UK Tax Changes and Compliance Updates for April 2026

The UK government has announced several significant tax and regulatory changes coming into effect from April 2026, affecting both individuals and businesses. These updates include adjustments to income tax allowances, inheritance tax reforms, and new compliance requirements that professionals and business owners need to prepare for now.

From 6 April 2026, personal tax allowances will increase across the board. The personal allowance rises to £12,570, while the married couple's allowance increases from £11,270 to £11,700. The blind person's allowance also increases to £3,250. Additionally, the annual fixed amount for qualifying care relief rises from £19,690 to £20,440. These adjustments reflect inflation indexation and provide modest relief to taxpayers.

ICEAEW's Tax Faculty has highlighted significant reforms to inheritance tax (IHT) taking effect from April 2026. The government has increased the allowance for 100% Agricultural Property Relief (APR) and Business Property Relief (BPR) from £1 million to £2.5 million—a substantial concession that will benefit business owners and agricultural enterprises. The allowance will refresh every seven years (10 years for trusts), and any unused amount can be transferred to a surviving spouse or civil partner.

HMRC is sending final batches of Making Tax Digital (MTD) mandation letters to inform taxpayers that they must comply with MTD for income tax from April 2026. This digital-first approach continues to reshape how self-employed individuals and partnerships report their tax affairs. Additionally, the Carbon Border Adjustment Mechanism (CBAM) will be introduced from 1 January 2027, with draft regulations now available for consultation.

For UAE business owners with UK operations or connections, these changes signal the importance of reviewing your UK tax position early. If you have inherited assets or plan business succession, the increased BPR/APR allowance may significantly reduce your tax burden—but you need professional advice to structure this correctly. If you're subject to UK tax reporting, ensure your accountants are prepared for MTD compliance by April. Finally, if your business involves cross-border trade with the EU, start monitoring CBAM regulations now to understand potential carbon-related import costs from next year.