Bitcoin Magazine Payjoin Foundation Gains 501(c)(3) Status, Enabling Tax-Deductible Donations for Bitcoin Privacy Development Payjoin Foundation, the nonprofit behind the Payjoin Dev Kit, has secured 501(c)(3) status from the IRS, making U.S. donations tax-deductible and accelerating development of privacy-enhancing Bitcoin protocols. Payjoin Foundation Gains 501(c)(3) Status, Enabling Tax-Deductible Donations for Bitcoin Privacy Development Juan Galt.