Get your taxes done using TurboTax

Amend will not be available in TurboTax until late in March. 

When Amend is Available in TurboTax, you will click the Amend button and then go through the amend pages.  It is get to a question about whether you received the stimulus payments.  

You will answer that you did not receive the second payment and then that payment will be added to your refund and sent to you by the IRS.

 

You generally must file an amended return within three years of the date you filed the original return or within two years after the date you paid the tax, whichever is later.