# Capital Allowances Act 2001, Section 310: Basic rule for calculating amount of allowance


(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.

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Source: https://www.legislation.gov.uk/ukpga/2001/2/section/310 (the official version)
Page: https://openlegislation.uk/capital-allowances-act-2001/section-310
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.