It does seem with a name like "math error" that it would be something TurboTax could catch, but since it also can include unreported income or data that simply doesn't match the IRS database, it cannot.
TurboTax and the IRS do not have two-way communication about the data in your return to allow TurboTax to verify it. The only communication that comes back to TurboTax from the IRS is acceptance or rejection of your return. That's it. Once your return is accepted everything else takes place at the IRS.
