Is it too late for my friend to notify Chiang Mai Immigration about her address?

That is the reason he also made a picture of the date stamp. 3 Sep 2018, to avoid confusion.

Can do ;) It was just my two cents. It does happen, but dont count on it! Maybe Buengkan being such a small, and relatively new, provinse is different than most. Been coming there for years, and know a lot of the faces, and they (most of them anyway) know both me and my father.

@Mikkel ******

Filing a TM.30 (alien in residence) form within 24 hours after you hit the country and get back home is nothing to do with failing to file a 90 day report within the window of opportunity.

How about we run under the premise that not everyone will have as "cozy" of relationship with an immigration office as you do up in Bueng Kan province :O

Let's stick to the facts and what the files for failure to file a 90 day report on time are. It's 2000baht whether your 8 days late or 8 months late :O

@Gordon *********

You do a 90 day report at the immigration office where you get your extension. You can't do it out of area

I have.. Also for the 24 hours after entering Thailand.. It depends on the officers and your relation with them. I cant speak for others, that's just my personal experience.

@Mikkel ******

You don't get warned at any immigration office I'm aware of for failure to file a 90 day report on time

I personally have a good rapport with several of the IO in Buengkan.. They will accept small errors with a smile.. To show my gratitude I occasionally bring a bag of fruits for them when I go there ;)

If you are looking lucky, just a warning.. But they can fine you if they feel like it.