SAM121460 | Returns: individuals returns: manuscript entries on ‘identical’ 3rd party software returns
From HM Revenue & Customs · Self Assessment Manual
If you receive a computer prepared return which contains manuscript entries or amendments which have not been initialled by the taxpayer, you must clarify the entry with the taxpayer before you capture the entry or entries.
If you need to contact the taxpayer to clarify minor points and to avoid delaying capture of the return
Use the telephone or exceptionally if you have been given permission by your manager write to the taxpayer. You must make it clear that the query
Is designed to allow you to process the return on the basis of the figures supplied
Does no more than clarify unclear handwriting or incorrect arithmetic
Make it clear the query is designed to allow you to process the return on the basis of the figures supplied