Do I need to submit a new TM30 upon returning to Thailand after a vacation, and how do I handle my 90-day report?

Within 24h of your return you (your landlord) has to submit à TM30.

Your next 90 report is due the date you enter Thaïland (see your stamp in passeport).

90 days means: first day is arriving date!

These questions come up quite a bit and are not lame or obvious

We are seeing more and more offices require a new TM30 when you come in from abroad,

Sadly what that means the answer is; check with your immigration office and see what they say. 😕

Your 90 day report "count down clock" stops when you leave the country before your next report date and when you come back your 90 day report will be due 89 days from the date you stamp in to thailand (the day you stamp in no matter the time is day one 🙂 )