Check your Asset Entry to be sure it is correct.
Click this link for more info on Depreciation Not Calculating.
A residential rental property has a MACRS depreciation of 27.5 years.
This article give info on Depreciating Business Assets for other types of assets.
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Thanks for the reply! I was able to pull up the exact details of previous returns by pretending I needed to amend a return. Hopefully TurboTax will transfer information like that over automatically so I don't have to do that for the remaining 27.5 years of depreciation...