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HMRC internal manual

COTAX Manual

Background: features of COTAX: COSH

COTAX System Help (COSH) provides detailed instructions on the use of functions in the COTAX system.

COSH is available when you are using most COTAX functions. It provides specific help at each of the following levels.

  • Function.
  • Screen.
  • Field.
  • Error message.

You can access COSH by using the [Help] button that is available on each screen, or pressing the F1 key when you are using COTAX. Help is displayed for the screen you are on and there is access to Function, Field and Error message help through the tree on the left hand side bar.