Computations Download

Download Computations


Please note: We do not provide Computation spreadsheets for you to download and fill in.


You need to attach a PDF / iXBRL document. Normally you will have computations to go with the CT 600. If you do not have these due to your company being dormant or ceasing operation, you must spell out the reason for the absence of the accounts in the CT600.


Up until April your accounts and the computation documents could be in either an iXBRL or PDF format. On and after April these two documents can only be e-filed in an iXBRL format.


Currently, we do not convert your accounts documents (Excel spreadsheet) to a PDF or iXBRL format. You need to use iXBRL software to do this. When you have converted the data into an iXBRL format you can upload it to our server and we will e-file it for you, together with other documents, to the HMRC.


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