For each financial year and each category of dwellings in its area, a billing authority shall, in accordance with subsection (2) below, set an amount of council tax.
An amount so set shall be calculated by taking the aggregate of—
Where the aggregate amount given by subsection (2) above is a negative amount, the amount set shall be nil.
Dwellings fall within different categories for the purposes of subsections (1) and (2) above according as different calculations have been made in relation to them in accordance with —
A billing authority shall assume for the purposes of subsections (1) and (2) above that each of the valuation bands is shown in its valuation list as applicable to one or more dwellings situated in its area or (as the case may be) each part of its area as respects which different calculations have been so made.
Any amount must be set before 11th March in the financial year preceding that for which it is set, but is not invalid merely because it is set on or after that date.
No amount may be set before the earlier of the following—
No amount may be set unless the authority has made in relation to the year the calculations required by this Chapter.
A purported setting of an amount, if done in contravention of subsection (7) or (8) above, shall be treated as not having occurred.
Where the major precepting authority in question is the Greater London Authority, subsections (2)(b) and (4) above shall have effect as if the references to sections 43 to 47 below were references to the appropriate Greater London provisions.
In this section, "the appropriate Greater London provisions" means—