• Filing FY2012 Corporation Tax Returns (period ending on or after 1st April 2012)
  
  If your CT600 return period ends after 31 March 2012, you will not be able to file your return yet. HMRC have not yet updated their online systems with the FY2012 rates and because of the mandation of online iXBRL filing, you cannot submit the return by post.
  
  HMRC are expected to update the rates for the new FY in or around July 2012 after which, you will be able to file your return online.

We will shortly be updating this section with any issues currently affecting users of the TaxCalc iXBRL converter and any issues encountered when using third party Accounts Production software.