Depreciation Factor Table - Industrial and Commercial Equipment

2025 Schedule of Percentages Applied to Historical Costs in Estimating Value of Industrial and Commercial Equipment

Each depreciation percentage listed below is the result of multiplying an equipment index factor by a percent good factor. When the depreciation percentage is applied to the historical cost, it concurrently trends the historical cost to an estimate of replacement cost new and depreciates it to arrive at an estimate of present value. Any deviation from this table for unusual functional or economic obsolescence, etc., should be documented in compliance with Property Tax Rule 6 (F).

Year	Commercial - C25	Commercial - C30	Commercial - C40	Industrial - I40	Industrial - I25	Industrial - I30
2024	97	98	99	99	97	98
2023	96	97	99	100	97	98
2022	95	97	100	105	99	102
2021	106	109	113	115	108	111
2020	112	117	122	123	113	118
2019	108	114	121	123	110	116
2018	108	115	123	124	109	116
2017	108	116	126	125	107	115
2016	105	115	125	124	104	114
2015	101	111	124	124	101	111
2014	97	109	122	122	97	109
2013	94	106	122	122	94	106
2012	89	104	120	120	89	104
2011	88	103	122	120	86	101
2010	85	102	122	120	84	100
2009	80	97	119	117	79	96
2008	76	95	120	117	74	92
2007	74	95	121	118	72	93
2006	72	95	124	119	69	91
2005	70	93	125	119	66	88
2004	69	94	130	120	63	86
2003	65	93	130	121	60	86
2002	60	88	128	117	55	81
2001	54	82	127	116	50	75
2000	51	79	124	113	46	72
1999	48	75	122	110	43	67
1998	43	70	118	107	39	64
1997	40	65	115	105	36	59
1996	36	61	112	102	33	56
1995	32	58	110	100	30	53
1994	31	56	107	98	29	51
1993	27	53	108	98	24	48
1992	24	49	103	93	22	45
1991	22	45	102	92	20	41
1990		44	97	88	18	40
1989		42	97	89		39
1988		39	97	88		36
1987		38	95	87		35
1986		35	91	84		32
1985		33	87	80		30

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