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HMRC internal manual

COTAX Manual

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HM Revenue & Customs
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CT Pay and File: assessments: COTAX tolerances

When a return is captured, COTAX automatically highlights any errors in the data entered, giving the operator an opportunity to amend or confirm the entry.(This content has been withheld because of exemptions in the Freedom of Information Act 2000)

  • (This content has been withheld because of exemptions in the Freedom of Information Act 2000)
  • (This content has been withheld because of exemptions in the Freedom of Information Act 2000)

(This content has been withheld because of exemptions in the Freedom of Information Act 2000)

  • (This content has been withheld because of exemptions in the Freedom of Information Act 2000)

(This content has been withheld because of exemptions in the Freedom of Information Act 2000)

(This content has been withheld because of exemptions in the Freedom of Information Act 2000)

(This content has been withheld because of exemptions in the Freedom of Information Act 2000)

Note: When you have accepted and recorded the company’s calculation, COTAX does not recalculate those figures on a subsequent amendment to the assessment, even if you alter other relevant figures in the assessment. For example, if you replace COTAX’s recalculated figure for Marginal Relief with the figure from the return and issue the assessment then later amend the assessment to alter the profit figure, COTAX will not recalculate the Marginal Relief figure to reflect the new profit figure. You must calculate the correct figure and enter it.

COTAX shows you that you have replaced its figure with your own.

For a list of functions to use in particular situations, see COM151011.