Hi amw3000

There are almost a weekly posting on another forum (Thai Visa Forum) asking the identical question. To save you the time and trouble trawling through the thousands of post on this subject allow me to give you a simple breakdown of the situation.

Legally, any work that is undertaken within the Kingdom by a non-Thai requires an appropriate visa and a work permit. That includes working on line for a company that is not based within the Kingdom for which you may or may not be receiving payment. Obtaining an appropriate visa (either a non-B or a non-O based upon marriage to a Thai) will be difficult enough in the first place but getting the work permit to suit your situation is going to be dam nigh impossible.

The general consensus from TVF is that if you work discreetly then it is highly unlikely that you will have a problem. As far as I am aware, no one has been arrested for digital nomad working in the Kingdom. The general advice is don't tell anyone that you are doing work of any kind because if for some reason you upset someone the chances are they may report you to the authorities and then the sh!t will fall upon you big time (arrest + prosecuted + fined + deported + banned). It is suggested that you do your work in the privacy of an apartment or hotel room. If you do work outside in a café, bar, free work stations etc. don't do it all day and move from one location to another each day. It's really a matter of using common sense.

Hope that helps.