you can buy the "Family ELITE Privilege Visa" however your daugther at age 18 is too old to still count as a member of the family, and will need her own ELITE Privilege Visa. With this visa, you can leave and return, no hassles, no Immigration checks only have to extend every year for the next year for a fee of 1900 THB

the expect the group to arrive on the same flight with you, and standing in front of the Immigratin counters together with you

@Frank *********

so far so well , , , , , but the real fact is, he won't get stamped back in for another year unless he shows a new health insurance F.I.C. valid for another year. His multi re-entry permit is only good until the expiry of the validity of the visa, and it only allows him to return and getting stamped back in for the duration of the initially stamped (first year) stay permit

@Pete ******

IMPORTANT !! . . . what you need to show upon re-entering Thailand after a stay abroad, if you are still within the one-year visa validity, is a NEW one-year health insurance. Because otherwise you will only be stamped in for the rest of the stay permit you recieved when you first entered Thailand on your O/A visa. You need a new 1-year insurance and have to present this insurance form and the F.I.C. to the border official, if you want to get stamped in for another 1-year stay permit.

@Yeo *********

thee is nothing such as a "free year"

@Pete ******

okay, so this means you got a multi re-entry included until the expiry date of the visa validity. Attention: this expiry date is NOT the same date as the expiry date of the 1-year stay permit you got stamped in on September 1. So as long as you enter before the expiry date of the visa (that's the date behind the text "visa must be used until" on the .pdf visa document) you will get stamped in for another 365-days, which however depends on how long your health insurance is carrying you, as you will get stamped in for not any longer than the expiry of the insurcance - OR for a maximum of 365 days. AFTER the expiry of the visa validity, you do not have a multi re-entry permit any more,. This means, that if you wish to travel and exit Thailand during the "second year" you need to buy a re-entry permit in order to keep the most recent stay permit stamp alive

@Pete ******

are you in the first year of the O/A visa? In the first year you don't need a re-entry permit, because there is a multi re-entry permit included in your visa. . . . . Or are you already in the second year, then you need to buy a re-entry permit. Or are you already on a 1-year Extension of Stay Permit out of a long expired O/A visa, then you also need to buy a re-entry permit for this one-year stay permit

@John ******

Thailand doesn't offer anything like a "30-days holiday visa". There is nothing such. There are: a 15-days VOA you can buy for 2000 THB before entering - but only for selected few nations . . . There is the 60-days STAY PERMIT you and citizens of 93 nations get stamped when you arrive without a visa. And last but not least there is the 60-days single entry Tourist Visa that gets you stamped in for 60 days. . . . if you now spend a holiday, or sighseeing, or studying, or travelling around on history's tracks, or hang around in Soi 6 lady's bars, - that's totally up to you. However it doesn't give you the right to call a tourist visa or any of the above "holiday visa"

@Terry *******

the visa itself becomes invalid upon entry, because it is a single entry visa, as far as this goes, you are right. However, for any stay permit issued you can buy a re-entry permit. So this means, when you enter on a 90-days single entry Non-O visa, you get stamped a 90-days stay permit, the visa expires, and for this stay permit you can buy a re-entry permit

@Terry *******

this is not true. He can buy a re-entry permit for the first 90-days stay permit and exit Thailand. He then just needs to return before the initial 90-days stay permit stamp expires (because the re-entry permit does not keep his stay permit alive any longer than he got stamped in initially)