First of all check your efile status in the original return,
Open your return and go to FILE > Electronic Filing > Check Electronic Filing Status
Then when it knows you have filed the first return save it with another name so you don't mess up your original return. Go up to FILE - Save As
Then to Amend, It's under Federal Taxes Tab or Personal for H&B/Self Employed version
Other Tax Situations
Other Tax Forms
Amend a Return - Click Start or Update
