
Chapter 6: Capital allowances – plant and machinery
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Capital allowances for unincorporated businesses
The treatment of private use assets
Short periods of account
Long periods of account
8 Capital allowances for unincorporated businesses
8.1 The treatment of private use assets
Full capital allowances are available to a company, even if there is an element of
private use of an asset by a director or employee. The benefit of private use will be
assessed on the individual as a benefit of employment; but it is irrelevant for
calculating the capital allowances available to the company.
However, as regards an unincorporated business, where any business asset is used
partly for business use and partly for private use by the owner, a separate record of
that asset must be kept. This is because capital allowances are only available on the
business proportion of the expenditure.
The most common example of a private use asset is a car used by the owner of the
business.
(You should refer to the Proforma capital allowances computation when reading the
following rules.)
(1) WDA on private use assets. The WDA on private use assets is calculated in
the normal way on a reducing balance method (or restricted to a maximum of
£3,000 if an expensive car). The WDA is deducted from the tax written down
value in the appropriate private use asset column in the proforma. However,
only the business proportion of this WDA can be claimed as a tax deduction
and entered in the total allowances column in the proforma.
(2) Disposal of private use assets. On the disposal of a private use asset, a
balancing adjustment is calculated in the normal way. However, in the case of
assets with a private use element, only the business proportion of the BA or
BC is entered in the total allowances column in the proforma.
(3) Annual investment allowance (AIA) and First year allowance (FYA) on
private use assets. If a private use asset is purchased in the accounting period
and the AIA (and/or a FYA) is available, the AIA (and/or FYA) is calculated
in the normal way and deducted from the cost in the appropriate private use
asset column in the proforma. However, only the business proportion of the
AIA (and/or FYA) calculated can actually be claimed and entered in the total
allowances column.
These rules only apply to assets with an element of private use by the owner.
Private use by an employee of the business is irrelevant. The assets are treated as
normal additions and disposals and allowances are available in full.