# The Social Security Revaluation of Earnings Factors Order 2025, Schedule: Percentage increase of earnings factors for specified tax years


Tax year
Percentage increase
1978-1979
1170.1
1979-1980
1021.0
1980-1981
836.5
1981-1982
684.3
1982-1983
612.4
1983-1984
561.5
1984-1985
512.5
1985-1986
474.5
1986-1987
427.6
1987-1988
391.2
1988-1989
351.9
1989-1990
307.9
1990-1991
280.1
1991-1992
245.2
1992-1993
224.2
1993-1994
208.7
1994-1995
199.5
1995-1996
186.8
1996-1997
179.0
1997-1998
165.7
1998-1999
154.1
1999-2000
143.8
2000-2001
129.4
2001-2002
120.5
2002-2003
111.4
2003-2004
104.1
2004-2005
96.6
2005-2006
88.9
2006-2007
82.7
2007-2008
75.5
2008-2009
68.4
2009-2010
63.3
2010-2011
61.4
2011-2012
57.8
2012-2013
55.0
2013-2014
52.2
2014-2015
50.9
2015-2016
48.7
2016-2017
45.7
2017-2018
42.0
2018-2019
37.9
2019-2020
34.2
2020-2021
29.0
2021-2022
25.7
2022-2023
20.3
2023-2024
12.4
2024-2025
4.5

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Source: https://www.legislation.gov.uk/uksi/2025/255/schedule (the official version)
Page: https://openlegislation.uk/social-security-revaluation-of-earnings-factors-order-2025/schedule
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.