Chapter 5: Writing-down allowances
Section 507: Entitlement to writing-down allowance
1802.This section is based on part of section 85(1) of CAA 1990. It sets out the conditions needed for a person to claim a writing-down allowance.
1803.Subsection (2) allows a claim for less than the full writing-down allowance. See Change 38 in Annex 1.
Section 508: Basic rule for calculating amount of allowance
1804.This section is based on part of section 85(2) of CAA 1990. It gives the rate at which writing-down allowances are available if there has been no change under the following section.
Section 509: Calculation of allowance after sale of relevant interest
1805.This section is based on part of section 85(3) of CAA 1990. It gives a formula to work out the new rate at which writing-down allowances are available following a sale of the relevant interest on which a balancing adjustment falls to be made.
1806.Subsection (2) refers to the 25-year period beginning with the day on which the “dwelling-house” was first used in the definition of “B”. But section 85(3) of CAA 1990 refers to the period beginning with the date on which the “building” was first used. Section 85(3) is not consistent with section 87(2) of CAA 1990 which limits the period during which balancing adjustments can be made by reference to first use of the dwelling-house. This section is rewritten on the basis that a mistake was made in section 85(3)’s reference to first use of the building. See Note 66 in Annex 2.
Section 510: Allowance limited to residue of qualifying expenditure attributable to dwelling-house
1807.This section is based on section 85(4) of CAA 1990. It stops allowances from exceeding the qualifying expenditure in respect of which they are given.
Section 511: Qualifying expenditure attributable to dwelling-house
1808.This section is based on section 96(1) and (2) of CAA 1990. This Chapter calculates allowances by reference to the qualifying expenditure attributable to the dwelling-house. This section sets out how to determine the qualifying expenditure attributable to a dwelling-house starting with the qualifying expenditure attributable to the building (found from Chapter 3). A limit is set on the qualifying expenditure attributable to a dwelling-house.
Section 512: Residue of qualifying expenditure attributable to dwelling-house
1809.This section is partly based on section 90(1) of CAA 1990. It gives a signpost to where details on the residue, which is referred to in this Chapter, can be found.
