Do I have to leave Thailand immediately after canceling my work permit?

The cancellation of a work permit in Thailand directly affects the associated Extension of Stay. As noted, when the work permit is cancelled, the Extension of Stay will also be terminated on the same day. If the individual applies for a new Extension of Stay and does not meet the requirements, they may receive a denial stamp and be given 7 days to leave the country. Additionally, it's important to remember that the work permit itself is not cancelled at immigration; rather, the individual needs to cancel their current Extension of Stay related to the work permit.