H&R Block and Intuit Lobbying Against Simpler Tax Filing (2017)
Planet money had a podcast on this subject. 
<a href="https://www.npr.org/sections/money/2017/03/22/521132960/episode-760-tax-hero" rel="nofollow">https://www.npr.org/sections/money/2017/03/22/521132960/epis...</a>