Can I handle my 90-day retirement visa extensions and reporting in Hua Hin instead of Bangkok?

You can complete all your immigration reporting and extensions at the immigration office in Hua Hin. When you enter on a 90-day Non-O visa, you will need to file a TM30 form at the office in Hua Hin within 7 days of arriving at your residence. You can also obtain your yearly extension and handle your 90-day reporting there, eliminating the need to travel to Bangkok.