“The first Budget of a Reform government will increase the tax-free personal allowance for income tax to £15,000, beginning at the next tax year.”

• Reform UK: The First 100 Days: Our Pledges to You (PDF), September 2026
• BBC News: Reform promises to increase tax-free personal allowance to £15,000, 5 Sep 2026
• Chartered Institute of Taxation: Reform UK Conference 2026 report

1. Corrected on 6 Oct 2026: Cost range in version 1The range ran from the first-year cost to the fifth-year cost (a time profile). Cards show one year: the party's fifth-year figure, with an editorial ±10% because the party gives a central figure only.Was: £17.7bn to £21.1bn a year (central £17.7bn)Now: £19bn to £23.2bn a year (central £21.1bn)Source for the correction
2. Corrected on 6 Oct 2026: Cost note in version 1The note used the first-year and fifth-year costs as the ends of a range. It now gives the year shown, the editorial ±10% and the two costs as a time profile.Was: “Reform UK's own costing: £17.7bn in the first year (low and central) and £21.1bn by the fifth year (high), including a behavioural adjustment. No independent costing of the £15,000 pledge was found on 6 Oct 2026; an editor should add one when published.”Now: “Year shown: the fifth year, the latest year Reform UK costed. The party's own costing, including a behavioural adjustment, is £17.7bn in the first year (2026-27 incomes), rising to £21.1bn by the fifth year (central). No independent costing of the £15,000 pledge was found on 6 Oct 2026; an editor should add one when published. Low–high is an editorial ±10% because the source gives a central figure only.”Source for the correction
3. Corrected on 6 Oct 2026: How it is paid for in version 1The entry left out when the savings arrive. The party's costings give the £52bn welfare and £7bn government savings as amounts by the end of the next Parliament.Was: “Previously announced savings: £52bn a year from the Making Welfare Work programme, £7bn from eliminating most foreign aid, £10bn from cutting net zero programmes and £7bn from shrinking the government, plus immigration-related savings (the party lists £91bn of itemised savings and new revenue against £58bn of costs).”Now: “Previously announced savings: £52bn a year from the Making Welfare Work programme by the end of the next Parliament, £7bn from eliminating most foreign aid, £10bn from cutting net zero programmes and £7bn from shrinking the government by the end of the next Parliament, plus immigration-related savings (the party lists £91bn of itemised savings and new revenue against £58bn of costs).”Source for the correction

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