The Fire Sprinkler Incentive Act of 2010 The Fire Sprinkler Incentive Act of 2010 would amend the 1986 Internal Revenue Code to classify fire sprinkler retrofits as a five year property for purposes of depreciation. Presently, a fire sprinkler retrofit in a commercial building is depreciated over 39 years and a residential building over 27 and one-half years. This archaic depreciation schedule provides no economic incentive for the retrofitting of fire sprinklers in the high inventory of critical occupancies across America. Passage of the Fire Sprinkler Incentive Act would eliminate this economic roadblock by providing for a more rapid recovery of cost and serve greatly to reduce the tremendous annual economic and human losses that fire in the US inflicts on the national econ