If your agency is spending heavily on developing new software, tools, or processes, the standard R&D tax credit scheme already gives you a decent return. But if your R&D spend is high relative to your total costs, you may qualify for an enhanced route: the R&D intensive support mechanism.
Important: the rates described in this article apply to accounting periods starting between 1 April 2023 and 31 March 2024 (the transitional intensive SME period). For accounting periods beginning on or after 1 April 2024, the merged scheme fully replaces the old SME regime, and the intensive route is now called Enhanced R&D Intensive Support (ERIS). ERIS gives a 14.5% payable credit and an 86% enhanced deduction for qualifying loss-making SMEs whose R&D spend is at least 30% of total costs. Do not use the 27% rate or the 186% deduction for post-1-April-2024 periods.
For the transitional period (accounting periods beginning 1 April 2023 to 31 March 2024), HMRC offered a higher payable credit rate of 27% for loss-making companies meeting the intensive SME test. The 186% enhanced deduction applied to profitable intensive SMEs. The 30% intensity threshold applies in both the transitional period and ERIS.
This article explains the r&d intensive sme rate agency test in plain English: what counts, how to calculate it, and whether your agency qualifies.
What Is the R&D Intensive SME Test?
The intensive SME test is a simple threshold. If your qualifying R&D expenditure is 30% or more of your total costs for the accounting period, you are an "R&D intensive" company. This unlocks the higher payable credit rate if you are loss-making.
Under the merged scheme (accounting periods from 1 April 2024), everyone gets a 20% expenditure credit, which is taxable, so it is worth roughly 15p to 16.2p per pound of qualifying spend. ERIS works differently for loss-making R&D-intensive SMEs: you get an 86% enhanced deduction on qualifying spend, then surrender the enhanced loss (capped at 186% of qualifying spend) for a 14.5% payable cash credit. At the cap that is 26.97p per pound. For an agency spending £100,000 on qualifying R&D, that is up to £26,970 in cash versus roughly £15,000 to £16,200 net under the merged scheme.
HMRC introduced this change in the 2023 Spring Budget, effective for accounting periods beginning on or after 1 April 2023. The rationale was to reward genuinely innovation-intensive businesses, the ones where R&D is not a side project but a core activity.
Who Qualifies for the Intensive SME Rate?
Three conditions must be met:
- You are an SME for R&D purposes (fewer than 500 employees and either turnover under €100m or a gross assets under €86m).
- Your qualifying R&D expenditure is at least 30% of your total costs for the period.
- You are loss-making on a trading basis (your allowable costs exceed your income).
If all three apply (SME, loss-making, 30%+ intensity), you claim ERIS: the 86% enhanced deduction, then surrender the enhanced loss at 14.5%, up to the 186% cap. If you are profitable, intensity does not change your relief: you claim the merged scheme 20% expenditure credit like every other company. Intensity is still worth tracking, because a loss-making year would unlock ERIS.
What Counts as "Total Costs"?
This is where most agency founders get confused. HMRC defines total costs as the sum of all revenue expenditure included in the profit and loss account, plus any capitalised R&D costs, plus any R&D expenditure that has been capitalised as an intangible asset. In plain terms, it is everything you spend in the period, salaries, rent, software, freelancers, subcontractors, marketing, everything, plus any R&D you have capitalised on your balance sheet.
For a typical agency, total costs will be dominated by staff costs, premises, and third-party contractor payments. The intensive SME test requires that at least 30% of that total is qualifying R&D spend.
Here is a worked example on the current ERIS rules. A 15-person digital agency in Manchester Northern Quarter has total costs of £1.2m in its accounting period. Its qualifying R&D spend is £400,000. That is 33.3% of total costs, so it qualifies as R&D intensive. Say it makes a £200,000 trading loss before R&D relief. The 86% enhanced deduction adds £344,000, taking the enhanced loss to £544,000, comfortably inside the £744,000 cap (186% of £400,000). Surrendering £544,000 at 14.5% gives a cash credit of £78,880. If its losses had covered the full cap, the maximum credit would be £107,880, which is 26.97% of the qualifying spend.
What Qualifies as R&D for a Creative or Digital Agency?
This is the critical question. Many agency founders assume R&D tax credits are only for labs and pharmaceutical companies. That is wrong. HMRC's guidelines specifically include software development, process innovation, and technical problem-solving.
For a creative or digital agency, qualifying R&D typically includes:
- Developing new software platforms or tools for clients
- Building proprietary AI or machine learning models
- Creating new algorithms for data processing, targeting, or automation
- Designing and testing new technical architectures
- Resolving technical uncertainties in software or hardware integration
- Developing new methodologies for data analysis or visualisation
The key test is whether there was a technical uncertainty that could not be resolved by a competent professional in the field. If your team had to experiment, test, and iterate to find a solution, that is R&D. If they simply applied existing techniques in a standard way, it is not.
For example, a web design agency building a standard WordPress site for a client is not doing R&D. But that same agency building a custom headless CMS with real-time data synchronisation across multiple platforms, where no off-the-shelf solution existed, almost certainly is. The difference is the technical challenge.
How to Calculate the 30% Threshold
The calculation is straightforward in theory but requires careful categorisation in practice.
Step one: identify all qualifying R&D expenditure for the period. This includes direct staff costs (salaries, employer NI, pension contributions) for staff directly engaged in R&D, plus qualifying indirect costs (a percentage of overheads, typically 65% of staff costs under the HMRC simplified method). It also includes externally provided workers and subcontractor costs, subject to restrictions.
Step two: identify your total costs for the period. This is all revenue expenditure from your P&L, plus any capitalised R&D costs. Do not include capital expenditure on assets not related to R&D (like office furniture) unless they are part of the R&D project.
Step three: divide qualifying R&D spend by total costs. If the result is 30% or higher, you are intensive.
Step four: if you are loss-making and intensive, claim ERIS (surrender the enhanced loss at 14.5%). If profitable, claim the merged scheme 20% expenditure credit.

