Hi, I wonder what is the earliest possible date to extend my covid extension at the immigration. I used to go there one week ahead, but I wonder if I could also go two weeks before it is due to give me some time in case I get denied.
Thank you!
TLDR : Answer Summary
You can typically apply for a visa extension when you have 30 days or less remaining on your current visa stamp. Some offices, like those in Buriram, Bangkok, and Chiang Mai, may allow you to apply with 45 days or less remaining, while places like Jomtien recommend visiting the week your stamp is set to expire. It's important to check with your specific office for their rules.