My family (6 of them) will oversaty their 30 day tourist visa by 1 day.

Being 6 this could be Bt.3000 (6 at Bt.500 per day)

Is it better to go get an extention on their current visa(does this cost anything) or just pay for the 24hr overstay.

I heard somewhere that there was a 24hr allowance for overstay?? True?/

Thank u

The overstay fine is 500 per person per day (max 20k), but is not charged for children under 14. If you are leaving the country by air, a one day overstay fine will not be charged at the airport. Passports will be marked, but it does not prevent you from returning to the country or obtaining another visa. You just have to be careful not to be stopped by the police on the way to the airport as you are on overstay. 7 day extensions are 1900 baht each (but no need to obtain for children as are not fiined for overstay).