Rates of depreciation as per Income Tax Act

Block of Assets – With effect from 1-4-1999, the terms Assets and Blocks of Assets refer to a group of assets that come within a class of assets and include:

• Buildings, machinery, plants, and furnishings are examples of tangible assets.
• Knowhow, patents, copyrights, trademarks, licences, franchises, and other business or commercial rights of a similar sort are examples of intangible assets for which the same percentage of depreciation is required.

The depreciation allowance under Section 32(1)(ii) of the Act in respect of any block of assets entitled to more than 40% shall be restricted to 40% on the written down value of such block of assets with effect from 1 April in the case of a domestic company that has exercised an option under Section 115BA of the Income-tax Act, 1961 to reduce the tax rate from 30% to 25%.

The table of depreciation rates in new Appendix I has been updated. According to the Notification, starting on April 1, 2017, the figure '40' will be substituted for higher rates (i.e. 50, 60, 80, and 100). 7 November 2016, Notification No. 103/2016, Notification No. 69/2019-Income Tax Dated 20th September, 2019, which altered the Depreciation Rate on Motor Car, has also been amended.

DEPRECIATION RATE CHART (INCOME TAX) AS OF THE ASSESSMENT YEAR 2003-2004 

Block of assets	Depreciation allowance as percentage of written down value
	AYs 2003-04 to 2005-06	AY 2006-07 to AY 2017-18	AY 2018-19  onwards
1	2	3	4
PART A
TANGIBLE ASSETS
I. BUILDING [See Notes 1 to 4 below the Table]
(1) Buildings which are used mainly for residential purposes except hotels and boarding houses	5	5	5
(2) Buildings other than those used mainly for residential purposes and not covered by sub-items (1) above and (3) below	10	10	10
(3) Buildings acquired on or after the 1st day of September, 2002 for installing machinery and plant forming part of water supply project or water treatment system and which is put to use for the purpose of business of providing infra- structure facilities under clause (i) of sub-section (4) of section 80-IA	100	100	40
(4) Purely temporary erections such as wooden structures	100	100	40
II. FURNITURE AND FITTINGS
Furniture and fittings including electrical fittings [See Note 5 below the Table]	15	10	10
III. MACHINERY AND PLANT
(1)  Machinery and plant other than those covered by sub-items (2), (3) and (8) below : [See Note 5A below the Table]	25	15	15
(2)  (i) Motor cars, other than those used in a business of running them on hire, acquired or put to use on or after the 1st day of April, 1990 except those covered under entry (ii);	20	15	15
(ii) Motor cars, other than those used in a business of running them on hire, acquired on or after the 23rd day of August, 2019 but before the 1st day of April, 2020 and is put to use before the 1st day of April, 2020.	–	–	30
(3) (i) Aeroplanes – Aeroengines	40	40	40
(ii)  (a) Motor buses, motor lorries and motor taxis used in a business of running them on hire other than those covered under entry (b).	40	30	30
(b) Motor buses, motor lorries and motor taxis used in a business of running them on hire, acquired on or after the 23rd day of August, 2019 but before the 1st day of April, 2020 and is put to use before the 1st day of April, 2020.	–	–	45
(iii) Commercial vehicle which is acquired by the assessee on or after the 1st day of October, 1998, but before the 1st day of April, 1999 and is put to use for any period before the 1st day of April, 1999 for the purposes of business or profession in accordance with the third proviso to clause (ii) of sub-section (1) of section 32 [See Note 6 below the Table]	40	40	40
(iv)  New commercial vehicle which is acquired on or after the 1st day of October, 1998, but before the 1st day of April, 1999 in replacement of condemned vehicle of over 15 years of age and is put to use for any period before the 1st day of April, 1999 for the purposes of business or profession in accordance with the third proviso to clause (ii) of sub-section (1) of section 32 [See Note 6 below the Table]	60	60	40
(v)  New commercial vehicle which is acquired on or after the 1st day of April, 1999 but before the 1st day of April, 2000 in replacement of condemned vehicle of over 15 years of age and is put to use before the 1st day of April, 2000 for the purposes of business or profession in accordance with the second proviso to clause (ii) of sub-section (1) of section 32 [See Note 6 below the Table]	60	60	40
(vi)  New commercial vehicle which is acquired on or after the 1st day of April, 2001 but before the 1st day of April, 2002 and is put to use before the 1st day of April, 2002 for the purposes of business or profession [See Note 6 below the Table]	50	50	40
(via) New commercial vehicle which is acquired on or after the 1st day of January, 2009 but before the 1st day of October, 2009 and is put to use before the 1st day of October, 2009 for the purposes of business or profession [See paragraph 6 of the Notes below this Table]	—	50	40
(vii)  Moulds used in rubber and plastic goods factories	40	30	30
(viii)  Air pollution control equipment, being—
(a) Electrostatic precipitation systems
(b) Felt-filter systems
(c) Dust collector systems	100	100	40
(d) Scrubber-counter current/venturi/packed bed/cyclonic scrubbers
(e) Ash handling system and evacuation system
(ix) Water pollution control equipment, being—
(a) Mechanical screen systems
(b) Aerated detritus chambers (including air compressor)
(c) Mechanically skimmed oil and grease removal systems
(d) Chemical feed systems and flash mixing equipment
(e) Mechanical flocculators and mechanical reactors
(f) Diffused air/mechanically aerated activated sludge systems
(g) Aerated lagoon systems	100	100	40
(h) Biofilters
(i) Methane-recovery anaerobic digester systems
(j) Air floatation systems
(k) Air/steam stripping systems
(l) Urea Hydrolysis systems
(m) Marine outfall systems
(n) Centrifuge for dewatering sludge
(o) Rotating biological contractor or bio-disc
(p) Ion exchange resin column
(q) Activated carbon column
(x) (a) Solidwaste control equipments being – caustic/ lime/ chrome /mineral /cryolite recovery systems	100	100	40
(b) Solidwaste recycling and resource recovery systems
(xi) Machinery and plant, used in semi-conductor industry covering all integrated circuits (ICs) (excluding hybrid integrated circuits) ranging from small scale integration (SSI) to large scale integration/very large scale integration (LSI/VLSI) as also discrete semi-conductor devices such as diodes, transistors, thyristors, triacs, etc., other than those covered by entries (viii), (ix) and (x) of this sub-item and sub-item (8) below	40	30	30
(xia) Life saving medical equipment, being—
(a)  D.C. Defibrillators for internal use and pace makers
(b) Haemodialysors
(c) Heart lung machine
(d) Cobalt Therapy Unit
(e) Colour Doppler
(f) SPECT Gamma Camera
(g) Vascular Angiography System including Digital subtraction Angiography
(h) Ventilator used with anaesthesia apparatus
(i) Magnetic Resonance Imaging System
(j) Surgical Laser [See Note 5B]	40	40	40
(k) Ventilators other than those used with anaesthesia
(l) Gamma knife
(m) Bone Marrow Transplant Equipment including silastic long standing intravenous catheters for chemotherapy
