Paragraph 15 Amendment of return by taxpayer during enquiry
United Kingdom
This paragraph applies if a return is amended under paragraph 11(1) at a time when an enquiry into the return is in progress in relation to any matter to which the amendment relates or which is affected by the amendment.
The amendment does not restrict the scope of the enquiry but may be taken into account (together with any matters arising) in the enquiry.
So far as the amendment affects the amount stated in the self-assessment included in the return as the amount of tax payable, it does not take effect while the enquiry is in progress in relation to any matter to which the amendment relates or which is affected by the amendment.
If an officer of Revenue and Customs states in a closure notice that the officer has taken account of the amendment and that—
the amendment has been taken into account in formulating the amendments contained in the notice, or
the officer has concluded that the amendment is incorrect,
the amendment does not take effect.
Otherwise, the amendment takes effect when a closure notice is issued.
For the purposes of this paragraph and paragraph 16, the period during which an enquiry is in progress in relation to any matter is the whole of the period—
beginning with the day on which notice of enquiry is given, and
ending with the day on which a closure notice is issued.