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HMRC internal manual

COTAX Manual

From
HM Revenue & Customs
Updated
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Interest: how interest is calculated: 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
   
To amend an effective date of payment (EDP). AEDP (Amend Effective Date of Payment)
To calculate interest on notional amounts and dates. CINT (Compute Interest)
To view details for an AP. DAPD (Display AP Details)
To view details of an assessment. DASS (Display Assessment Details)
To view interest for a record and calculate liability on the outstanding amount to future dates. DINT (Display Interest Computation)
To issue an interest computation to either the company or agent. IINT (Issue Interest Statement)
To set signals at AP level affecting clerical pursuit, including the ‘credit / debit interest’ indicator (CDII) and repayment and reallocation signals. MAPS (Maintain AP Signals)
To enter case notes relevant to the company.  
The notes must not include any customer information, either the company or its officers, such as bank details. NOTE (Case Notes)  
  To set signals at AP level affecting clerical pursuit, including the ‘credit / debit interest’ indicator (CDII) and repayment and reallocation signals. RAPP (Revise AP Pursuit)
  To transfer an overpayment to OAS in a Debt Management & Banking office. REAO (Direct Reallocation Out Of COTAX)
  To transfer an overpayment to OAS in a CT responsible office. REOD (Direct Reallocation Out Of COTAX)
  To reallocate an overpayment to another AP within COTAX in a Debt Management & Banking office. REAW (Direct Reallocation Within COTAX)
  To reallocate an overpayment to another AP within COTAX in a CT responsible office. REWD (Direct Reallocation Within COTAX)
  To charge or amend interest clerically. RMIC (Raise Manual Interest Charge)
  To view for the AP, suspense or group payment record:  
  • a summary of the payment position
  • details on individual payments and other accounting postings. VPPD (View Payment and Posting Details)