COM82010 - Interest: interest objections and amendments: why an interest charge may be incorrect

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A late payment interest charge may be incorrect for one or more of the following reasons.

Where the clerical interest indicator (CII) is set to 'N':

  • the EDP (Effective Date of Payment0 of one or more payment type credits is incorrect
  • a payment type posting has been incorrectly allocated

Where the Clerical Interest Indicator is set to 'Y':

  • the EDP of one or more payment type credits is incorrect
  • a payment type posting has been incorrectly allocated
  • the underlying tax has been reduced
  • carry-back of DTR (Double Taxation Relief) or losses is involved
  • relief has been granted under Section 458 Corporation Tax Act 2010

A debit interest charge may be incorrect for one or more of the following reasons.

Where the credit / debit interest indicator (CDII) is set to ‘N’:

  • the EDP of one or more payment type credits is incorrect
  • a payment type posting has been incorrectly allocated
  • a payment type posting has been transferred to OAS (Overpayment Accounting System)
  • the quarterly instalment payment (QIP) signal has incorrectly been set to ‘Y’

Where the credit / debit interest indicator (CDII) is set to ‘Y’:

  • the EDP of one or more payment type credits is incorrect
  • a payment type posting has been incorrectly allocated
  • the underlying tax has been decreased
  • not all payments have been included in the calculation
  • the QIP signal has incorrectly been set to ‘Y’