In addition of the offer for a free online Thailand Revenu Catalog, I will post here frequently items out of my blog. Both catalog and complete blog can be found in
Newly issued Thailand revenue stamps hardly get any attention from the current revenue collectors. I guess it's similar to newly issued postage stamps. Many of the new Thai revenue stamps are either self-adhesive or they are glued to the neck and cap of the bottle with glue which does not dissolve in anything (some stamps loosen when using Isopropanol), resulting in severely damaged stamps.
Luckily the quantity of different stamps reduced greatly in the past few years.
Since the year 2020, the following stamps are issued;
No Tax paid for alcoholic beverages. total 1 stamp
5 different color tax stamps for alcoholic beverages total 40 stamps
2 different tax paid stamps for cigarettes total 2 stamps
3 different stamps for documentary tax, 1, 5 and 20 baht, total 3 stamps
3 different stamps for other tobacco products total 3 stamps
The No Duty Paid stamp, (from my blog)

This is a stamp found in a tax fee shop at Bangkok airport. It is issued by the Thailand Excise Department, and it indicates that the duty or tax is Not Paid. It comes from a bottle of whiskey, but all bottles independent of the kind of alcohol have the same stamp.
Reading the QR code shows that the stamp comes from the year 2020, however the first time I did see this stamp was in August 2023. The QR code is very generic, it does not show any brand name, volume or alcoholic strength.
The stamp is self-adhesive and is difficult to get off the bottle. After that, it is still very sticky and is put inside a stamp mount.
Since 2020, all the newly issued Thai revenue stamps have a QR code. At a later time, I will show a summary of all different stamps issued with a QR code.