Do I need to file a TM30 again for my second COVID extension?

When applying for a second COVID extension in Thailand, you typically do not need to file a new TM30 unless you have changed your residence since your last application. The TM30 is valid as long as you remain at the same location. If you return to your original residence after staying somewhere else, a new TM30 must be filed. It's advisable to submit the same documents as in your previous application.