Is faking an ID to sign up on a website illegal?

[Traputis]

So I've seen on a different website that people are offering accounts for marketplaces such as eBay. However, those accounts need to be ID verified and I was wondering how people get away with faking an ID? Is it not illegal to fake the image of an ID or passport to sign up on a marketplace? As long as you keep paying your taxes when you get paid to your real bank account, is it okay to submit a fake ID to the marketplace? I am confused. I don't want to do anything illegal but it just confuses the shit out of me.