Major UK Tax Policy Changes Effective April–July 2026
From 6 April 2026, several provisions from the UK’s Budget 2025 go into force. For corporations and SMEs, significant updates include:
- Enhanced EMI Scheme: The Enterprise Management Incentive (EMI) scheme limits have increased—company option limits from £3 million to £6 million, gross assets cap from £30 million to £120 million, number of eligible employees from 250 to 500, and the exercise period extended to 15 years. (gov.uk)
- First-year allowances & capital allowances are extended for zero-emission cars and charge-points until March 2027 for Corporation Tax and April 2027 for Income Tax. (gov.uk)
Compliance, Advisory Duties & Penalties
- From April 2026, HMRC’s powers to sanction tax advisers who facilitate non-compliance are enhanced. Adviser registration will become mandatory starting May 2026. (gov.uk)
- Changes in penalty regimes: Corporation Tax late filing penalties will increase. For Self Assessment, new penalty rules will apply from 6 April 2027. (gov.uk)
- Non-reimbursed homeworking deductions are abolished for tax years 2026–27 onwards. Employers may still reimburse without triggering tax/National Insurance. (gov.uk)
Impact on SMEs and Small Advisory Firms
SMEs:
- Zero-emission vehicle investments become more attractive through first-year allowances.
- Higher thresholds in EMI allow larger companies to incentivize employees with equity without losing reliefs.
Tax Advisers:
- Mandatory registration means compliance and professional standards become legally binding.
- Facilitated non-compliance carries greater sanctions, so due diligence in planning is crucial.
Actionable Steps for Businesses and Advisers
- Assess eligibility for the new EMI thresholds—if your business exceeds old caps, consider restructuring or options grants accordingly.
- Plan EV and infrastructure investments before expiry of extended allowances (i.e., before March/April 2027) to maximize tax benefits.
- Review all arrangements with advisers—recommend careful documentation and ensure advisors are registered and following the new rules.
- Train internal teams on managing compliance with the new penalties and adviser obligations to avoid missteps.
Conclusion: Why These Reforms Matter
These changes reflect the UK government’s shift toward cleaner energy, tighter compliance, and more transparency in adviser roles. Early action puts businesses and advisers in a stronger position for both strategic advantage and regulatory conformity.