My Thai wife owns two houses approximately 600 kilometers apart in Thailand, and she now wants to sell the one we spends less time in. Our property agent advised her to change her registered address in her dark blue Thai house registration book (Tabian Ban) to the same address as the house she's selling to save significantly on sales tax (if it’s sold). However, both she and I are now registered as to live in the other house as in the house registration book and on TM30 address report.

My plan is to soon make an extension (60-days likely) based on that I entered Thailand on a Non O E-visa as married with January 29th as my last day on my current 90-day stay permit in my passport. Our current plan is to leave Thailand on like March 29th as to go back living in Sweden until October.

Questions.

If my wife wants to change address in her house registration book after I done my extension on the location that we are registered to live at currently. Do we then need to travel to the location of the house for sale and go to the local Immigration Office there as to make a new TM30 Address Report.

Can my wife change address as in her existing dark-blue Thai (Tabian Ban) House Book or do she need to get another as to get registered as she is living in the house as is to be sold?

Thanks in advance.