Overview of New Capital Allowances Rules
From Budget 2025, several key changes have been made to UK's capital allowances regime, particularly affecting plant, machinery and electric vehicle infrastructure.(gov.uk) Here’s what you need to know:
| Change | Effective Date | Applies To |
|---|---|---|
| Reduction of main rate Writing-Down Allowance (WDA) from 18% to 14% | 1 April 2026 (Corporation Tax) / 6 April 2026 (Income Tax) | Main rate assets excluding second-hand and high-emission cars (gov.uk) |
| New First-Year Allowance (FYA) of 40% for eligible assets | From 1 January 2026 | Main rate assets; unincorporated businesses and those using assets for leasing included; second-hand assets and cars excluded (gov.uk) |
| Extension of 100% FYA for zero-emission cars and EV chargepoints | Corporation Tax: to 31 March 2027; Income Tax: to 5 April 2027 | New purchases of qualifying zero emission cars & chargepoints (gov.uk) |
Actionable Insights for Businesses and Their Advisors
1. Timing Your Investments
- If you’re planning to buy plant & machinery, accelerate expenditure into April–December 2026 to take advantage of the 40% FYA, especially for Corporation Tax-paying entities. After this window, the relief is less generous due to lower WDAs.
- For zero-emission cars or EV chargepoints, any qualifying purchase before 31 March 2027 (Corp Tax) or 5 April 2027 (Income Tax) can qualify for 100% first-year allowance, giving full deduction in year of purchase.(gov.uk)
2. Asset Filtering for Optimal Reliefs
- Exclude second-hand assets and cars: These do not qualify under the new 40% FYA. If you intend to buy used equipment, rely on the WDA at the reduced 14% rate.(gov.uk)
- For clean vehicles and charging infrastructure, ensure compliance with “qualifying expenditure” definitions to access 100% relief. Keep detailed documentation.(gov.uk)
3. Structuring Ownership and Taxable Entity Choices
- Unincorporated businesses can claim the FYA (40%) from January 2026—even though many allowances historically favored corporations.(gov.uk)
- Leasing assets also qualify under FYA if they meet the definitions—review lease contracts and ensure terms satisfy qualifying criteria.
4. Examples
- Corp tax payer buys new machinery costing £100,000 on 15 February 2026: can claim 40% FYA, i.e. £40,000 deduction; remaining £60,000 enters main rate WDA at 14%. Saves significantly on taxable profits.
- Landlord who buys an EV chargepoint in June 2026: 100% cost can be relieved in the year of expenditure under first-year allowance.
- Business investing in second-hand machine for leasing in October 2026: excluded from FYA, so full cost taxed via WDA at 14%, applying over its depreciation life.
Risks & Things to Watch
- Legislative definitions may include anti-circumvention rules—avoid classifying assets differently for undeserved relief. HMRC may look for substance over form.
- Cashflow implications: only first-year allowances give accelerated relief. Those using WDA must plan for lower deductions over time.
- Record keeping: ensure accurate tracking of assets, dates, costs, eligibility criteria, and whether assets are leased, new, excluded, etc.
Summary
With the reduction in WDAs and the addition of high FYA incentives, the UK tax environment is favourable for businesses investing early in eligible assets—especially zero-emission vehicles and EV chargepoints. To maximize reliefs:
- Plan expenditures before key deadlines;
- Ensure assets meet definitions;
- Choose entity structure wisely;
- Keep strong records;
- Understand cashflow impact of spreading versus front-loading deductions.
By doing so, businesses can meaningfully reduce tax liabilities and accelerate returns on capital investment under the reformed allowances.