http://www.legislation.gov.uk/ukpga/1999/29/section/89Greater London Authority Act 1999An Act to establish and make provision about the Greater London Authority, the Mayor of London and the London Assembly; to make provision in relation to London borough councils and the Common Council of the City of London with respect to matters consequential on the establishment of the Greater London Authority; to make provision with respect to the functions of other local authorities and statutory bodies exercising functions in Greater London; to make provision about transport and road traffic in and around Greater London; to make provision about policing in Greater London and to make an adjustment of the metropolitan police district; and for connected purposes.1999-11-23texttext/xmlenStatute Law Database2026-05-01Expert Participation2026-04-06 Greater London Authority Act 1999s. 334(2A)-(2E)Levelling-up and Regeneration Act 2023s. 95(2)s. 247s. 255(3)(b)Greater London Authority Act 1999s. 334(9)-(11)Levelling-up and Regeneration Act 2023s. 95(3)s. 247s. 255(3)(b)Greater London Authority Act 1999s. 337(1A)Levelling-up and Regeneration Act 2023s. 96(1)(c)s. 96(4) 247s. 255(3)(b)Greater London Authority Act 1999Sch. 23 para. 1(3A)Levelling-up and Regeneration Act 2023s. 244(2)s. 247s. 255(9)(a)Greater London Authority Act 1999Sch. 23 para. 3A 3B and cross-headingLevelling-up and Regeneration Act 2023s. 244(3)s. 247s. 255(9)(a)Greater London Authority Act 1999Sch. 23 para. 4(2A)(2B)Levelling-up and Regeneration Act 2023s. 244(4)s. 247s. 255(9)(a)Greater London Authority Act 1999Sch. 23 para. 4A and cross-headingLevelling-up and Regeneration Act 2023s. 244(6)s. 247s. 255(9)(a)Greater London Authority Act 1999s. 337(2)(ca)Levelling-up and Regeneration Act 2023Sch. 6 para. 15s. 247s. 255(3)(b)Greater London Authority Act 1999Pt. 4 Ch. 8ABus Services Act 2025s. 29s. 41(5)Greater London Authority Act 1999s. 334(2A)(b)Planning and Infrastructure Act 2025s. 58(2)(a)s. 116s. 118(2)(g)Greater London Authority Act 1999s. 334(2D)(b)Planning and Infrastructure Act 2025s. 58(2)(b)s. 116s. 118(2)(g) Part IIIChapter I891Section 45 of the Local Government Finance Act 1992 shall not apply in relation to the Authority, and the following provisions of this section shall have effect in relation to the Authority in place of that section.2The following provisions of this section apply where for any financial year the item mentioned in section 90(1) below relates to a part only of Greater London; and in this section—aspecial item means that item; andbthe relevant part, in relation to such an item, means the part of Greater London concerned.3The Authority shall calculate the basic amount of its council tax for dwellings in any part of its area to which the special item relates by adding to the amount given by the formula in section 88(2) above the amount which, in respect of the special item, is given by the formula in subsection (4) below.4For dwellings in any part of Greater London to which the special item relates, the amount in respect of the special item is given by the formula— S 2 T P 2where—S2 is the amount of the special item;TP2 is the aggregate of the amounts which are calculated by the billing authorities to which the Authority has power to issue precepts as respects the special item (“the billing authorities concerned”) as their council tax bases for the year for their areas and are notified by them to the Authority within the prescribed period.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Subsections (6) and (7) of section 88 above, and any regulations made under or by virtue of either of those subsections, shall have effect in relation to the calculation of TP2 in subsection (4) above as they have effect in relation to the calculation of T in subsection (2) of that section.8Any negative amount given by a calculation under this section shall be assumed to be nil for the purposes of this Chapter and Chapter IV of Part I of the Local Government Finance Act 1992.9The Secretary of State may by regulations do one or both of the following—aalter the constituents of any calculation to be made under or by virtue of subsection (3) above (whether by adding, deleting or amending items);bprovide for rules governing the making of any calculation under or by virtue of that subsection (whether by adding provisions to, or deleting or amending provisions of, this section, or by a combination of those methods).S. 89 modified (E.) (1.2.2002) by S.I. 2002/155, reg. 8S. 89 wholly in force at 12.1.2000; by virtue of s. 425(2) the Act comes into force in regards to any power of a Minister of the Crown to make regulations or an order; s. 89 in force at 12.1.2000 insofar as not already in force by S.I. 1999/3434, art. 2 (subject to transitional provisions in Sch. 1 Table 1)S. 89 modified (E.) (5.2.2000) by S.I. 2000/213, art. 7S. 89 modified (2.2.2001 with effect as mentioned in reg. 1(3) of the amending S.I.) by S.I. 2001/216, reg. 71992 c. 14. Words in s. 89(2) substituted (27.5.2000) by S.I. 2000/1435, art. 2, Sch. Pt. 1 para. 61992 c. 14. S. 89 modified (E.) (with application in accordance with reg. 1(3) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2010 (S.I. 2010/219), regs. 1(b), 9S. 89 modified (E.) (with application in accordance with reg. 1(2) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2003 (S.I. 2003/195), regs. 1(1), 8S. 89(5)(6) repealed (3.12.2011) by Localism Act 2011 (c. 20), ss. 77(8), 240(2), Sch. 25 Pt. 13; S.I. 2011/2896, art. 2(g)S. 89 modified (E.) (with application in accordance with reg. 1(2) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2004 (S.I. 2004/243), regs. 1(1), 8S. 89 modified (E.) (with application in accordance with reg. 1(3) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2006 (S.I. 2006/247), regs. 1(1), 8S. 89 modified (E.) (with application in accordance with reg. 1(3) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2009 (S.I. 2009/206), regs. 1(1)(b), 9S. 89 modified (with application in accordance with reg. 1(2)(3) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2007 (S.I. 2007/227), regs. 1(1)(b), 9S. 89(9)(b) substituted (3.12.2011) by Localism Act 2011 (c. 20), ss. 77(9), 240(2); S.I. 2011/2896, art. 2(g)S. 89(4) substituted (3.12.2011) by Localism Act 2011 (c. 20), ss. 77(7), 240(2); S.I. 2011/2896, art. 2(g)S. 89 modified (E.) (with application in accordance with reg. 1(3) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2005 (S.I. 2005/190), regs. 1(1), 8S. 89 modified (E.) (with application in accordance with reg. 1(3) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2008 (S.I. 2008/227), regs. 1(1)(b), 9S. 89 modified (E.) (with application in accordance with reg. 1(3) of the amending S.I.) by The Local Authorities (Alteration of Requisite Calculations) (England) Regulations 2011 (S.I. 2011/313), regs. 1(1)(b), 9