If you didn't file yet, revisit your personal information section and change your answer. You'll be able to claim Rebate recovery tax credit (stimulus payment). If you already filed your tax return, your the only option to amend it.
If you need to amend, make sure you got your refund or paid your taxes due from the originally filed return; you want to make sure the government doesn’t get confused with your money, so the original return needs to be all squared away before you amend.
To amend you return with TurboTax:
If you used TurboTax Online, simply log in to your account and select “Amend a return that was filed and accepted.” If you used our CD/download product, sign back into your return and select “Amend a filed return.”
