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HMRC internal manual

COTAX Manual

HM Revenue & Customs
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CT Pay and File: claims / reliefs: ACT: clerical interest indicator (Action Guide)

To check if the Clerical Interest Indicator (CII (Word 32KB)) is set or to set it manually, consider steps 1 - 2 below.

1. Before you make or amend the assessment(s), use Function DAPD (Display AP Details) to check if the CII is set against the AP.
2. If CII is not set, use Function MAPS (Maintain AP Signals) to:
  * set the Refer For Instruction (RFI (Word 31KB)) signal to ‘Y’ for the AP
  * set the CII to ‘Y’ for the AP.
  Note: Once an interest charge has been raised you cannot unset these signals.