Part 3

Industrial buildings allowances
Chapter 6

Writing-down allowances

Basic rule for calculating amount of allowance
310
1
The basic rule is that the writing-down allowance for a chargeable period is—
a
in the case of qualifying enterprise zone expenditure, 25% of the expenditure, and
b
in the case of other qualifying expenditure, 4% of the expenditure.
2
The allowance is proportionately increased or reduced if the chargeable period is more or less than a year.
3
This basic rule does not apply if section 311 applies.
Pt. 3 (ss. 271-360) modified (prosp.) by Proceeds of Crime Act 2002 (c. 29), ss. 448, 458(1), Sch. 10 paras. 18, 21