Upload HMRC CT & iXBRL Accounts File

HMRC CT & iXBRL Accounts Upload

Please take note of the following before you proceed further




  1. Accounting Year
    Please double-check the accounting year you have defined for this return. Once e-filed it cannot be changed. Duplicated accounting year returns will be rejected. The period within an accounting year must not exceed 12 calendar months. It may be shorter than 12 months, but never longer.

  2. Original E-filing or Amended E-filing
    On our given spreadsheet you must clearly state if your return is an ORIGINAL e-filing or an AMENDED e-filing. If it is original you can leave the first column blank.

  3. Documents to be E-filed
    Please tick below which documents you want to e-file. On the next page we will only allow you to upload what you have selected to e-file. With a standard e-filing you should normally have at least the CT600 and a computation, but this is not necessarily always the case.

    Accounting Documents
    Usually you should have accounts to go with the CT600. If you do not have these due to your company being dormant or ceasing operation, you must spell out the reason for the absence in the CT600.

    Computations
    Usually you should 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 in the CT600.

  4. iXBRL or PDF
    Up to April 2011 your accounts and the computation documents could be in either an iXBRL or PDF format. On and after April 2011 these two documents can only be e-filed in an iXBRL format.

    To convert your accounts and computation documents into iXBRL you need to use iXBRL software. Once have you converted the data into an iXBRL format you can upload it to our server and we will e-file it together with other documents for you to the HMRC.

    For other documents, such as CT600 and the respective supplements, you can simply put your data directly into our given spreadsheets and when you upload it to our server it will be converted to the HMRC's required XML format automatically.

  5. Troubleshooting
    If you make a mistake in your original return, or you missed out certain documents which should have been e-filed, you should do an amended return.


Document(s) to Upload File type to Upload Yes No
Accounts iXBRL
CT 600 Computations iXBRL
Company (CT 600)
(Corporation Tax Return)
 
Other Supporting documents in PDF format PDF
Supplement A
(Loans)
CSV
Supplement B
(Controlled Foriegn Companies)
CSV
Supplement C
(Group and Consortium)
CSV
Supplement D
(Insurance)
CSV
Supplement E
(Charities / CASCs)
CSV
Supplement F
(Tonnage Tax)
CSV
Supplement G
(Corporate Venturing Scheme)
CSV
Supplement H
(Cross Border Royalties)
CSV
Supplement I
(Ring Fence Trade)
CSV
Supplement J
(Disclosure of Tax Avoidance Schemes)
CSV
Note: Please ensure the XML document to be uploaded includes all the supplements

Up to April 2011 your accounts and the computation documents could be in either an iXBRL or PDF format. On and after April 2011 these two documents can only be e-filed in an iXBRL format.

Select the CT600 documents you wish to upload and click on Continue.

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