Please state what tax year return you are amending. A current year 2017 return can be amended online.
If it's a prior year, and if you can't use the amend software for Windows or MAC, then an additional option for a prior year is to download Form 1040X and the 1040X instructions for an amended return at the IRS website and prepare the amended return by hand.
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/forms-instructions">https://www.irs.gov/forms-instructions</a>
