You will need to amend your return. Since your return has been accepted, wait until your return has been processed and you receive your refund or conformation that any tax due has been paid. (If you file an amended return while you first return is being processed it can cause extended delays for both returns if two returns are in the system at the same time).
Your mom will need to paper file her return by mail because her return will automatically be rejected saying her dependent has already been claimed or used as a primary tax payer on a return. This article will give you instruction on how to print and mail your return.
See this TurboTax FAQ for help with amending:
How do I amend my 2019 TurboTax Online return?
You can check the status of your amended return here but allow 3 weeks after filing for it to show up:
Where's my amended return?
Amended returns can only be mailed - allow 8-12 weeks for processing.
You will need to amend your return. Since your return has been accepted, wait until your return has been processed and you receive your refund or conformation that any tax due has been paid. (If you file an amended return while you first return is being processed it can cause extended delays for both returns if two returns are in the system at the same time).
Your mom will need to paper file her return by mail because her return will automatically be rejected saying her dependent has already been claimed or used as a primary tax payer on a return. This article will give you instruction on how to print and mail your return.
See this TurboTax FAQ for help with amending:
How do I amend my 2019 TurboTax Online return?
You can check the status of your amended return here but allow 3 weeks after filing for it to show up:
Where's my amended return?
Amended returns can only be mailed - allow 8-12 weeks for processing.
I don't need to amend I just need to change my dependent on my 2019 tax return that has been rejected because somebody has already filed that dependent
Can I simply change the dependent to no dependents on my e-file 2019 tax return online
If you already have completed the filing you will need to complete an amended return. To do this, please see the below: