If you discover an error in the H&R Block tax preparation software that entitles you to a larger refund (or smaller liability), we will refund the software fees you paid to prepare that return and you may use our software to amend your return at no additional charge.Additional fees apply for tax expert support.Additional terms and restrictions apply See Guarantees for complete details. It does not provide for reimbursement of any taxes, penalties, or interest imposed by taxing authorities and does not include legal representation.