http://www.legislation.gov.uk/uksi/2021/111/article/1/madeThe Income Tax (Indexation) Order 2021enKing's Printer of Acts of Parliament2021-02-02INCOME TAX This Order fulfils the indexation requirements in sections 21 (relating to the basic rate limit only) and 57 (indexation of allowances) of the Income Tax Act 2007 (c. 3) that certain allowances and limits are increased by reference to the consumer prices index. These increases have effect for the 2021-22 tax year. 1 1 This Order may be cited as the Income Tax (Indexation) Order 2021. 2 In this Order, references to sections are references to sections of the Income Tax Act 2007.