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HMRC internal manual

COTAX Manual

Assessing: assessing work lists: functions

The table below tells you the function or functions to use in particular situations.

For details of how to access any of the COTAX functions, select Index of Functions on the left of the screen.

Situation Function
  • amend the AP record
  • make the company dormant or exempt. MAPD (Maintain AP Dates)  
      To set or unset the NPR signal. MPEN (Maintain Penalty Signals)
      To prepare or amend a penalty determination. PPEN (Prepare Penalty Determination)
      To do the following for a CTSA AP.  
  • Record or amend a self assessment or discovery assessment.
  • Prepare a revenue determination, reduce it to nil or reinstate it. RAMA (Record / Amend Assessment)  
      To unlog a return. URTN (Unlog Return)