{
  "url": "https://openlegislation.uk/social-security-administration-act-1992/section-145",
  "json_url": "https://openlegislation.uk/social-security-administration-act-1992/section-145.json",
  "legislation": "ukpga/1992/5",
  "legislation_title": "Social Security Administration Act 1992",
  "legislation_url": "https://openlegislation.uk/social-security-administration-act-1992",
  "path": "section/145",
  "kind": "section",
  "number": "145",
  "heading": "Power to alter primary and secondary contributions",
  "text": "(1) For the purpose of adjusting amounts payable by way of primary Class 1 contributions, the Treasury may at any time make an order altering the percentage rate specified as the main primary percentage in section 8(2)(a) of the Contributions and Benefits Act.\n(2) For the purpose of adjusting amounts payable by way of secondary Class 1 contributions, the Treasury may at any time make an order altering the percentage rate specified as the secondary percentage in section 9(2) of the Contributions and Benefits Act.\n(3) No order shall be made under this section so as to increase for any tax year the main primary percentage, or the secondary percentage, to a percentage rate more than 0.25 per cent higher than that applicable at the end of the preceding tax year.\n(4) Without prejudice to section 141 or 143 above, the Treasury may make such order—\n(a) amending section 11(6) of the Contributions and Benefits Act by altering the figure specified ... as the weekly rate of Class 2 contributions;\n(b) amending section 13(1) of that Act by altering the figure specified in that subsection as the amount of a Class 3 contribution,\nas the Treasury think fit in consequence of the coming into force of an order made or proposed to be made under subsection (1) above.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "S. 145(1)-(3) substituted (6.4.1999) by Social Security Act 1998 (c. 14), s. 87(2), Sch. 7 para. 92; S.I. 1999/418, art. 2"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Words in s. 145 substituted (1.4.1999) by Social Security Contributions (Transfer of Functions, etc.) Act 1999 (c. 2), s. 28(3), Sch. 3 para. 49(a); S.I. 1999/527, art. 2(b), Sch. 2"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Words in s. 145(1) substituted (with effect in relation to the tax year 2003-04 and subsequent tax years) by National Insurance Contributions Act 2002 (c. 19), s. 8(2), Sch. 1 para. 18(2)"
    },
    {
      "type": "F",
      "label": "F4",
      "text": "Word in s. 145(3) inserted (with effect in relation to the tax year 2003-04 and subsequent tax years) by National Insurance Contributions Act 2002 (c. 19), s. 8(2), Sch. 1 para. 18(3)"
    },
    {
      "type": "F",
      "label": "F5",
      "text": "Words in s. 145(4)(a) substituted (with effect for the tax year 2015-16 and subsequent tax years) by National Insurance Contributions Act 2015 (c. 5), Sch. 1 para. 22(a) (with Sch. 1 para. 35)"
    },
    {
      "type": "F",
      "label": "F6",
      "text": "Word in s. 145(4)(a) substituted (6.4.2024) by National Insurance Contributions (Reduction in Rates) Act 2023 (c. 57), Sch. paras. 4(3)(6)(7)"
    },
    {
      "type": "F",
      "label": "F7",
      "text": "Words in s. 145(4)(a) omitted (with effect for the tax year 2015-16 and subsequent tax years) by virtue of National Insurance Contributions Act 2015 (c. 5), Sch. 1 para. 22(b) (with Sch. 1 para. 35)"
    },
    {
      "type": "F",
      "label": "F8",
      "text": "Words in s. 145(4) substituted (1.4.1999) by Social Security Contributions (Transfer of Functions, etc.) Act 1999 (c. 2), s. 28(3), Sch. 3 para. 49(b); S.I. 1999/527, art. 2(b), Sch. 2"
    },
    {
      "type": "C",
      "label": "C1",
      "text": "S. 145 modified (25.3.2020) by Coronavirus Act 2020 (c. 7), ss. 73(1)(2), 87(1)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukpga/1992/5/section/145",
    "retrieved_at": "2026-10-29T09:36:26.977425+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}