Tax Planning
Capital Allowance Update: The 40 % First-Year Allowance & What It Means for Investors
A new permanent 40 % first-year allowance for main rate plant and machinery came into effect 1 January 2026 — discover how businesses can use this with examples and planning strategies.
By NomadicTax Research Team • 5-8 min read • February 20, 2026
## What’s the New 40 % First-Year Allowance?
As of **1 January 2026**, a **permanent 40 % first-year allowance (FYA)** for qualifying main-rate plant and machinery is available in the UK. This means that businesses — including those that do not benefit from full expensing — can deduct **40 pounds in tax relief for every £1 spent** on eligible investment in the first year. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai)) Previously, only full expensing for certain assets or standard writing-down allowances applied. This change gives a faster upfront deduction than many previous regimes. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
### Key Features & Effective Dates
- **Effective date**: from **1 January 2026**. Investments in plant and machinery made on or after this date can qualify. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
- **Assets covered**: main-rate plant and machinery — industrial equipment, manufacturing plant, construction machinery, etc. Leased assets and unincorporated businesses (e.g., sole traders, partnerships) also benefit. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
- **Tax rate context**: Corporation Tax remains capped at 25% in the current Parliament; so a 40 % allowance produces a significant effective incentive. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
## How This Impacts Tax Planning
### For Corporations
- **Boost cash flow**: Claiming 40 % FYA lowers taxable profits in the year of investment, reducing Corporation Tax liability sooner.
- **Investment decisions**: Firms evaluating purchases of machinery or technology now need to time them carefully — acquisitions in 2026 that qualify give advantages over later years when writing-down allowances may apply instead.
- **Leased assets**: Even if you lease machinery, the relief applies — so leasing vs purchasing analyses may shift in favour of leasing, depending on contract terms. ([gov.uk](https://www.gov.uk/government/news/business-investment-boosted-with-new-tax-relief-taking-effect-today?utm_source=openai))
### For SMEs & Unincorporated Businesses
- Even for sole traders or partnerships, this allowance can reduce taxable self-employment income when buying qualifying assets. Plan capital investments to align with the annual accounting period to maximise benefit.
## Example Scenarios
- **Manufacturing firm** buys £100,000 of eligible machinery on 2 Feb 2026:
- Under 25% Corporation Tax,
- £100,000 × 40% = £40,000 allowance in year one,
- Profit reduced by £40,000 → tax saving approx £10,000 (25% × £40,000).
- **Small joinery business (unincorporated)** purchases £20,000 tools:
- Benefit comes through self-assessment; net income reduced by £8,000, assuming marginal rate 40%, saving £3,200 tax (depending on overall income). Timing purchase near start of tax year helps maximize relief.
## Actionable Strategies
- Audit capital expenditure pipelines for early 2026 to identify eligible investments.
- Consider bunching purchases into early part of the year where possible to capture the 40 % allowance ASAP.
- Review leasing contracts to ensure they meet eligibility criteria.
- Consult with accountants about partial eligibility: some plant & machinery may have mixed rates; ensure “main-rate” definition is satisfied.
- Document eligibility — keep invoices, asset documentation, and ensure cost base is clear.
## Risks & Things to Watch Out For
- Non-qualifying assets (e.g., low-rate rate assets) won't receive the full first-year allowance.
- Rule changes or phase-outs in future budgets – though now permanent, further legislative changes could alter definitions or rates.
- Potential for overclaiming — HMRC will verify eligibility, so accurate records and valuations are critical.
## Conclusion
The new 40 % first-year allowance represents a meaningful opportunity for businesses to accelerate tax relief on capital investment. By moving quickly, planning asset purchases strategically, and ensuring eligibility, companies and smaller businesses alike can reduce tax bills and improve cash flow. This is a chance to rethink investment timing — make it work in your favour.