I bet that they can get it correct for 90% of the taxpayers. They certainly could do it for me, using sensible defaults. (e.g. mortgage interest is reported, r

I bet that they can get it correct for 90% of the taxpayers. They certainly could do it for me, using sensible defaults. (e.g. mortgage interest is reported, real estate taxes are reported, local sales tax is a calculation in most cases). Where they're not going to get it right is if you've got a Schedule C, since none of that is reported elsewhere.