Can I get a 60-day extension on a 1-year Extension of Stay based on marriage?

60 days extension would be either based on visiting a Thai family (if you didn't get one on your current entry) or being unable to travel due to Covid (if the immigration office grants you). Different requirements for those.

Yes you can. You can get a 60 day extension of stay based on unable to travel due to COVID-19.

Different immigration offices have different requirements, but all require the following:

1. Your passport and:

a. a copy of your data ("picture") page

b. a copy of your most recent visa (if you have one)

c. a copy of your most recent stamp

d. a copy of your departure card

2. A TM30, filed in the immigration office.

3. The forms (each immigration office may have different forms, and want to use their special forms)

4. A letter from your embassy saying you can not return, OR a print out from your embassy website saying they don’t issue the letters, OR a print out of a letter from the embassy saying they don't issue those letters.

5. 2x passport pictures

6. 1,900 THB.

Different immigration offices have different policies. *SOME* may require:

- The ID card of the property owner where you are staying

- Copies of *ALL* stamped pages in your passport