I can't imagine how horrible a single captive solution from the IRS would be compared to one spawned by the competitive marketplace.
Now why our tax code needs to be so complex that it requires software like Turbo Tax is certainly a fair question.
Now why our tax code needs to be so complex that it requires software like Turbo Tax is certainly a fair question.
I see literally no reason to think the IRS would do a worse job of it than the commercial services.
But regardless of that, there's no reason why the IRS couldn't provide services alongside the commercial services. It's not an either-or.