What documentation is needed to obtain an STV visa in Thailand regarding accommodation confirmation?

To answer the question directly, you can get the booking confirmation directly from the hotel itself. Most hotels have open rooms, and I'm positive the hotel owner will give you a tax ID number easily if you prepay for 75 days.

Yep...its very very strict.

Provide the actual documents as required

You will get the STV.

And for each 3 month extension you will have to provide the same required documents for each 3 month extension.

And do yourself a huge favor...buy the full 9 months of required insurance as its very difficult to get the policy extended when already inside Thailand. Several expats have been denied extension as they could not provide needed proof of insurance.

Recent report posted:

I was in Nonthaburi to extend my STV visa. Here's what the officer asked

1. Copy of passport

2. Copy of TM6

3. Copy of STV visa page on your passport

4. TM7, use the last updated one or get it from Immigration Office. With a photo affixed.

5. STM 2. Declaration that you're aware about overstay and the penalties.

6. ASQ certificate letter stating that you've completed 14 days quarantine.

7. Some kind of proof that you indeed stayed at the ASQ, i produced my ASQ hotel receipt ( room charges )

8. Health Insurance showing coverage amount, line by line items in details of IP, OP, Covid coverage amount.

9. Rental. To state clearly rental period when to when, at where, 4 signatures either passport or Thai ID at the end of agreement ( the usual standard contract ). If the rental's address is in Bangkok, you can only extend visa in Bangkok. Rental period should cover at least 3 months more.

And sign at every page.

Good Luck !