Do I need to report to immigration after returning from Cambodia before going to the U.S. and again after returning from the U.S.?

@Mi**

You don't need to turn in any paperwork that I am aware of.

IF you already did a TM.30 form you have the receipt in your passport now, you take that in (within 24 hours of you getting back into the country and back home) and they will put a new date stamp on it, AND they update their information in the system with your new departure card number.

Then when you come back from the US you do the same thing.

I know people who travel a lot that have 5 or 5 different dates stamped on their original TM.30 receipt.

definitely take your TM.30 receipt in to the immigration office when you get back from Cambodia and get it updated with your new departure card number and date. THEN do it again when you get back from the US.

Phuket is hard as nails about that TM.30 and you don't need to get on their wrong side about it at all.

Officially your landlord, house owner or the manager of hotel should report you. Don't worry about hotels, they now, if you have totally nothing to do at Immigration during the few weeks you stay in Phuket nobody knows you were there. So if the landlord, house owner don't make the report by themselves, I would not worry for those few weeks.

What type of your visa ?