Earlier quoted context omitted.
The IRS has actually run trials like this in the past. Very successful, at least for simply W2-based returns, since most people's taxable transactions get reported by companies anyway (i.e., mortgages/interest, other income, etc.) and most people use the standardized deduction. Inuit and Quicken subsequently lobbied to end those programs and even bar the IRS from running similar programs...
There was an interesting Planet Money episode about this [0]. Apparently the lobbying by Intuit is actually fairly minor compared to the opposition by Republicans. Some group of Republican legislators came together and agreed to oppose all tax increases, and also agreed to oppose many types of tax simplification. The thinking being that the more painful filing your taxes is, the more people will have a negative perce…
This is exactly the reason I do my taxes by hand on paper every year.