Contributor: Do I Need to Sign a Legality Form of Sorts?

When I signed up to be a Contributor on another site and found out that I'd have to (if I remember) sign a form and comply with the US law (something to do with reporting the legal offices in USA how much you've earned from selling photos/videos before getting taxed) I got scared and requested the site to cancel my account because I didn't want to have anything to do with the legality of things (especially when I'm based in the UK).

Is this the same for Adobe Stock Contributor?