What are the TM30 requirements for staying at my girlfriend or wife's house in Thailand?

Should probably start by deciding whether you want to live in your wife or your girlfriend’s house.

What if you have the yellow book and a Thai ID card?

As Greg says except you dont have to visit immigration to get a weblink. Just find the official gov web site, she registers account, registers property, uploads copy of blue book and ID, and then registers your stay. Save and print the tm30 pdf.

“I see talk about the TM 30 ,

What is the requirement if I live in gf or wife’s house?”

Easy Peasy

Visit Immigration with your wife or girlfriend. She has to bring her blue housebook, and her Thai ID-card

She can file a first TM30 on Immigration on your behalf.

She will be given the Weblink, where she can register her House or Condo in the TM30 system. Once she registered, she will be issued a login-name and a password.

With this password, you and she will be able to register you in the system, each time after you have arrived at her accommodation, and there will be no need to visit Immigration

You can choose address at your girlfriends house, but don't tell you wife if you do.

😉😁

You and gf go to immigration, with the owner of the house don't forget the bluebook! A signed copy of her or the owner ID card and a copy and signed copy of your passport then fill some papers then you get tm30 has to be done 24h after you landed as Brandon says.

Side note if you have applying visa before arrival your gf needs to write an invite to the house.

The same as anywhere else. The property owner is required to file a TM30 within 24 hours of your arrival at the address.