What are the visa implications of having an overstay stamp in Thailand?

The overstay stamp in a passport can raise concerns regarding entry and visa approval in Thailand. While anecdotal evidence suggests that individuals are rarely refused entry solely due to an overstay stamp, it is important to note that the duration of the overstay can play a significant role. Long overstays—such as those over 90 days—could lead to mandatory bans. It is advisable for those with an overstay to apply for a visa at the consulate or embassy before attempting to re-enter Thailand.