Intangible assets and R&D tax credit claims

Understanding the link between R&D tax relief and intangible assets

The UK’s R&D tax relief scheme rewards innovation by offering tax incentives to companies undertaking qualifying research and development. From April 2024, a single merged scheme now applies to most businesses, with an enhanced relief available for R&D-intensive SMEs under the ERIS regime.

R&D relief is based on revenue expenditure: operational costs that are deducted from your profit-and-loss (P&L) account when calculating your Corporation Tax liability. Commonly included costs are staffing, materials, software and outsourced R&D activity. However, things can become more nuanced when your business capitalises these costs as intangible fixed assets.

What costs can be claimed when you capitalise development?

For a cost to qualify for R&D tax relief, it must be directly connected to qualifying R&D activity and allowable when calculating your taxable trading profits.

To be claimable for R&D tax relief, expenditure needs to be an allowable deduction when calculating your taxable trading profits. In many cases this is straightforward because the costs are expensed in the profit and loss account. Where development costs are capitalised as an intangible asset, the allowability test still matters, but the tax rules can treat certain capitalised development expenditure as qualifying R&D spend through a specific adjustment in the tax computation. This is why it is important to separate what is capitalised for accounting from what is allowable and qualifying for tax.

If you report under IFRS, IAS 38 requires development costs to be capitalised as an intangible asset when the recognition criteria are met. Under UK GAAP, capitalisation is often permitted but may be applied differently depending on the standard and your accounting policy.

Capitalisation in the accounts does not decide R&D eligibility. It changes how costs flow through the accounts, which can affect how you evidence and compute the tax claim.

When capitalised costs do not qualify

Capitalising development costs does not, on its own, make them claimable for R&D tax relief. You still need to show that the underlying work meets HMRC’s definition of R&D and that the costs relate to qualifying activities. The adjustment for capitalised development expenditure is a tax computation mechanism. It does not turn routine product development, commercial work, or general overheads into qualifying R&D.

It is also important to avoid double counting. Where development expenditure has been capitalised, you should not claim the same costs again through later amortisation charges in the accounts. Keeping a clear schedule of what has been capitalised, what has been claimed, and how it is treated in your computation helps prevent errors.

Section 1308: allowing for tax adjustments on capitalised costs

To account for this, the government introduced Section 1308 of the Corporation Tax Act 2009, which allows companies to claim a deduction in their tax computation for costs that are:

• Capitalised in the accounts
• Revenue in nature
• Relate to qualifying R&D activity

This provision effectively allows companies to treat qualifying capitalised intangible costs as if they had been expensed in the P&L but only for tax purposes. It’s important to note that this is a tax adjustment only; your financial accounts remain unchanged.

Key implications:

• The company receives an immediate deduction against trading profits in the year the cost is incurred
• Over time, amortisation must be added back in your tax computation, to avoid double-dipping
• This creates a timing benefit, bringing forward tax relief compared to the gradual amortisation method

A practical example: capitalising software development

Imagine your business spends £10,000 on software development, delivered by an employee. You estimate the resulting platform will have a 5-year useful life, so you capitalise the cost as an intangible asset.

Using Section 1308, the business can claim the full £10,000 as a tax deduction in Year 1, creating alignment with the expensed approach and maximising cashflow in the short term.

Evidence to keep when development costs are capitalised‍

When development costs are capitalised into an intangible asset, HMRC will usually expect a clear link between the asset and the qualifying R&D work that created it. In practice, that means being able to trace the numbers from your claim back to payroll and the ledger, and then through to the capitalisation workings. Keep records showing how staff time was allocated to the development work, how you split qualifying and non-qualifying activity, and how subcontractor or software costs were treated.

It also helps to keep a simple capitalisation schedule that shows what was capitalised in the period, what portion relates to qualifying R&D, and how you have prevented double counting when amortisation later hits the profit and loss account. This does not need to be complex, but it should be consistent and repeatable.

What this means for your R&D claim

If you're capitalising development costs, you should:

• Identify which capitalised costs relate to R&D activities
• Ensure those costs are revenue in nature and directly linked to qualifying work
• Make a Section 1308 adjustment to your tax computation to reflect the deductible amount
• Keep detailed documentation to justify the inclusion of these costs, especially under increased HMRC scrutiny

HMRC’s stance on capitalised R&D costs

HMRC has tightened its compliance efforts and now expects robust, contemporaneous evidence for all costs included in a claim, particularly when intangible assets are involved. Software development, in particular, is an area of close attention.

Claims that include capitalised costs without a clear link to qualifying R&D activity or without the appropriate tax adjustment are at high risk of enquiry.

Best practice includes:

• Maintaining detailed timesheets and cost allocation records
• Clearly distinguishing between qualifying and non-qualifying elements
• Providing project summaries that match HMRC’s R&D definition (science/technology advancement and uncertainty)

Key takeaway: don’t let capitalisation dilute your claim

Capitalising R&D-related spend can make good commercial sense. But without the proper tax adjustment, you could be missing out on relief, or worse, risking an inaccurate claim.

By understanding how to handle capitalised intangible assets and applying Section 1308 correctly, you can strengthen your claim, align with current legislation and ensure your innovation is properly rewarded.