Once the “O” visa is issued be it single or multiple entry you can obtain a one year extension. This is called a spousal extension and usually straightforward. This is applied for at Thai immigration. There is a set criteria for the ‘spousal extension’ of the Thai Marriage Visa.
These would include the showing of the required minimum amount in a Thai bank account or income of at least 40,000 Baht per month. There is also the question of a medical certificate, marriage certificate amongst other rules.
Once you have the ‘spousal extension’ of the Thai marriage visa you do not need to leave Thailand again. Should you decide to take a trip out of Thailand you would need to apply at Immigration for a re-entry permit to not invalidate the marriage visa. Once this is granted you may leave and enter Thailand again without affecting your marriage visa. Should you not apply for a re-entry permit, once you leave you automatically cancel your marriage visa and the ‘spousal extension’.
|Thai Marriage Visa|
|Thai One Year Visa|