.
Do Tourists Need to Register Their Stay With the Police?
Your hotel or landlord handles the registration. Under Vietnamese law, whoever hosts you has 12 hours after check-in to declare your stay to local police, or 24 hours in remote areas, and if they skip it, they’re the ones on the hook for the fine, at least in theory.
Where this becomes a foreigner’s problem is renting a private apartment or homestay off a booking app where the host skips registration entirely. If police check and your stay was never declared, you can be fined 500,000 to 5,000,000 dong for being in the country without valid residence documentation, even though the paperwork failure was technically the host’s. This is the part long-stay renters get burned on most: a host who’s happy to take a bank transfer for a month-long lease but never actually files the registration, so the guest finds out only when police show up. I ask every long-stay client for the host’s registration confirmation before the first payment goes out. It takes one message to the host and a screenshot back - on our side, we tell you exactly what to ask for; on yours, it’s just sending it before you commit to the lease.
Can You Photograph Vietnam’s Border Zones and Airports?
Not without permission, and the signage isn’t always in English. Military installations, border checkpoints, and restricted zones near the Chinese and Cambodian borders are marked, usually with red signs and visible guards, and photographing them without clearance is enforced, with reported fines reaching roughly $800 under tightened 2025 rules - treat that figure as an upper estimate rather than a fixed price, since the exact clause is hard to pin down from public sources.
Airports and aerodromes carry the same restriction and extend to drones specifically. Flying a drone near an airport, or in most of Vietnam without a permit, is banned for residents and tourists alike, and the approval process for foreigners is even more involved than for locals.
What License Do You Need to Ride a Motorbike Legally?
You need an International Driving Permit issued under the 1968 Vienna Convention, paired with your home country’s license. Vietnam does not recognize IDPs issued under the older 1949 Geneva Convention, which is what several popular IDP providers in the US and elsewhere still issue, so check the convention your permit was issued under before you fly.
Riding without a valid license costs around 5,000,000 dong, roughly $200, and police can impound the bike for 10 to 15 days on top of the fine. The part that surprises people most: riding without a valid license also voids your travel and medical insurance, so a minor accident becomes a bill you’re paying entirely out of pocket.
Political Speech, Religion, and Currency Exchange: The Quiet Traps
A few restrictions don’t look like crimes until you’re already in trouble. Vietnam’s Article 117 criminalizes producing or distributing material “against the State,” and that wording has been used against journalists and bloggers posting political criticism, including foreigners. The U.S. State Department has documented cases of foreign nationals detained for political material or unauthorized religious activity, including proselytizing without government approval.
Currency exchange has its own quiet trap. Since February 9, 2026, exchanging foreign currency outside licensed banks or approved exchange counters, including gold shops that used to do this informally, is banned. Fines are tiered by amount and run from a warning under $1,000 up to roughly $9,500 for larger unlicensed transactions. If you have leftover dong at the end of your trip, the departure zone of an international airport is the reliable place to convert it back.
Mistakes That Turn a Small Fine Into a Deportation
Almost every deportation case I’ve heard about started as a fine someone ignored while they still could have paid it. Missing your overstay window by a week is a manageable fine; missing it, then arguing with the officer, then trying to leave through a checkpoint that doesn’t handle overstays, is how a $200 problem becomes a five-year entry ban. The same pattern shows up with work permits: people work on a tourist visa “just for a few weeks” assuming nobody checks, and get caught during an unrelated ID check months later.
If any of this sounds like your situation, don’t wait for it to become one. Message me on Telegram with your visa dates and I’ll tell you exactly where you stand and what to do next, usually within the day.
