The Enhanced R&D Intensive Scheme offers significant tax benefits for loss-making SMEs focused on innovation and research, enhancing financial flexibility.

The Enhanced R&D Intensive Scheme (ERIS) is a UK government initiative launched in 2023 and effective from April 2024. It supports loss-making SMEs investing heavily in research and development (R&D). Eligible businesses can claim a 186% tax deduction on qualifying R&D costs, translating to a 14.5% tax-free credit on surrenderable losses - a net benefit of about 27% of R&D expenditure.
Key points:
ERIS simplifies the claim process through the Company Tax Return, with no separate application needed. However, navigating its requirements can be complex, making expert guidance valuable for maximising claims and ensuring compliance.
Meeting the requirements for ERIS is crucial for taking full advantage of R&D tax relief. To qualify, businesses need to meet three core criteria simultaneously: they must fall under the SME classification, meet the R&D intensity threshold, and be loss-making.
To be eligible for ERIS, your business must fit the Small or Medium-sized Enterprise (SME) classification. For this scheme, an SME is defined as a UK-based company with fewer than 500 employees, an annual turnover of £100 million or less, and gross assets not exceeding £86 million. This status must be confirmed for each accounting period, especially if your business is part of a group or has connected companies, as the assessment is done on a consolidated basis.
Another key requirement is meeting the R&D intensity threshold. For periods starting on or after 1 April 2024, qualifying R&D costs must account for more than 30% of total expenditure. A one-year grace period applies if the 30% threshold was met in the previous 12 months. This is a reduction from the earlier 40% threshold for periods beginning in April 2023, making the scheme more accessible. Costs included in this calculation must comply with GAAP standards and can include pre-trading expenses and specific deductions under the Corporation Tax Act. For example, a software SME with a turnover of £5 million that invests £2 million in R&D easily surpasses the 30% threshold. Together with the SME and loss-making criteria, this establishes a clear but rigorous framework for ERIS.
To qualify, your company must also be loss-making, reporting a trading loss after applying the enhanced R&D deduction. Only surrenderable losses - calculated after the 186% enhanced R&D deduction - can be converted into a payable tax credit at a rate of 14.5%, which is tax-free. The table below provides a concise overview of these criteria:
| Eligibility Criterion | Requirement | Key Considerations |
|---|---|---|
| SME Status | Fewer than 500 employees, turnover under £100m, assets under £86m | Assessed on a group or connected company basis |
| R&D Intensity | Over 30% of total expenditure (from April 2024) | Includes a one-year grace period |
| Loss-Making | Trading loss in the accounting period | Loss calculated after applying the enhanced deduction |
To stay compliant with HMRC requirements, businesses must keep thorough financial records, including details of total expenditure, qualifying R&D costs, and evidence of trading losses. Essential documentation includes payroll records, invoices, technical reports, and accounting statements. Common mistakes, such as misclassifying expenses, failing to consolidate group costs, or maintaining insufficient records, can lead to compliance issues. Even if your initial assessment suggests your business doesn’t qualify, it’s worth digging deeper - many companies find that their activities do meet the criteria for ERIS support.
The Enhanced R&D Intensive Scheme (ERIS) offers notable financial support to eligible businesses. Let’s break down how it works, how it compares to existing schemes, and how it interacts with other funding sources.
ERIS allows companies to deduct 186% of qualifying R&D expenditure. This total includes the standard 100% deduction plus an additional 86% uplift. For loss-making companies, these deductions can be converted into a 14.5% tax-free credit. In real terms, this translates to a cash benefit of up to 27% of eligible R&D spending.
For example, if a company invests £500,000 in qualifying R&D, it could receive a benefit of approximately £135,000. This is particularly valuable for businesses that are heavily investing in innovation but are not yet profitable.
ERIS is a specialised addition to the broader merged R&D scheme. Here’s how it stands out:
| Feature | ERIS (Enhanced Support) | Standard Merged Scheme |
|---|---|---|
| Eligibility Requirements | Exclusively for loss-making, R&D-intensive SMEs | Open to all qualifying companies |
| R&D Intensity Requirement | 30% of total expenditure (effective April 2024) | No specific threshold |
| Deduction Rate | 186% | Lower rates without the 86% uplift |
| Cash Benefit | Up to 27% of qualifying spend | Significantly lower rates |
| Application Process | Claimed via Company Tax Return | Claimed via Company Tax Return |
This enhanced benefit is especially helpful for early-stage companies focused on innovation. Importantly, there’s no separate application process for ERIS - claims are submitted through the Company Tax Return, and businesses have up to two years from the end of their accounting period to file.
ERIS also accounts for other funding sources, including grants and state aid. While companies can still claim ERIS relief if their projects receive such funding, the claim amount or eligibility might be affected if the funding overlaps with the same R&D activities. In these cases, some costs may need to be claimed under the Research and Development Expenditure Credit (RDEC) scheme, which typically offers lower benefits compared to ERIS.
