R&D Tax Credits and Capital Allowances

Research and Development (R&D) tax relief is designed to reward businesses that invest in innovation and it applies to far more businesses than many realise.

If your business is developing or improving systems, processes, materials, devices, software, or methods of operation, you may be undertaking qualifying R&D activity. Importantly, projects do not need to be successful to qualify. Relief is available where genuine technical challenges were addressed, regardless of the commercial outcome.

What Qualifies as R&D?

For tax purposes, R&D is defined by reference to advances in science or technology, not purely commercial innovation.

To qualify, a project must demonstrate that it:

• Sought an advance in science or technology

• Faced technical uncertainty that could not be readily resolved

• Attempted to overcome that uncertainty through systematic work

• Could not have been easily solved by a competent professional in the field

Developing an existing product, service, or process can qualify, provided the work contributes to advancement in the wider field or sector—not just internal business improvements.

Updated R&D Tax Relief Framework

Following recent legislative reforms, R&D tax relief is structured as follows:

Small and Medium-Sized Enterprises (SMEs)

A business qualifies as an SME if it:

• Has fewer than 500 employees, and

• Either turnover under €100 million or balance sheet total under €86 million

Under the current rules:

• Qualifying R&D expenditure receives an enhanced deduction of 86% in addition to the standard 100% deduction

• This provides a total deduction of 186% of qualifying costs

• Loss-making SMEs may surrender losses for a payable tax credit, currently capped and subject to additional restrictions

Recent changes mean claims must now be more tightly evidenced, and additional information submissions are mandatory.

Large Companies and RDEC

Businesses that do not meet SME criteria may claim under the Research and Development Expenditure Credit (RDEC) scheme.

• The RDEC rate is currently 20% of qualifying R&D expenditure

• The credit is taxable, but still provides a net cash benefit

• It is payable regardless of profit position, subject to caps

Increased Scrutiny and Compliance

HMRC has significantly increased scrutiny of R&D claims. Claims must now include:

• Detailed technical explanations

• Cost breakdowns aligned to project activity

• Digital submission of additional information

Incorrect or poorly evidenced claims may be challenged, delayed, or rejected. A disciplined, compliant approach is essential.

Why Claim R&D Tax Relief?

When claimed correctly, R&D relief can:

• Generate a cash repayment or reduce Corporation Tax

• Improve cash flow and reinvestment capacity

• Support continued innovation and development

• Reward genuine technical effort and risk-taking

R&D tax relief is not a grant—it is a recognition of investment already made.

Capital Allowances

Capital allowances provide tax relief on qualifying capital expenditure by allowing businesses to deduct the cost of certain assets from taxable profits.

These rules exist because capital assets depreciate over time, but Corporation Tax is calculated on accounting profits. Capital allowances bridge this gap by providing statutory tax deductions.

Qualifying Expenditure

Capital allowances may be available on expenditure including:

• Plant and machinery

• Equipment and tools

• Certain vehicles

• Energy-efficient and environmentally beneficial assets

• R&D capital assets

Annual Investment Allowance (AIA)

The Annual Investment Allowance (AIA) is the most widely used capital allowance.

• The current AIA limit is £1,000,000 per year

• It allows 100% tax relief in the year of purchase

• Most plant and machinery qualifies

This limit is permanent under current legislation, providing certainty for investment planning.

First Year Allowances (FYA)

First Year Allowances provide 100% relief in the year of acquisition for qualifying assets, including:

• Energy-efficient equipment

• Low-emission and environmentally beneficial technology

These allowances support investment in greener, more sustainable infrastructure.

Why Claim Capital Allowances?

Used strategically, capital allowances can:

• Reduce Corporation Tax liabilities

• Improve post-tax return on investment

• Support planned capital expenditure

• Enable more effective cash flow management

Timing matters. Staggering asset purchases across accounting periods can maximise relief and avoid wasted allowances.

A Missed Opportunity for Many Businesses

HMRC estimates that hundreds of thousands of UK businesses fail to claim capital allowances they are entitled to often because expenditure is incorrectly categorised or overlooked entirely.

A Structured, Compliant Approach

Both R&D tax relief and capital allowances offer significant opportunities but only when approached with technical accuracy, proper documentation, and full compliance.

Our role is to:

• Assess eligibility realistically

• Identify qualifying activity and expenditure

• Prepare robust, defensible claims

• Ensure alignment with current legislation

These reliefs are powerful tools when used correctly and costly when misunderstood.

If you would like to explore whether your business is eligible, or review past claims and expenditure, we can help.