They don't lobby to make the tax code itself more complex, they just lobby to be the only providers of such services: https://www.propublica.org/article/inside-

They don't lobby to make the tax code itself more complex, they just lobby to be the only providers of such services: https://www.propublica.org/article/inside-turbotax-20-year-fight-to-stop-americans-from-filing-their-taxes-for-free https://www.propublica.org/article/inside-turbotax-20-year-f...