(n) Fibreoptic endoscopes including Paediatric resectoscope/audit resectoscope, Peritoneoscopes, Arthoscope, Microlaryngoscope, Fibreoptic Flexible Nasal Pharyngo Bronchoscope, Fibreoptic Flexible Laryngo Bronchoscope, Video Laryngo Bronchoscope and Video Oesophago Gastroscope, Stroboscope, Fibreoptic Flexible Oesophago Gastroscope
(o) Laparoscope (single incision)
(4) Containers made of glass or plastic used as re-fills	50	50	40
(5) Computers including computer software [See note 7 below the Table]	60	60	40
(6) Machinery and plant, used in weaving, processing and garment sector of textile industry, which is purchased under TUFS on or after the 1st day of April, 2001 but before the 1st day of April, 2004 and is put to use before the 1st day of April, 2004 [See Note 8 below the Table]	50	50	40
(7) Machinery and plant, acquired and installed on or after the 1st day of September, 2002 in a water supply project or a water treatment system and which is put to use for the purpose of business of providing infrastructure facility under clause (i) of sub-section (4) of section 80-IA [See Notes 4 and 9 below the Table]	100	100	40
(8) (i) Wooden parts used in artificial silk manufacturing machinery	100	100	40
(ii) Cinematograph films – bulbs of studio lights	100	100	40
(iii) Match factories – Wooden match frames	100	100	40
(iv) Mines and quarries :
(a) Tubs, winding ropes, haulage ropes and sand stowing pipes	100	100	40
(b) Safety lamps
(v) Salt works – Salt pans, reservoirs and condensers, etc., made of earthy, sandy or clayey material or any other similar material	100	100	40
(vi) Flour mills – Rollers	80	80	40
(vii) Iron and steel industry – Rolling mill rolls	80	80	40
(viii) Sugar works – Rollers	80	80	40
(ix) Energy saving devices, being—
A. Specialised boilers and furnaces:
(a)  Ignifluid/fluidized bed boilers
(b)  Flameless furnaces and continuous pusher type furnaces
(c)  Fluidized bed type heat treatment furnaces	80	80	40
(d)  High efficiency boilers (thermal efficiency higher than 75 per cent in case of coal fired and 80 per cent in case of oil/gas fired boilers)
B. Instrumentation and monitoring system for monitoring energy flows:
(a)  Automatic electrical load monitoring systems
(b)  Digital heat loss meters
(c)  Micro-processor based control systems
(d)  Infra-red thermography	80	80	40
(e)  Meters for measuring heat losses, furnace oil flow, steam flow, electric energy and power factor meters
(f)  Maximum demand indicator and clamp on power meters
(g)  Exhaust gases analyser
(h)  Fuel oil pump test bench
C. Waste heat recovery equipment:
(a)  Economisers and feed water heaters
(b)  Recuperators and air pre-heaters	80	80	40
(c)  Heat pumps
(d)  Thermal energy wheel for high and low temperature waste heat recovery
D. Co-generation systems:
(a)  Back pressure pass out, controlled extraction, extraction-cum-condensing turbines for co-generation along with pressure boilers	80	80	40
(b)  Vapour absorption refrigeration systems
(c)  Organic rankine cycle power systems
(d)  Low inlet pressure small steam turbines
E. Electrical equipment:
(a)  Shunt capacitors and synchronous condenser systems
(b)  Automatic power cut off devices (relays) mounted on individual motors
(c)  Automatic voltage controller
(d)  Power factor controller for AC motors
(e)  Solid state devices for controlling motor speeds
(f)  Thermally energy-efficient stenters (which require 800 or less kilocalories of heat to evaporate one kilogram of water)
(g)  Series compensation equipment
(h)  Flexible AC Transmission (FACT) devices – Thyristor controlled series compensation equipment	80	80	40
(i)  Time of Day (ToD) energy meters
(j)  Equipment to establish transmission highways for National Power Grid to facilitate transfer of surplus power of one region to the deficient region
(k)  Remote terminal units/intelligent electronic devices, computer hardware/software, router/bridges, other required equipment and associated communication systems for supervisory control and data acquisition systems, energy management systems and distribution management systems for power transmission systems
(l)  Special energy meters for Availability Based Tariff (ABT)
F. Burners:
(a)  0 to 10 per cent excess air burners
(b)  Emulsion burners	80	80	40
(c) Burners using air with high pre-heat temperature (above 300°C)
G. Other equipment:
(a) Wet air oxidation equipment for recovery of chemicals and heat
(b) Mechanical vapour recompressors
(c) Thin film evaporators
(d) Automatic micro-processor based load demand controllers	80	80	40
(e) Coal based producer gas plants
(f) Fluid drives and fluid couplings
(g) Turbo charges/super-charges
(h)  Sealed radiation sources for radiation processing plants
(x) Gas cylinders including valves and regulators	80	60	40
(xi Glass manufacturing concerns – Direct fire glass melting furnaces	80	60	40
(xii) Mineral oil concerns:
(a)  Plant used in field operations (above ground) distribution – Returnable packages
(b) Plant used in field operations (below ground), but not including kerbside pumps including underground tanks and fittings used in field operations (distribution) by mineral oil concerns	80	60	40
(c) Oil wells not covered in clauses (a) and (b) (with effect from the assessment year 2016-17)	–	15	15
(xiii) Renewal energy devices being—
(a) Flat plate solar collectors
(b) Concentrating and pipe type solar collectors
(c) Solar cookers
(d) Solar water heaters and systems
(e) Air/gas/fluid heating systems
(f) Solar crop driers and systems
(g) Solar refrigeration, cold storages and air-conditioning systems
(h) Solar steels and desalination systems
(i) Solar power generating systems
(j) Solar pumps based on solar-thermal and solar-photovoltaic conversion
(k) Solar-photovoltaic modules and panels for water pumping and other applications	80	80	40
(l) Windmills and any specially designed devices which run on wind-mills installed on or before March 31, 2012
(m) Any special devices including electric generators and pumps running on wind energy installed on or before March 31, 2012
(n) Biogas plant and biogas engines
(o) Electrically operated vehicles including battery powered or fuel-cell powered vehicles
(p) Agricultural and municipal waste conversion devices producing energy
(q) Equipment for utilising ocean waste and thermal energy
(r) Machinery and plant used in the manufacture of any of the above sub-items
(9) (i) Books owned by assessees carrying on a profession—
(a) Books, being annual publications	100	100	40
(b) Books, other than those covered by entry (a) above	60	60	40
(ii) Books owned by assessees carrying on business in running lending libraries	100	100	40
IV. SHIPS
(1) Ocean-going ships including dredgers, tugs, barges, survey launches and other similar ships used mainly for dredging purposes and fishing vessels with wooden hull	25	20	20
(2) Vessels ordinarily operating on inland waters, not covered by sub-item (3) below	25	20	20
(3) Vessels ordinarily operating on inland waters being speed boats [See Note 10 below the Table]	25	20	20
PART B
INTANGIBLE ASSETS
Know-how, patents, copyrights, trademarks, licences, franchises or any other business or commercial rights of similar nature not being goodwill of businesss of profession	25	25	25

