How can I extend my stay in Thailand before my work permit expires?

When you say you're waiting for a visa, what exactly do you mean?

If you try to go for the 7 day "application denied" stamp and get it, you must leave Thailand after those 7 days. You can't get another visa or extension or anything inside Thailand. The extension denied stamp has no other options than to leave the country.

Are you still working or have you already stopped?

You are right. You will get an application-denied-7-days-to-leave-kingdom stamp when your extension application is denied.

BUT be sure you are still on the first 90 days immigration stamp (permitted to stay until), NOT the expiry of the work permit.

You also better cancel your work permit beforehand at the labor office.

You are going to go to the Chaengwattana Immigration office, Government Complex Building B to apply for an extension based on whatever reason to get 7 days stamp.

You will go here.



And you can book online if you want to