Can I leave Thailand and immediately return on a tourist visa the same day my work permit is cancelled?

You can leave Thailand at the Laos border on the same day your work permit and visa are cancelled, and return on a tourist visa upon arrival. There is no legal requirement for a minimum waiting period, but be aware that some borders may have informal practices that suggest waiting 24 hours. It's essential to ensure that your work permit and extension are officially cancelled at immigration before leaving.