Here is my story.

5 sept 2013 received a 90 day tourist visa from consulate in USA, entered Thailand 14 September 2013.

1 Dec 2013 Received a Non-O at BKK immigration with expiration date 1 March 2014.

I had not left Thailand since I got there on 14 September. I left the Kingdom on 14 February 2014 before Non-O expired. I did not get a re-entry permit, just got stamped out as departed.

I am returning on 18 March and want to get a 30 day stamp that I will want to convert to a Non-O then retirement extension.

My question is will Thailand allow me to enter and give me a stamp? I read somewhere about a limit of time you can spend in the Kingdom within the past 6 months and I hope I did not exceed that time.

Thanks for your help.

Edited March 14, 201412 yr by rideswings

You can enter Thailand with no problem if the airline will permit boarding without a visa or return ticket !

A "conversion" is possible if the requirements of a subsequent application for an extension to stay are met.

Why not make it simple and obtain a single entry non "O" visa from an honorary consulate in your own country ?

Edited March 14, 201412 yr by thepool

You can enter without a problem.

If you want to do the conversion again you will need to do it within 15 days of arrival or they will not accept your application.

Thank you so much for the help!