"As an expert on the U.S. tax system, I see America’s costly and time-consuming tax reporting system as a consequence of its relationship with the commercial tax preparation industry, which lobbies Congress to maintain the status quo."

https://www.marketwatch.com/story/the-irs-already-knows-how-much-tax-youll-owe-so-why-do-americans-have-to-pay-so-much-to-file-their-tax-returns-11643816470