After work permits expires and I wish to stay for 7 days before going back to my country, is this possible? Anything needed to be done from myside?
TLDR : Answer Summary
Yes, it is possible to stay in Thailand for 7 days after your work permit expires. You can apply for an extension at the immigration office. If your application is accepted or if you cancel your work permit, you may receive a stamp allowing you 7 days to leave. It is advisable to get a letter from your employer confirming your end of employment to facilitate the cancellation of your work permit and extension.