1. “Buildings” include roads, bridges, culverts, wells and tubewells.
2. A building shall be deemed to be a building used mainly for residential purposes, if the built-up floor area thereof used for residential purposes is not less than sixty-six and two-third per cent of its total built-up floor area and shall include any such building in the factory premises.
3. In respect of any structure or work by way of renovation or improvement in or in relation to a building referred to in Explanation 1 of clause (ii) of sub-section (1) of section 32, the percentage to be applied will be the percentage specified against sub-item (1) or (2) of item I as may be appropriate to the class of building in or in relation to which the renovation or improvement is effected. Where the structure is constructed or the work is done by way of extension of any such building, the percentage to be applied would be such percentage as would be appropriate, as if the structure or work constituted a separate building.
4. Water treatment system includes system for desalination, demineralisation and purification of water.
5. “Electrical fittings” include electrical wiring, switches, sockets, other fittings and fans, etc.
5A. Rate of depreciation shall be 40% if conditions of Rule 5(2) are satisfied.
5B. Applicable from the Assessment year 2004-05.
6. “Commercial vehicle” means “heavy goods vehicle”, “heavy passenger motor vehicle”, “light motor vehicle”, “medium goods vehicle” and “medium passenger motor vehicle” but does not include “maxi-cab”, “motor-cab”, “tractor” and “road-roller”. The expressions “heavy goods vehicle”, “heavy passenger motor vehicle”, “light motor vehicle”, “medium goods vehicle”, “medium passenger motor vehicle”, “maxi-cab”, “motor-cab”, “tractor” and “road-roller” shall have the meanings respectively as assigned to them in section 2 of the Motor Vehicles Act, 1988 (59 of 1988).
7. “Computer software” means any computer programme recorded on any disc, tape, perforated media or other information storage device.
8. “TUFS” means Technology Upgradation Fund Scheme announced by the Government of India in the form of a Resolution of the Ministry of Textiles vide No. 28/1/99-CTI of 31-3-1999.
9. Machinery and plant includes pipes needed for delivery from the source of supply of raw water to the plant and from the plant to the storage facility.
10. “Speed boat” means a motor boat driven by a high speed internal combustion engine capable of propelling the boat at a speed exceeding 24 kilometers per hour in still water and so designed that when running at a speed, it will plane, i.e., its bow will rise from the water.

