Yes. Taxes are complex enough in many situations that it incentivizes paying someone to take that complexity load. The simplest and most sure way to do this is to simplify taxes, but assuming the IRS will be able to to just do it all correctly for you seems naive to me. Depending on your tax situation, there's lots of information the IRS doesn't have (such as almost all deductions you might try). Having the IRS auto-fill forms for you seems like it's putting effort in the wrong place. If they can auto-fill forms for you, your taxes are probably pretty simple, but even then the forms may be complex enough that checking them may require most people use a tax preparer/checker of some sort. The real gains are from simplifying the taxes themselves, not just automating the form entry in the already simple cases. Making taxes simpler reduced the incentives for using a tax preparer, which is the right way to go about this.
