Why hasn't a non-profit build this before? If Intuit can build a system and charge for it, it should be entirely possible to build it as open source, software,

Why hasn't a non-profit build this before? If Intuit can build a system and charge for it, it should be entirely possible to build it as open source, software, and it's the kind of think that some non-profits would probably go for. THe IRS will have a slightly easier time building a system like this, as they can pre-fill some of the data that they already have, but it should still be possible to at least match Intuit here. It feels like this is an area where competition would be a good thing. The IRS's system might be good or it might be bad. If the job was done by NGOs, you could have multiple systems, all learning from each other's successes and failures, and users would choose the one that is the most intuitive. Maybe a better idea would be to give taxpayer data to non-profits (after user authentication and consent, of course.)