I have a non-O multiple visa based on marriage which will expire at the end of December (30th) this year. I commute back and forth to Thailand due to working abroad.

I entered Thailand earlier this month (november) so my 90 days stamp will be valid till Feb 2015.. However, I need to leave at the beginning of December and won't be back until January 2015.. is it possible to get a re-entry permit based on the 90 day permission to stay or do I have to re-apply for another NON-O in January..

Or is it possible to apply for an extension of stay in December even though my 90 day permission is still valid?

Many thanks for the help

Yes, you can get a re-entry permit to keep your permission to stay till Feb 2015 valid.

You can apply for a re-entry permit for your 90 day entry. Then apply for your extension of stay when you return.

The earliest you can apply for your extension is the last 30 days of your current entry.

Many thanks for the help.......