The Greater London Authority (Consolidated Council Tax Requirement Procedure) Regulations 2019

In relation to each financial year the Greater London Authority (“the Authority”) is required to make the calculations set out in section 85 of the Greater London Authority Act 1999 (“the 1999 Act”), including the calculation of its consolidated council tax requirement.

Link: The Greater London Authority (Consolidated Council Tax Requirement Procedure) Regulations 2019
Source: Legislation .gov.uk