Finance Act 1981

12 (1) Any tax with which a person is chargeable may be assessed on him whether or not it has been paid (in whole or in part) when the assessment is made.

(2) The making of an assessment in respect of any tax shall not affect the date when it is due and payable.

(3) Where a person has under paragraph 9 above delivered to the Board a return and the Board are satisfied that the information given in it with respect to his chargeable deposits is correct and complete, the Board shall make an assessment in accordance with the return.

(4) Where the Board are not so satisfied in relation to a return, or a person fails to deliver to the Board a return as required under paragraph 9 above, any assessment made by the Board shall be made to the best of their judgment.

(5) An assessment may be made at any time not later than 30th September 1987 except that where any form of fraud or wilful default or any neglect has been committed by or on behalf of any person in connection with or in relation to the tax, assessments on that person may, for the purpose of making good to the Crown any loss of tax attributable to the fraud, wilful default or neglect, be made at any time.

(6) An assessment which by virtue of subsection (5) above is made after 30th September 1987 shall require the leave of a Special Commissioner given on being satisfied by an inspector or other officer of the Board that there are reasonable grounds for believing that tax has or may have been lost to the Crown owing to the fraud, wilful default or neglect of any person; and the Special Commissioner giving leave to make such an assessment shall take no part in the proceedings, and shall not be present, when any appeal against the assessment is heard or determined.

(7) A person who is not resident in the United Kingdom may be assessed and charged with the tax in the name of any branch or agent in the United Kingdom.

(8) Notice of any assessment shall be served on the person assessed and shall state the date on which it is issued and the time within which any appeal against the assessment may be made.

(9) After the notice of assessment has been served on the person assessed, the assessment shall not be altered except in accordance with the following provisions of this Schedule.