5(1)After section 30 of the Management Act there shall be inserted the following section—U.K.
(1)Except as otherwise provided, all assessments to tax which are not self-assessments shall be made by an officer of the Board.
(2)All income tax which falls to be charged by an assessment which is not a self-assessment may, notwithstanding that it was chargeable under more than one Schedule, be included in one assessment.
(3)Notice of any such 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.
(4)After the notice of any such assessment has been served on the person assessed, the assessment shall not be altered except in accordance with the express provisions of the Taxes Acts.
(5)Assessments to tax which under any provision in the Taxes Acts are to be made by the Board shall be made in accordance with this section.”
(2)This paragraph, so far as it relates to partnerships whose trades, professions or businesses are set up and commenced before 6th April 1994, has effect as respects the year 1997-98 and subsequent years of assessment.