My client's son decided to do his own taxes this year, using TurboTax.  A good thought, but he didn't pick up the Recovery Rebate Credit, amongst other things.  The client has asked me to amend the return (filed in March 2020 and the refund has been received) and to bill him for my efforts.

I have prepared the Form 1040-X ($2,200 refund).  When I tried to e-file the 1040-X, the program won't allow it because it thinks the Form 1040 was not filed.

How do I get around this issue?

Thanks.

Mike Gilligan