Is there an immigration office in Koh Samui or Koh Tao that issues a 60-day COVID extension?

I'm from Samui. The process is similar as reported in Chiang Mai. 15 days under consideration then remaining 45days stamped on that 15th day (so 2 visits at immigration, must be same office and must be where your address is registered).

The latter is one issue you'll have to deal with before requesting your Covid extension in Samui: having your address registration done in Samui district (either Samui, Phangan or Tao) before being able to apply for an extension at Samui's immigration office. Hotels and other rentals have 24 hours to report your stay at immigration (TM30). So you either check-in at your place in Koh Tao and come back to Samui/Phangan immigration office to make your initial covid extension request then come back again 15 days later for the remaining OR stay 2 days in Samui prior to leaving for Tao and have your initial request done to save one back and forth trip from Tao.

* I'm not sure the Phangan imm. office still operates

* Some people have their full 60days stamped in on initial request but they weren't on their first extension in Samui

I’m at the immigration as we speak. Waiting to get 30 days.

There are forms here for a 2 month Covid Extension. I understand that your country’s restrictions have to prevent you returning. Not sure how strict they are.

The immigration office is in Soi 1 Maenam

Get here early - it’s quite busy, but efficient

here's the Surat Thani Immigration website that lists the immigration offices in that province.

Post on one of the southern island f/b groups or on the group Sticking it out in thailand and ask which one is better for you to apply at