State tax filing

But how do we "tell" TT that it is a 5 year property? Select "appliances, carpeting..."?
I'm seeing conflicting info: one place it says 5 y ear property, others it says 27.5.  Some say, yes, take the credit, than depreciate 85%, other says, credit not possible...

No idea how/where to get the correct information. IRS pubs not really helpful so far, either.