Can I extend my Non-B visa based on employment if my work permit expires soon?

The island life make things complicated, the Thais would say: Same Same but different. Thanks Tod to clear it up again.

Okay, lets get a few things clear about the terminology.

Once you have a Non-B visa (gotten either inside or outside the country) you can take documentation from your employer to the immigration office and apply for a yearly extension for 1900baht. Sometimes if it's a volunteer position they will only extend for 90 days at a time though.

That has nothing to do with going outta the country to a thai consulate and BUYING another Non-B visa (which is NOT extending a visa but buying a brand new one).

They are completely different things entirely.

Many people who hold Non-B's (especially in southern thailand and on the islands) don't get yearly extensions because they cannot supply the documentation requested from the immigration office to get an extension of stay granted. Instead they go to thai consulates and get a year-long, multi-entry Non-B visa (the kind you border-bounce every 90 days to get another 90 day stamp).

So the answer to the O/P is; yes if your company can meet the documentation required by the immigration office you can indeed apply for a yearly extension of stay based on employment for 1900baht (and then after that if you need to buy a re-entry permit for either 1000baht for a single or 3800baht for a multiple). You shouldn't have to leave the country and buy another Non-B from a consulate.

Is that a non-B multiple? If so, you have to apply for a new one but since your wp expires in December you can only get a single entry for 3 months I believe.