Accurate record-keeping is essential, particularly when dealing with contracted-out R&D projects. Specific restrictions apply to overseas expenditure and externally provided workers under these rules. Seeking expert advice can help ensure claims are both compliant and optimised.
The impact of ERIS on innovative UK SMEs is evident in how it has transformed funding for R&D across various sectors. From technology to healthcare and engineering, these success stories highlight the programme's ability to drive progress and innovation.
Software development companies in the UK have been among the most successful in leveraging ERIS. One standout example is a loss-making SME that poured significant resources into developing AI-driven analytics platforms and cloud-based solutions. These projects involved tackling major technical challenges, such as integrating new algorithms and scaling infrastructure for previously unexplored applications.
By allocating more than 30% of its total costs to R&D, the company met the required intensity threshold. Despite initial hurdles, the SME secured ERIS support, receiving a cash injection that was reinvested into further product development and hiring skilled technical staff. This financial boost enabled the company to continue innovating even in the face of financial difficulties.
In the life sciences sector, ERIS has played a crucial role for companies working on advanced diagnostic tools and medical technologies. For instance, UK biotech SMEs have concentrated on creating rapid diagnostic solutions for antibiotic resistance. These efforts, which often involve clinical trials and prototype development, typically see more than 30% of company costs directed toward R&D. Such high levels of investment, coupled with the technical uncertainties inherent in the work, make these companies prime candidates for ERIS support.
The tax credits provided through ERIS have sped up research timelines and allowed for laboratory expansions. This financial relief has enabled life sciences firms to fund additional clinical trials, recruit specialised research professionals, and invest in advanced lab equipment. These efforts have strengthened the UK's reputation as a leader in biotechnology and medical diagnostics.
Similarly, engineering and manufacturing SMEs have used ERIS to push the boundaries of what’s possible in their fields.
Engineering and manufacturing firms have tapped into ERIS to fund ambitious projects in product design, prototyping, and process optimisation. One manufacturing company, for example, invested in developing industrial equipment aimed at reducing energy consumption by 20%. By meeting the R&D intensity and loss-making criteria, the company successfully claimed tax credits that covered a substantial portion of its R&D expenses.
These ERIS benefits have allowed engineering firms to scale production, enhance product quality, and improve their market position. Many report noticeable gains in turnover and profit margins. The cash credits were reinvested into acquiring new machinery and expanding R&D teams, further boosting innovation and competitiveness. This strategic use of ERIS demonstrates how targeted R&D support can drive sustainable business growth.
Together, these examples show how ERIS has been instrumental in supporting high-risk, high-reward innovation across key UK industries. The scheme not only attracts top research talent but also enables the development of cutting-edge technologies, solidifying the UK's position in global markets. Businesses across sectors report that the immediate financial support from ERIS creates a positive cycle of innovation, where successful projects lead to further funding and talent acquisition, ensuring long-term growth and stability.
The Enhanced R&D Intensive Scheme (ERIS) can be a fantastic opportunity for businesses, but its intricate eligibility rules and HMRC's strict scrutiny make it challenging to navigate. This is why seeking professional guidance is often the smartest move to maximise your claim and avoid costly errors.
The eligibility criteria for ERIS are complex, and this complexity extends to the calculations involved. Specialist advisors bring a deep understanding of how your company's expenses interact with the scheme's requirements. They ensure all qualifying costs are identified and categorised correctly, leaving no stone unturned.
HMRC's rigorous standards add another layer of difficulty. Maintaining detailed records and preparing technical reports that meet these standards is no small task. A professional advisor can help ensure your documentation is airtight, reducing the risk of delays or rejections.
The financial stakes are high. ERIS offers up to a 27% cash benefit on qualifying R&D expenditure. Even small mistakes, like miscalculating R&D intensity or overlooking connected company expenses, can lead to significant financial losses. For example, one engineering firm initially underestimated their claim because they thought only successful projects qualified for R&D tax credits. After seeking expert advice, they realised their error and secured substantial tax relief, which boosted their profit margins and turnover.
This is where firms like Zest R&D Tax Advisors come in, offering the specialised expertise needed to navigate these challenges effectively.
Professional help can simplify the entire ERIS claim process, and Zest R&D Tax Advisors are specialists in this area. They focus exclusively on R&D tax relief and Patent Box schemes, offering tailored expertise for businesses seeking ERIS support. Their process begins with a thorough eligibility assessment, where they review your R&D intensity calculations and loss-making status to confirm your qualification.
Claim preparation is a key part of their service. Zest works alongside your accountant to gather all necessary financial documents, ensuring no eligible cost is missed.
"They ensured that only eligible costs were submitted as part of the claim, but also made us aware of other costs that could be included that we were previously unaware of in order to maximise the value of the claim."
– George Smith MD, Walford Timber Ltd.
Zest also handles the technical documentation, including completing forms like the Additional Information Form (AIF) and Claim Notification Form. They manage the entire submission process, ensuring deadlines are met and following up with HMRC if payment delays occur.
What’s more, Zest offers HMRC enquiry defence at no extra cost, providing reassurance should your claim be questioned. This is especially valuable for businesses involved in niche R&D projects that may not align neatly with standard HMRC categories.
