NFL's Non-Profit Status Questioned: At NFL headquarters on Park Avenue in Manhattan, the daily business is funded by all 32 pro teams which collectively pay more than $250 million in annual "membership dues." All of that revenue received by the league office, more than a half billion dollars since 2010, is not taxed because the league has been a non-profit trade association since the 1940s. Sen. Tom Coburn (R-Okla.) filed a bill in September to revoke the tax exemption, asserting that working folks are subsidizing a special break for a sports league. More than 280,000 have signed a Change.ore petition asking Congress to remove the NFL's non-profit status. "This doesn't pass the basic fairness test," said the petition's author, Lynda Woolard, a fan of the New Orleans Saints.