Entity Setup
UK Businesses: Taking Advantage of the New 40% First-Year Allowance on Plant & Machinery
From January 1, 2026, UK firms can deduct 40% of major plant and machinery costs in the first year—understanding which assets qualify and how to integrate this into your entity setup can drive big tax savings.
By NomadicTax Research Team • 5-8 min read • February 21, 2026
## What’s Changed in the UK Tax Regime?
Effective **1 January 2026**, the UK government introduced a **permanent 40% first-year allowance (FYA)** for main-rate plant and machinery. This means businesses can deduct **40% of qualifying investment cost** in the year the investment is made. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai)) It supplements—rather than replaces—the full expensing for company entities which allows immediate 100% deduction for main-rate plant & machinery. For unincorporated businesses and assets used for leasing, the FYA helps level the playing field. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
## What Counts as “Plant & Machinery” and Who Qualifies
- **Plant & machinery** includes large movable assets or structural plant used in business operations—e.g. **machinery**, **warehouses**, **heavy equipment**, **lifters**, etc. Assets treated as ‘main-rate’ typically have a writing-down allowance (WDA) of 18% (dropping to 14% from April 2026) or fall into the first-year/second-year allowances. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
- Both **incorporated companies and unincorporated businesses** can use the 40% FYA for qualifying assets. Unincorporated businesses didn’t benefit from full expensing earlier, so this is a meaningful relief. Leasing businesses also qualify. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
## How to Use the Allowance Effectively
1. **Schedule long-term investment cycles**: If you plan to buy plant & machinery in, say, 2026 or 2027, calculate whether buying earlier captures FYA and whether rolling over to full expensing makes sense if you’re a company.
2. **Asset class review**: Classify your assets properly—are they “main‐rate” or “special rate”? Only main-rate plant & machinery qualify. Check if planned equipment falls under qualifying categories.
3. **Consider finance structure**: If leasing assets, ensure ownership or lease responsibility aligns with tax treatment of first-year allowance.
4. **Budgeting & cash flow**: Taking 40% upfront deduction boosts cash flow by reducing taxable profit early; useful for businesses investing heavily in capital.
5. **Monitor WDA changes**: From April 2026, writing-down allowance rate for main‐rate assets reduces from **18% to 14%**—this may shift behavior for purchases to before or after that date depending on your taxable income. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
## Example Scenarios
- **Example A**: ABC Ltd (a UK company) buys £100,000 worth of qualifying machinery on 5 January 2026. They can claim **100% under full expensing**, entirely in 2026. If not applicable, they can apply the 40% FYA and then spread the rest using WDA at 14-18%. Comparing the scenarios shows large savings in tax payable nearer term.
- **Example B**: Sole trader or small partnership not eligible for full expensing buys £30,000 of plant & machinery. They can claim 40% (£12,000) immediately, rest on WDA. Helps reduce taxable profit significantly in the year of investment compared to spreading entirely over multiple years.
## Bottom Line & Action Steps
- Use the **40% first-year allowance** as a tax‐efficient way to accelerate deductions, especially for large capital expenditures.
- If you have cross-border entities or higher income years, you may want to **time purchases** to maximize relief.
- Review asset classification carefully before purchase or during financial year closing.
- Consult your accountant or tax adviser to model effective tax rates under different timing scenarios.
**In short:** The new FYA in the UK offers important opportunity for businesses at all scales—especially those without company structure access to full expensing—to reduce tax burden and improve cash flow when investing in machinery and plant.