Even one extra day can have serious consequences.

Thailand welcomes millions of visitors each year, but the country also has very clear rules when it comes to visa validity and permitted length of stay. Staying beyond your allowed period — even by accident — is considered overstay and can lead to fines, bans, or even detention.

What counts as overstay?

Overstay begins the moment you remain in the country past the date stamped in your passport by Immigration, not necessarily the visa’s validity period. This date can differ depending on your visa type, so always check your permission-to-stay stamp, not just your visa sticker.

⚠️ Consequences of Overstaying

What to do if you’ve overstayed

  1. Remain calm and don’t try to leave the country unnoticed.

  2. Go to the nearest Immigration Office (if your overstay is minor and justifiable) or

    Surrender at the airport before departure.

  3. Bring supporting documents (e.g. hospital records if the overstay was due to illness).

  4. Pay the fine immediately and follow official instructions.

  5. Expect a background check and wait time — so arrive at the airport early.

⚠️ Important: Even if you overstay just one day, you are breaking Thai law.

How to avoid overstay