What are the steps to convert my Non-Immigrant O visa to a Retirement visa in Chiang Mai?

The Bank has a special printout to show at immeigration, as far as I know it has to be there 3 Months 800 K, but not sure .

Photo taken at Chiang Mai immigration

You need 3 things from your bank. Bank letter, Bank Statement and Copy of an updated bank book.

You can also start now bringing in 65 K a month and use that next year so you’ll not need the 800k to extend

Visit imigration first and ask to know what their requirements are. It differs between different imigration offices

Okay, let's see if we can't get you sorted,

First off, you're not converting anything 😮 You have a 90 day Non-O visa right now (y) What you'll be doing is applying for what's called a "yearly extension of stay" from it for 1900baht.

In Chiang Mai you can apply for an extension when you have 45 days or less left on your current stamp and you meet the proof of funds requirements.

You need to get a "standard bank letter" and have the bank print out a 3 month detail transaction report as well as update your bank book the day you apply for the yearly extension.

This is a GENERAL list of things that can be required, it is not immigration office specific so I would post on a C/M specific group OR slog on over to the main immigration office by the airport and get the requirements.