The Liberal Democrats unveiled a major tax policy commitment at their autumn conference on 24 September 2026, pledging to raise the Income Tax Personal Allowance to £15,000 and the Primary Threshold for National Insurance Contributions (NICs) to £15,000 per annum (£288/week) within the first two years of a Liberal Democrat government. The policy, costed at approximately £18 billion annually by the Institute for Fiscal Studies (IFS), would be funded by a combination of reversing Capital Gains Tax cuts, introducing a 4% surcharge on banking profits, and clamping down on offshore tax evasion via a strengthened General Anti-Abuse Rule (GAAR). The party argues this targets support at low and middle earners while simplifying the tax-benefit interface.
Key Takeaways
- Universal Benefit, Targeted Cost: Raising both thresholds in tandem avoids the ‘cliff edge’ where NICs liability begins before Income Tax, but the universal nature means 60% of the fiscal gain accrues to higher-rate taxpayers unless accompanied by a corresponding reduction in the higher-rate threshold.
- MTD Interaction: The threshold increases would remove an estimated 2.3 million individuals from the Self Assessment and MTD ITSA nets, significantly reducing administrative burdens for HMRC and taxpayers alike.
- Funding Credibility Questioned: The banking surcharge and CGT reversals face legal and behavioral uncertainty; the IFS notes that the proposed GAAR tightening yields are highly speculative and depend on litigation outcomes.
Disclaimer: This article is compiled and summarized by the AI based on publicly available information and is for general information purposes only. It does not constitute any form of formal tax advice, legal opinion, or basis for performance. Please consult a qualified professional tax advisor or legal counsel for tax advice.
Source: Read Official Announcement