Thailand Overstay — Fines, Bans, and What to Do

The standard overstay fine is 500 THB for each day you have overstayed, up to a maximum of 20,000 THB for a single overstay. If your overstay exceeds 40 days (20,000 THB maximum divided by 500 THB/day), the daily fine stops increasing — but the other consequences do not.

Example: 10 days overstay = 5,000 THB fine. 40 days = 20,000 THB fine. 100 days = still 20,000 THB fine (cap reached), but a potential entry ban.

The fine is paid at the point of departure — at the airport or land border when you leave Thailand. You pay at the Immigration counter before the departure stamp is applied. You cannot pay the fine in advance at an Immigration office in Bangkok and then leave later — it must be paid at the exit point.

Exception: if you surrender yourself voluntarily at an Immigration office before departing, you can pay and arrange departure. This avoids airport arrest on departure day.

Ban duration depends heavily on whether you leave voluntarily (surrendering yourself or departing normally and declaring the overstay) versus being caught or arrested by authorities — and the gap between the two is large enough that it should genuinely change your behaviour if you're overstaying.

If you leave voluntarily, an overstay of 90 days or less typically results in no entry ban at all — this is consistent with the one-day overstay scenario below. Beyond that: over 90 days typically means a 1-year ban; over 1 year, a 3-year ban; over 3 years, a 5-year ban; over 5 years, a 10-year ban.

If you're caught or arrested rather than leaving voluntarily, the bans are dramatically harsher: an overstay under 1 year can trigger a 5-year ban, and an overstay over 1 year can trigger a 10-year ban — roughly double the voluntary-departure tier at every level, sometimes more. Being caught can also mean detention, deportation, and court involvement, on top of the ban itself.

These are administrative guidelines — individual cases may vary at officer discretion. But the pattern is consistent enough to matter: announcing an overstay yourself, as this guide recommends throughout, isn't just about controlling the process — it's the difference between a 1-year ban and a 5-year one at the same overstay length.

If you overstayed and are discovered at the departure airport (Suvarnabhumi, Don Mueang, Phuket International, etc.): the Immigration officer at the departure counter will flag the overstay. You will be taken to the Immigration processing area, asked to pay the fine (500 THB/day up to the 20,000 THB cap), and your passport will be stamped with the overstay record. You will then be allowed to depart — you are not typically detained for short overstays.

The entry ban (if applicable to your overstay duration) will be applied to your record. Your passport is not confiscated — the ban is recorded on the immigration system against your name and passport number.

A one-day overstay (you leave one day after your permission expires) results in: 500 THB fine, payable at departure. No entry ban for a single-day overstay. The overstay is recorded in your immigration history.

This is the most common overstay scenario — people miscalculate their permission expiry date. The exit stamp says "overstay" and a 500 THB fee is collected. It is uncomfortable but not catastrophic.

SHORT OVERSTAY (days to a few weeks): depart Thailand and pay the fine at the exit point. Announce the overstay proactively to the Immigration officer — do not attempt to conceal it.

LONGER OVERSTAY: consider surrendering yourself at the Immigration Bureau before your planned departure. This allows you to handle the paperwork in a more controlled environment than an airport departure queue. Visa Centre can advise on this process.

DO NOT: attempt to exit via a minor border crossing to avoid detection. Thai Immigration databases are connected. Do not attempt to pay someone to clear your record — this is fraud and exposes you to arrest.

The most common cause: misunderstanding the permission date. Your permission to stay expires on the date stamped in your passport — this is not the same as your visa expiry date. Check the stamp, not the visa. The date in the stamp is the latest date you must leave or have extended your stay.

Set a reminder 2 weeks before your permission date. If you need more time, apply for an extension at the Immigration Bureau before the permission date, not after.

Overstaying your permission-to-stay date is a separate issue from other Thailand compliance obligations, and the two shouldn't be confused. The Thailand Digital Arrival Card (TDAC), mandatory since 2025 for every international arrival, is about entry, not length of stay — missing it can cause boarding or entry problems, but it's unrelated to overstay penalties. The TM30 address-registration obligation is similarly separate — a missing TM30 can block a visa extension application, but it isn't itself an overstay. Keeping these three obligations mentally distinct (TDAC on arrival, TM30 for your address, overstay for your permission-to-stay date) makes it much easier to know exactly what you're dealing with if something goes wrong.

General guidance only. Overstay consequences are established under Thailand's Immigration Act B.E. 2522 and related ministerial regulations. Independent visa assistance agency; not affiliated with any government body.