Version Matrix


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CT Calculations is a library that contains the domain needed to create a Corporations Tax return for HMRC. This includes implementations of Boxes and calculations required to produce a CT600, including CT600J, CT600A and Computations.

At the moment this library supports a subset of Boxes and calculations but we are open to supporting the full set of available boxes.

Download ct-calculations

resolvers += Resolver.bintrayRepo("hmrc", "releases")

libraryDependencies += "" %% "ct-calculations" % "x.x.x"

Future Enhancements

  • Support for V3 of CT600
  • Support for Accounts Boxes


This code is open source software licensed under the Apache 2.0 License.