How to verify 2021 return was filed?

[hillch]

My mother has dementia and does not remember if she filed her 2021 tax return.  It is possible she filed, but we do not know.   I have a power of attorney, as such can act for her.

How do I determine if she filed her 2021 tax return.

If I do need to file her taxes, I have Turbo Tax deluxe 2021 installed on my home computer.  Can I use that to file her 2021 taxes?  As her power of attorney, can I sign the the form?

[KatrinaLO]

You may need to contact customer service directly for assistance. Please see the following information here for more details.