Carpet Depreciation in a Rental Property

[Tracy Sharpe]

I have a rental house that is 10 years old. The carpet is builders grade carpet that is also 10 years old. Since the carpet is 10 years old, would the depreciation factor be so low that it wouldn't be worth charging a tenant? 

For example, a 14 x 14 carpet requires replacement due to tenant's dog urinating on the carpet. It cost me $198.00 to replace that carpeted area. What amount, if any, should a tenant be charged?