4(1)This paragraph has effect where rent is payable in consideration of the grant of an interest in, right over, or licence to occupy any building or land to which an election under paragraph 2 above relates (or any part of any such building or land).
(2)If—
(a)the rent relates to a period beginning before and ending on or after the first day for which the election has effect; and
(b)the grant for which the rent is consideration would, apart from this sub-paragraph, take place before that day,
the grant shall be treated as taking place on that day to the extent that it is made for rent relating to the part of the period falling on or after that day.
(3)If—
(a)the rent relates to a period beginning on or after the first day for which the election has effect; and
(b)the grant for which the rent is consideration would, apart from this sub-paragraph, take place before that day,
the grant shall be treated as taking place on the first day of the period to which the rent relates.
(4)If—
(a)the rent relates to a period beginning before the first day for which the election has effect; and
(b)the grant for which the rent is consideration takes place on or after that day,
VAT shall not be chargeable on the grant by virtue of paragraph 2 above to the extent that it is made for rent relating to any time before that day.
(5)Where the rent is payable by a person in relation to a period when he is in occupation of a building completed before 1st August 1989 (or part of such a building) or land of which he was in occupation immediately before that date, any VAT which would be chargeable by virtue of paragraph 2 above on the grant for which the rent is consideration—
(a)except in the case of a charity, shall be chargeable as if the consideration were reduced by 50 per cent. if and to the extent that the rent relates to or to any part of the year beginning on 1st August 1989 and ending on 31st July 1990; and
(b)in the case of a charity—
(i)shall be chargeable as if the consideration were reduced by 80 per cent. if and to the extent that the rent relates to or to any part of the year beginning on 1st August 1989 and ending on 31st July 1990;
(ii)shall be chargeable as if the consideration were reduced by 60 per cent. if and to the extent that the rent relates to or to any part of the year beginning on 1st August 1990 and ending on 31st July 1991;
(iii)shall be chargeable as if the consideration were reduced by 40 per cent. if and to the extent that the rent relates to or to any part of the year beginning on 1st August 1991 and ending on 31st July 1992; and
(iv)shall be chargeable as if the consideration were reduced by 20 per cent. if and to the extent that the rent relates to or to any part of the year beginning on 1st August 1992 and ending on 31st July 1993.