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HMRC internal manual

COTAX Manual

HM Revenue & Customs
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Background: features of COTAX: changing office details on COTAX output

When COTAX issues output, it includes the name, address and telephone number of the office responsible for the case. The same details are also used by IDMS, EBS, NTC, TCW and SAFE. You must therefore get the agreement of the other IT systems before you arrange for the office details to be changed.

You must have the authority of your senior responsible manager before requesting any changes.

See the Action Guide at COM32006 for guidance on how to change the office details.