# Capital Allowances Act 2001, Paragraph 96: Calculation of writing-down allowances


(1) The basic rule for calculating a writing-down allowance for an item of qualifying expenditure is—
ExCWwhere—
E is the amount of the qualifying expenditure;
C is the length of the part of the chargeable period falling within the writing-down period;
W is the length of the writing-down period.
(2) The basic rule is subject to the rules about—
(a) cessation of writing-down allowances (paragraph 97), and
(b) reduced writing-down allowances (paragraph 98).

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Source: https://www.legislation.gov.uk/ukpga/2001/2/schedule/3/paragraph/96 (the official version)
Page: https://openlegislation.uk/capital-allowances-act-2001/schedule-3/paragraph-96
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.