Parent passed away with unpaid taxes
When i was cleaning out my parents' home I found several letters from the IRS stating that they owed back taxes from several years ago.
I'm not sure if my dad filed and didn't pay, filed late and didn't pay, or... his paperwork was a hot mess.
Over time it looks like that the interest on the amount has increased by a huge amount.
Mom has alzheimer's and isn't able to help, but i do have poa.
How do I go about taking care of this?