Can I show the cost of my mother's home care on my tax return?

Also, if trying to deduct as medical, then the contract with the agency should be as medical and not as companion/ADL level care. I had Visiting Angels for 9 months, but it was just to be a companion, help with cooking and housekeeping, no medical stuff - she was not allowed to give my mother any medication, or anything like that.

#4 She must be claimed as your dependent.

If she is not your dependent and files her own return: NO
If she IS your dependent, see what Llamalover wrote.

#1 You must file an itemized return.
#2 It must be filed under all of your medical expenses, including dental.
#3 Medical expenses must be over 10% of AGI.

My husband is under hospice care in our home, with 3 to 5 visits a week. It's all paid for by Medicare. We never see a bill. I don't know how that was set up and managed, but there's no way we could afford it.

You would need to contact a CPA or something who does tax returns on a regular basis. Are you declaring Mom as a "dependent" on your return?