COM20210 - Assessing: CT pay and file assessments: overpayment after making / amending assessment
When you make or amend an assessment for a CT Pay and File AP, you may create an overpayment. Screens COT120G or COT120H in Functions PASR (Prepare Assessment Based On Return) or PAST (Prepare Full Assessment) show you
- The amount of CT overpaid
- Surplus Income Tax that may be repayable
- Surplus SC60 tax that may be repayable
In most circumstances, COTAX will reallocate or repay an overpayment of CT automatically when you confirm the assessment or amendment.
You must deal with any surplus of Income Tax or SC60 Tax using manual procedures, because COTAX can only handle CT overpayments.
See the ‘Repayments / Reallocations’ business area for more information about
- Preventing an automatic repayment of CT, or dealing with an overpayment in a specific way
- Repaying any surplus of Income Tax or SC60 Tax
For a list of functions to use in particular situations, see COM20011.

