13(1)The first rate is the aggregate of the following percentages—U.K.
(a)0.25 per cent. for each of the first forty complete successive quarters in the relevant period,
(b)0.20 per cent. for each of the next forty,
(c)0.15 per cent. for each of the next forty,
(d)0.10 per cent. for each of the next forty, and
(e)0.05 per cent. for each of the next forty.
(2)In sub-paragraph (1) above “the relevant period” means the period beginning with the day on which the property in respect of which the tax is chargeable became (or first became) property to which paragraph 8 above applies, and ending with the day before the event giving rise to the charge.
(3)For the purposes of sub-paragraph (2) above, any occasion on which property became property to which paragraph 8 above applies, and which occurred before an occasion of charge to tax under that paragraph in respect of the property, shall be disregarded.
(4)The reference in sub-paragraph (3) above to an occasion of charge to tax under paragraph 8 does not include a reference to—
(a)the occasion by reference to which the rate is being determined in accordance with this Schedule, or
(b)an occasion which would not be an occasion of charge but for paragraph 9(4) above.