Depreciation rates for power generating units (applicable from the assessment year 1998-99

Class of assets	Depreciation allowance as percentage of actual cost
(a) Plant and Machinery in generating stations including plant foundations :—
(i) Hydro-electric	3.4
(ii) Steam electric NHRS & Waste heat recovery Boilers/plants	7.84
(iii) Diesel electric and Gas plant	8.24
(b) Cooling towers and circulating water systems	7.84
(c) Hydraulic works forming part of Hydro-electric system including :—
(i)  Dams, spillways weirs, canals, reinforced concrete flumes and syphons	1.95
(ii) Reinforced concrete pipelines and surge tanks steel pipelines, sluice gates, steel surge (tanks), hydraulic control valves and other hydraulic works.	3.4
(d) Building and civil engineering works of permanent character, not mentioned above
(i) Office & showrooms	3.02
(ii) Containing Thermo-electric generating plant	7.84
(iii) Containing Hydro-electric generating plant	3.4
(iv)  Temporary erection such as wooden structures	33.4
(v) Roads other than Kutcha roads	3.02
(vi) Others	3.02
(e) Transformers, transformer (Kiosk) sub-station equipment & other fixed apparatus (including plant foundations)
(i) Transformers (including foundations) having a rating of 100 kilo volt amperes and over	7.81
(ii) Others	7.84
(f) Switchgear including cable connections	7.84
(g) Lightning arrestor :
(i) Station type	7.84
(ii) Pole type	12.77
(iii) Synchronous condenser	5.27
(h) Batteries	33.4
(i) Underground cable including joint boxes and disconnectioned boxes	5.27
(ii) Cable duct system	3.02
(i) Overhead lines including supports :
(i) Lines on fabricated steel operating at nominal voltages higher than 66 kilo volts	5.27
(ii) Lines on steel supports operating at nominal voltages higher than 13.2 kilo volts but not exceeding 66 kilo volts	7.84
(iii) Lines on steel or reinforced concrete supports	7.84
(iv) Lines on treated wood supports	7.84
(j) Meters	12.77
(k) Self-propelled vehicles	33.40
(l) Air-conditioning plants :
(i) Static	12.77
(ii) Portable	33.40
(m) (i) Office furniture and fittings	12.77
(ii) Office equipments	12.77
(iii) Internal wiring including fittings and apparatus	12.77
(iv) Street light fittings	12.77
(n) Apparatus let on hire
(i) Other than motors	33.4
(ii) Motors	12.77
(o) Communication equipment :
(i) Radio and high frequency carrier system	12.77
(ii) Telephone lines and telephones	12.77
(p) Any other assets not covered above	7.69