In the US, the Republican Party has a history of intentionally pushing for cumbersome tax filing as part of encouraging people to hate the idea of taxes in general.
Is it really necessary to "encourage" me to dislike taxes? Is not the money leaving my pocket sufficient?
I've also heard Republicans claiming that IRS-provided tax bills/refunds is equivalent to a tax. I guess the implication is that the government is going to intentionally charge you more.
Having to use TurboTax or someting like it is equivalent to a tax, but it's paid to a corporation instead of the government. If I had to choose between my money going to the government and Intuit, I'd choose the government.
Pretty sure it's just run-of-the-mill lobbying and corruption unfortunately. A typical "think of the jobs!" type of thing.
See e.g. http://reason.org/files/ba148cd5babdda39f9ebb43b336b01d4.pdf