America, one of the few developed nations where doing your taxes involves paying a third party to help you tell the government what it already knows. TurboTax and HR block lobby considerably to prevent the government from making the process of paying taxes free, fast, and painless for the overwhelming majority of taxpayers. https://www.propublica.org/article/filing-taxes-could-be-fre...
We can argue that the tax code should be simpler but that's a different argument.