If you e-filed your amended return and it was transmitted via e-file and accepted you do not have to mail a copy of your amended return to the IRS.
If you are unable to e-file your amended return (i.e. prior return) you will mail it to the IRS. Click here for the filing addresses to use.
Your Filing Instructions should have printed with your printed copies of your tax return telling you how to mail in your return.
Please feel free to come back to TurboTax Community with additional information or questions or click here for help in contacting Turbo Tax Support.
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