They have to send you a 1099-K like all other payment processors... if you made over $20,000 in gross sales in the year. I got one from PayPal in 2011.
https://cms.paypal.com/us/cgi-bin/marketingweb?cmd=_render-c...
https://cms.paypal.com/us/cgi-bin/marketingweb?cmd=_render-c...