What are the rules for extending a tourist visa in Thailand, particularly for those holding a TR visa?

Totally normal

Chiang Mai, Buriram, Phuket, & Bangkok ALL let you get an extension when you have 45 days or less left on your current stamp <- meaning IF you arrived on a visa exempt entry stamp you could go straight to the immigration office and get an extension at those offices

I don't know ANY immigration office in the country that'd let someone on a 60 day tourist visa get an extension shortly after flying into the country.

As "inconvenienced" as your friend will be IF he wants that extra 30 days, he needs to suck it up and go back to an immigration office in month.

OR

IF he does indeed hold a 6 month METV <- multi-entry tourist visa he could just bounce out and back in to get a NEW 60 day entry. There is no limit to them as long as they visa is valid.

We are done, thanx for the update, good luck to your friend.

I don't know the whole story or situation, it seems to me that a couple thousands Bahts are small amount of money to pay for avoiding all the hassle.

BTW I never heard of anyone extend the visa same day come here, this is something you do near the end of your first 30 days.

this is just silly! He dont have to report at all, and when he want to extend for another 30 days he can do at any Immigration office near where he is at that time. Just need to stay at a hotel or whatever that day there.

I live in Udon myself, probably the most easy Immigration office in thailand.

Immigration don't give a shit about the TM30 for tourists, so forget that part. As for the extension "inconvenience" he should of got a 6 month METV if he didn't want to be "inconvenienced"

I agree with Robert in the sense that irrespective of budget, it's up to the travellers to adhere to the host conditions regarding extension submission times etc. Just tell you friend to go and check into a cheap hotel for on night and ask for the screenshot of the submission the go and apply for the extension... all problems solved. As for submitting a TM 30 camping... I wouldn't even worry about it

With over 70 Immigration Offices nation wide, I do not believe the increase of budget by couple of thousands Baht. He can visit any office in the area where he is hiking