Thanks to tax preparation software, more of us are making fewer mistakes on our annual tax returns. But still, just one slip in entering information on your computer could end up costing you, either in the form of a larger tax bill or a smaller refund.
And even if a mistake, either on your computer or paper forms, doesn't cost you cash, it could delay the receipt of any refund you're expecting.
Tax changes also complicate the annual tax-filing exercise. For the 2015 tax year, reporting and filing requirements prompted by the Affordable Care Act will no doubt cause problems for taxpayers, tax professionals and the IRS.