For companies engaged in green R&D, Zest provides tailored advice and reduced fees, reflecting their commitment to environmentally focused innovation. Their carbon-negative operations further highlight their dedication to sustainability while delivering financial benefits.
Beyond accurate claims, working with experts like Zest sets the stage for reinvesting savings into future innovation.
Once your ERIS claim is processed, the financial relief can serve as a springboard for further innovation. The cash credits gained from the scheme can be reinvested strategically, creating opportunities to transform your business. Beyond improving cash flow, these funds can fuel a cycle of innovation, where savings are reinvested into new R&D activities.
Reinvestment often focuses on hiring skilled staff, upgrading equipment, or expanding facilities. For instance, a UK biotech SME secured an ERIS claim worth over £250,000 with expert guidance. These funds accelerated their clinical trials and allowed them to recruit additional research staff.
Manufacturing companies, on the other hand, often use ERIS benefits to invest in new machinery and improve processes. These upgrades not only scale production but also keep the business eligible for future R&D incentives.
The scheme's reliability also supports long-term growth. Many companies find that ERIS enables multi-year project planning and attracts additional external investment, as ERIS eligibility signals genuine innovation.
When treated as an ongoing part of your innovation strategy, ERIS can help consistently track eligibility and grow qualifying R&D activities, ensuring sustainable progress for your business. By reinvesting wisely, businesses can turn financial relief into a foundation for future success.
The Enhanced R&D Intensive Scheme (ERIS) provides UK businesses with a clear opportunity to gain financial rewards for their innovative efforts. With proven success stories in sectors like technology, life sciences, and engineering, ERIS offers a cash benefit of up to 27% on qualifying R&D expenditures. This makes it particularly advantageous for loss-making SMEs with a strong focus on R&D.
The scheme’s recent updates - such as lowering the R&D intensity threshold from 40% to 30% starting April 2024 and introducing a one-year grace period for temporary fluctuations - are designed to provide businesses with greater stability during critical growth phases.
Given the complexity of ERIS, professional advice is essential. Navigating eligibility criteria, calculating benefits, and ensuring compliance with HMRC regulations can be challenging. Engaging specialists ensures all qualifying activities are accurately identified, reducing the risk of errors or missed opportunities.
ERIS enables a total deduction of 186% on qualifying R&D costs and offers a payable tax credit of 14.5% on surrenderable losses. These benefits provide much-needed financial flexibility for loss-making SMEs, distinguishing ERIS from the standard merged scheme.
If you’re a loss-making SME investing in innovation, now is the time to evaluate your eligibility for ERIS. Start by checking whether your qualifying R&D expenditure accounts for at least 30% of your total costs, including those of any connected companies. Remember, even unsuccessful R&D projects can qualify, as the scheme acknowledges that failure is often an integral part of innovation.
Accurate record-keeping is crucial for supporting your claim and ensuring compliance with HMRC requirements. Seeking expert guidance from firms like Zest R&D Tax Advisors can streamline this process. Their expertise in R&D tax relief claims, compliance, and identifying qualifying expenditures can maximise your benefits and simplify the claim process, setting the stage for sustained growth.
ERIS isn’t just about immediate financial relief - it’s a tool for fostering long-term innovation. By reinvesting the benefits into further R&D, businesses can maintain eligibility for future claims while accelerating their innovation efforts. This creates a cycle where government support fuels ongoing growth and strengthens competitive positioning.
Don’t let complex eligibility rules or documentation challenges stand in the way of accessing the support your business needs to innovate and thrive.
The Enhanced R&D Intensive Scheme (ERIS) is tailored for loss-making small and medium-sized enterprises (SMEs) that channel a large portion of their spending into research and development. To qualify, companies must dedicate over 40% of their revenue expenditure to R&D activities.
This scheme offers a higher rate of relief than standard R&D tax relief options. Eligible businesses can claim up to 27% of their R&D costs as a payable tax credit - significantly more than the 19% available to other non-intensive SMEs under different schemes. ERIS serves as a crucial support system for forward-thinking businesses aiming to make the most of their funding opportunities.
To comply with HMRC requirements when applying for the Enhanced R&D Intensive Scheme (ERIS), having well-organised and accurate records is a must. Here’s what you’ll typically need to document:
HMRC requires clear and structured records to back up your claim. Keeping everything current and easily accessible will make the application process smoother and help you stay compliant. For added confidence, consider seeking advice from R&D tax relief experts like Zest R&D Tax Advisors, who can guide you through the process and ensure your claim aligns with HMRC’s standards.
If your research and development (R&D) work has been funded through grants or state aid, you might not be eligible for the standard R&D tax credit scheme. However, there’s still an option: the Research and Development Expenditure Credit (RDEC). This scheme is tailored for projects that have received such funding.
To make the most of this opportunity, it’s crucial to carefully examine how your funding has been allocated. This ensures compliance with the rules and helps you optimise your claim. Seeking advice from specialists can simplify the process and guide you towards the best strategy for your business.

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