Can I switch from an Education visa extension to a Retirement visa at age 50 in Thailand?

I have done this process at Chiang Mai a few years ago, so it can be done, but it is possible that they will initially say that you can't change the reason for extension from ED to Retirement (I was told I would have to leave Thailand and get a new visa, which I refused to accept as valid), in which case, just ask to speak to a more senior officer (possibly, it isn't a common procedure, but it is very straightforward in fact). Do make sure that you have a letter from your school confirming that you want to cancel your ED as

@Tod ********

has said and then it's a straightforward process.

Why inbox ...everybody learns from a open group and the individual is open then to options to suit his particular visa and extension issues .....

Are you now at a school where you get 90 day extensions of stays based on education for 1900baht at the immigration office?

If so you're not changing ANY visa (because you're not on a visa, you're on an extension) what you are doing is changing the reason for your extension.

You go in to the immigration office and cancel your extension based on education (with documentation from your school) then you immediately apply for a new year extension based on being over 50 (retirement), by submitting the correct documentation, having the 800K baht in your bank account for 60 days before you apply, updating the bank book on the day you apply and having the letter from the bank too.