The real problem here is that Intuit and other companies lobby millions to maintain their status quo. The right thing to do would be to put every single dollar spent on these corporations into a government program that develops this kind of software or even does the taxes for you (this already exists in many countries in the EU.) Instead, in the US, you pay for Turbotax, they make a profit out if it, and then they use part of the money to lobby and keep the tax code and system rigged for their own benefit. I don't know if open source software is the solution here -- and as far as I know, the tax forms change every year, so it will be forever playing catch-up -- but it seems to be missing the point entirely.