Can I apply for a Non-Immigrant 'O' (Retirement) Visa if I'm not technically retired yet?

If you're over 50. But you can't work in the Kingdom.

Mike where are you from?

The name "retirement visa" is very misleading.

If you are 50 or older and working like crazy outside of Thailand you can get that visa if you qualify for the requirements. But if you would be 49 and really retired you wouldn't be able to get it.

No idea why discrimination by age is so important for this kind of visa. As if those under 50 are unwanted irresponsible young brats, but 50 and up are mature, wise (wo)men of respectable age who can handle this kind of visa ?

Not a problem if over 50 years of age

No

a lot of pappers double of everything

& time

I did it this year

It takes about 45 days & cost 2000 baht

Technically, a "retirement visa" doesn't exist. These visas are for people who are 50 years or older, and can meet certain income requirements from overseas.

As soon you are 50 years old you can apply for a retirement visa if you have enough money. No need to be retired in real life.