Compliance
Compliance Overhaul: What Businesses Must Do Before April 2026 in the UK
With new penalties, higher business rates, and tighter regulations coming into effect from April 2026, understanding compliance obligations now can save your business time, money, and risk.
By NomadicTax Research Team • 5-8 min read • March 3, 2026
## Major Compliance Changes on the Horizon
The UK Budget 2025 introduced multiple measures that affect compliance for businesses and firms, particularly from **6 April 2026 onward**. These impacts span **late filing penalties**, **business rates**, **tax adviser regulation**, and changes to reliefs and allowances. ([gov.uk](https://www.gov.uk/government/publications/budget-2025-overview-of-tax-legislation-and-rates-ootlar/budget-2025-overview-of-tax-legislation-and-rates-ootlar?utm_source=openai))
## Specific Areas of Compliance to Monitor
- **Late Filing & Payment Penalties**: HMRC is increasing penalties for late or missed submissions for Corporation Tax, VAT, and Self Assessment. For example, returns due from 1 April 2026 will see penalty rates double in some cases under the new Finance Bill. ([gov.uk](https://www.gov.uk/government/publications/budget-2025-overview-of-tax-legislation-and-rates-ootlar/budget-2025-overview-of-tax-legislation-and-rates-ootlar?utm_source=openai))
- **Business Rates Changes**: From 1 April 2026, Retail, Hospitality, and Leisure (RHL) properties will pay reduced multipliers; high-value business rate payers (rateable value over £500,000) will pay increased multipliers. ([gov.uk](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html?utm_source=openai))
- **Tax Adviser Registration & Standards**: All tax advisers who interact with HMRC must register from April 2026. Enhanced powers and sanctions are also being introduced for advisers facilitating non-compliance. Arbitrary or substandard advice will bring legal risks. ([gov.uk](https://www.gov.uk/government/consultations/enhancing-hmrcs-ability-to-tackle-tax-advisers-facilitating-non-compliance/enhancing-hmrcs-powers-tackling-tax-advisers-facilitating-non-compliance?utm_source=openai))
- **Record-Keeping & Digital Filings**: As the UK moves toward higher digital interaction (targeting ~90% of interactions by 2030), businesses should ensure their transactions, expenses, and relief claims are properly documented in digital accounting systems. Manual submissions or loose documentation will increase audit and penalty risk. ([gov.uk](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html?utm_source=openai))
## Practical Steps for Businesses
1. **Audit all upcoming returns** (VAT, Corporation Tax, Self Assessment) for deadlines, and make sure submissions will comply with enhanced penalty structures.
2. **Plan property and premises expenses** with business rates multiplier changes in mind—negotiate lease valuations, examine relief eligibility, and possibly restructure how premises are owned or occupied.
3. **Engage a registered tax adviser** who meets the upcoming minimum standards. If you work with offshore or non-registered advisors, review the risks, especially for compliance and penalties. ([gov.uk](https://www.gov.uk/government/consultations/enhancing-hmrcs-ability-to-tackle-tax-advisers-facilitating-non-compliance/enhancing-hmrcs-powers-tackling-tax-advisers-facilitating-non-compliance?utm_source=openai))
4. **Digitise financial and tax processes** now—accounting software, document retention, MTD-compliance where applicable.
5. **Reimburse rather than deduct** employee expenses where possible—employers offering home-working equipment or eye test reimbursement will protect employees from mis-taxation. From 6 April 2026, deductions for non-reimbursed home working expenses will no longer be available. ([gov.uk](https://www.gov.uk/government/publications/budget-2025-overview-of-tax-legislation-and-rates-ootlar/budget-2025-overview-of-tax-legislation-and-rates-ootlar?utm_source=openai))
## Compliance Scenario: SME Preparation Plan
A small hospitality business:
- Leases two properties; one valued £400,000, the other £600,000.
- Operates with contract and PAYE staff, home-working part time.
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**Risks under new rules**:
- High-value property will face increased business rate; must plan to offset or negotiate.
- Any unpaid or late VAT or Tax returns could draw doubled penalties.
- Using non-registered tax advisers may risk being caught under enhanced sanctions.
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**Action Plan**:
- Budget for business rate increase on the £600,000 property starting April 2026.
- Review all payable and return-due filings ahead of deadlines; make use of direct debit or digital filing.
- Switch to registered advisers, verify credentials.
- Shift employee reimbursements into practice now.
## Final Thoughts
Failure to prepare for these compliance changes could result in higher tax bills, penalties, or even legal exposure. Use the remaining time before many measures come into force to restructure, review, and digitise. A robust compliance posture will reduce uncertainty and safeguard your business in the evolving UK tax environment.