# Capital Allowances Act 2001, Section 508: Basic rule for calculating amount of allowance


(1) The basic rule is that the writing-down allowance for a chargeable period is 4% of the qualifying expenditure attributable to the dwelling-house or (as the case may be) each dwelling-house falling within section 507(1)(d).
(2) The allowance is proportionately increased or reduced if the chargeable period is more or less than a year.
(3) The basic rule does not apply if section 509 applies.

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Source: https://www.legislation.gov.uk/ukpga/2001/2/section/508 (the official version)
Page: https://openlegislation.uk/capital-allowances-act-2001/section-508
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.