Form CT600/CT200 includes a computation of the amount of tax
chargeable.
The notice to deliver (CT603/CT203) also requires the company
to provide 'computations showing how entries on the return have
been calculated from relevant figures in the accounts'. The
computations can be in whatever format the company finds most
appropriate for its business, but they must be sufficient to link
the accounts with entries on the return.
Computations may include a detailed trading and profit and
loss account along with any other analyses and explanations
required for that purpose.
FA98/SCH18/PARA7 requires for CTSA accounting periods (ending
on or after 1 July 1999) that companies must also include in the
return an SA of the amount of tax payable for the period for which
it is making the return, see
CTM93110.
It must make the SA on the basis of the information in the
return and after taking into account any reliefs or allowances:
or
You must regard a company tax return received as a return for an accounting period, even if it is not an accounting period, if:
and