When you amend your tax return to change your dependency to being a dependent then the IRS will know that you should have not received a stimulus payment.
Whether or not you are contacted by the IRS concerning this improper payment is not really relevant. You should return the payment that did not belong to you.
If you found a wallet on the street and it contained $1,200 in cash along with a driver's license having the name and address of the owner of the wallet, what would you do?
