Google/YouTube taxes
https://support.google.com/youtube/answer/10391362?hl=en
Google is required to collect tax info from creators in the YouTube Partner Program (YPP). If any tax deductions apply, Google will withhold taxes on YouTube earnings from viewers in the U.S. from ad views, YouTube Premium, Super Chat, Super Stickers, and Channel Memberships.
Why Google withholds U.S. taxes
Google has a responsibility under Chapter 3 of the U.S. Internal Revenue Code to collect tax info, withhold taxes, and report to the Internal Revenue Service (the U.S. tax authority, also known as the IRS) when a YPP creator on YouTube earns royalty revenue from viewers in the U.S.