If you Serve Ads Via Google then there is a bad news for you specially if you live in or serve ads in below mentioned countries..
Today September 01, 2020 google issued a notice to its Google Ads customers that it will begin charging new fees for ads served in the United Kingdom, Turkey, and Austria from November 01, 2020.
The details of the fees are mentioned below and we are adding them here exactly as Google has mentioned them in the notice.
Ads served in Turkey: a 5% Regulatory Operating Cost added to your invoice or statement
Ads served in Austria: a 5% Austria DST Fee added to your invoice or statement
Ads served in the United Kingdom: a 2% UK DST Fee added to your invoice or statement
As per Law Insider Regulatory Operating Cost means costs incurred to prepare Product regulatory submissions to maintain Regulatory Approval in the U.S.
DST stands for Digital Service Tax.
At the moment these taxes are limited to above mentioned three countries only but there is a chance that Google Expands this list.