The 1040 Free Tax Return Guarantee:
If the 1040 Free Tax Return online tax program makes a calculation error in the preparation of your tax return, we will pay for penalties and interest assessed by the IRS, resulting from the error. 1040 Free Return will not pay any additional taxes incurred, because of the error.
Your use of the 1040 Free Tax Return Services is governed by the 1040 Free Tax Return Terms of Use, which you agree to at the time you register with 1040 Free Tax Return Service.
