Extension To Non-immigrant O Visa In Country

[kawask]

Can anyone advise me on something, I am working here in Thailand and have a valid work permit which was obtained via a Non-Immigrant O multiple Visa (Not Cancelled) would it be possible for me to extend this visa in country, given I have supportive documents supporting financial position and copy of marriage certificate etc

[lopburi3]

During the last 30 days of any entry you can apply to extend for one year if you have the 40k monthly family income, wife, and documentation.

[maprao]

During the last 30 days of any entry you can apply to extend for one year if you have the 40k monthly family income, wife, and documentation.

hi lopburi. At what point in the one year extension would you apply for the second year in Thailand based on the same criteria. Thanks.

[Lite Beer]

During the last 30 days.

[maprao]

During the last 30 days.

I thought that was the case thank you.