For any artists expecting to receive a tax form for the earnings they've received during the fiscal year, all information for this can be found on PayPal's website here
If you are not sure whether or not to expect a 1099-k or other tax form for the upcoming tax season, PayPal has Online Resources available to address any questions you may have.
Society6 is unable to provide tax advice. Please contact PayPal's support team for more information.