Accelerated rates of depreciation

You use the rate that corresponds to the effective life of the item of plant. The following tables show the appropriate rates.

For most general items of plant the rates are as follows

Effective life in years	Prime cost rate %	Diminishing value rate %
Less than 3	100	-
3 to less than 5	40	60
5 to less than 6 2/3	27	40
6 2/3 to less than 10	20	30
10 to less than 13	17	25
13 to less than 30	13	20
30 or more	7	10

For most cars and motor cycles the following rates apply

Effective life in years	Prime cost rate %	Diminishing value rate %
Less than 3	100	-
3 to less than 5	33	50
5 to less than 6 2/3	20	30
6 2/3 to less than 10	15	22.5
10 to less than 13	10	15
13 to less than 20	8	11.25
20 to less than 40	5	7.5
40 or more	3	3.75

For employees' amenities, special minimum rates of 33% prime cost or 50% diminishing value apply. Employees' amenities means property used mainly to provide clothing cupboards, first aid, rest-room or recreational facilities, and meals or facilities for meals, for certain employees and their children.