According to the article linked in the first paragraph (in Turkish) they are required to pay taxes for the ads of Turkish companies YouTube shows to its Turkish

According to the article linked in the first paragraph (in Turkish) they are required to pay taxes for the ads of Turkish companies YouTube shows to its Turkish visitors. EDIT: It is stated in the original article as well: > As a consequence of YouTube’s popularity despite the ban, the video portal has been attracting advertisement from Turkish companies, a development that triggered the tax probe that Transportation Minister Yildirim was referring to.