COM130040 - Returns / notices: notices and returns: computations

CT return forms, CT600 for a CTSA AP and CT200 for a CT Pay and File AP, include calculations of the amount of tax chargeable.

The company must also provide computations linking the entries in the return to the figures in the accounts, where it is not readily apparent. Online filed computations must be in iXBRL (Word 28KB) (inline Extensible Business Reporting Language) format for APs ending after 31 March 2010. The computations normally include a detailed profit and loss account.

Companies may submit tax computations rounded to the nearest £1,000 provided their turnover exceeds certain limits. For more information see Business Income Manual (BIM31047).

No rounding should take place on the return form itself, or in any arithmetic that precedes the entries made on that form.

For a list of forms relevant to this subject, see COM130011.