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    "id": "employment.ni.class3.voluntary_rate",
    "name": "Class 3 National Insurance: voluntary contribution weekly rate",
    "category": "employment",
    "jurisdiction": "GB",
    "unit": "GBP/week",
    "value_type": "money",
    "currency": "GBP",
    "cadence": "weekly",
    "source_type": "si",
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      {
        "value": "£18.40",
        "value_minor": 1840,
        "effective_from": "2026-04-06",
        "effective_to": null,
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            "role": "legislation",
            "citation": "The Social Security (Contributions) (Rates, Limits and Thresholds Amendments, National Insurance Funds Payments and Extension of Veteran's Relief) Regulations 2026, SI 2026/231 reg 4 (amending s.13(1) of the Social Security Contributions and Benefits Act 1992: £17.75 -> £18.40; in force 6 April 2026)",
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    "derivation": null,
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      {
        "from": null,
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        "text": "The weekly rate of a Class 3 voluntary National Insurance contribution, paid to fill or avoid a gap in a contribution record for State Pension and bereavement-benefit purposes.",
        "instrument": "Social Security Contributions and Benefits Act 1992 s.13(1)"
      }
    ],
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      "note": "The rate in force for the contribution week; the amendment has effect from 6 April 2026. Contributions paid for EARLIER tax years are charged at the rate for the year concerned, subject to the time limits and higher-rate rules in s.13.",
      "article": null
    },
    "scope_note": "Open to people who are not paying Class 1 or Class 2, and to those with gaps in their record. Not the same as Class 2 voluntary payment, which is cheaper but requires self-employment.",
    "notes": "The GOV.UK employer rates-and-thresholds page does not state this figure; the voluntary-contributions page is the B source.",
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        "role": "guidance",
        "citation": "https://www.gov.uk/voluntary-national-insurance-contributions/rates",
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