R&D Tax Claim Software Companies: A Buyer's Guide for UK Businesses
If you have spent time researching R&D tax credits, you will have come across the growing number of r&d tax claim software companies offering to handle your claim. Some promise a fully automated process. Others claim to maximise your qualifying expenditure. A few simply connect you with a specialist who does the work manually.
The question is: which ones actually deliver for a UK business owner who is not a tax specialist?
This guide covers the main r&d tax claim software companies operating in the UK market as of 2025/26, what each platform does well, where they fall short, and when you are better off working directly with an ICAEW qualified firm like Holloway Davies.
What R&D Tax Claim Software Actually Does
R&D tax credit software typically handles three things:
- Technical narrative preparation. The software guides you through describing the technological advances or uncertainties your project addressed.
- Cost calculation. It identifies qualifying costs (staff salaries, subcontractor fees, consumables, software licences) and applies the correct relief rates.
- HMRC submission. It either generates the CT600 corporation tax return supplementary pages or exports data for your accountant to file.
No software does all three perfectly for every business type. That is the first thing to understand.
The Main R&D Tax Claim Software Companies in the UK
1. Catax (Now Part of Ryan)
Catax has been around since 2008 and was acquired by Ryan, a global tax services firm, in 2022. Their platform is aimed at larger SMEs and mid-market companies. You typically get a dedicated advisor who uses the software to prepare your claim, rather than doing it yourself.
Best for: Companies with R&D claims between £50,000 and £500,000. Manufacturing, engineering, and construction businesses where the technical narrative is complex.
Limitation: Not a self-service tool. You are paying for the advisor as much as the software. Smaller claims below £20,000 may not justify the fee structure.
2. MyR&DClaim (Formerly ForrestBrown)
ForrestBrown rebranded to MyR&DClaim in 2024 and repositioned as a more accessible platform. It offers a guided online process where you answer questions about your projects and costs. The software then generates a technical report and cost calculation.
Best for: Growing tech companies, software developers, and digital agencies with R&D claims from £10,000 to £100,000.
Limitation: The software is strong on the technical narrative but weaker on cost optimisation. If you have complex subcontractor arrangements or overseas workers, you may miss qualifying costs.
3. GovGrant
GovGrant positions itself as a full-service R&D tax credit specialist with a software platform underneath. They employ in-house technical writers and tax specialists. The software is more of a workflow tool than a DIY platform.
Best for: Life sciences, pharmaceuticals, and deep-tech companies where the technical narrative is highly specialised.
Limitation: Not suitable for micro-businesses or sole directors. Their minimum claim value is typically £25,000+.
4. GrantTree
GrantTree is one of the older names in the R&D tax credit space, operating since 2011. They offer both R&D tax credits and grant funding services. Their software platform is proprietary and used by their in-house team rather than offered directly to businesses.
Best for: Companies that also want grant funding support alongside R&D tax credits. Good for businesses in clean tech, AI, and advanced manufacturing.
Limitation: You cannot use the software independently. You are buying a service, not a tool.
5. Leyton
Leyton is a large international firm with a UK R&D tax credit practice. They have their own software for tracking and claiming R&D expenditure. Like Catax and GrantTree, it is advisor-led rather than self-service.
Best for: Larger SMEs and corporates with multi-year R&D programmes. Good for businesses that want ongoing R&D tracking rather than a one-off claim.
Limitation: Their fee model can be opaque. Some clients report unexpected charges for additional project narratives.
6. Claim Capital
Claim Capital is a newer entrant, founded in 2018. Their platform is more self-service oriented. You upload your project descriptions and cost data, and the software generates the claim. They offer a free assessment tool on their website.
Best for: Small tech startups and digital agencies with straightforward R&D projects. Claims from £5,000 to £50,000.
Limitation: The software does not handle complex cost allocations well. If you have part-time R&D staff or shared resources, you will need to do manual adjustments.
What the Software Companies Do Not Tell You
Every R&D tax claim software company markets itself as the solution to a complex problem. But there are several things they rarely mention upfront.
HMRC Is Scrutinising Claims More Closely
Since 2023, HMRC has increased its compliance checks on R&D tax credit claims. The number of enquiries has risen significantly. If your claim uses a software-generated technical narrative that is generic or formulaic, HMRC may reject it or ask for further information.
The R&D tax credits page on our site explains the current compliance landscape in more detail. The short version is that a human-written technical narrative tailored to your specific project is far more likely to pass HMRC scrutiny than a template-driven one.
The Cost Calculation Is Only as Good as Your Data
Software can only calculate qualifying costs from the data you feed it. If you do not track staff time against specific R&D projects, the software will guess. Guessing leads to overclaims or underclaims. Both are problems.
An overclaim triggers an HMRC enquiry, interest, and penalties. An underclaim means you leave money on the table.
Proper time tracking and cost allocation are essential. No software fixes bad data.
The Software Companies Are Not Your Accountant
Most R&D tax claim software companies are not ICAEW qualified accountants. They are specialists in R&D tax credits, which is a narrow field. They will not review your overall tax position, check your corporation tax return for other reliefs, or advise on dividend planning.
If you use a software company to prepare your R&D claim, you still need a qualified accountant to file your CT600 corporation tax return and ensure everything ties together.
When R&D Tax Claim Software Makes Sense
For certain businesses, using an R&D tax claim software company is a sensible choice.
- You have simple, one-project R&D. A single software development project with clear start and end dates, and staff who spend 100% of their time on it.
- You have good time records. You use Xero Projects, Toggl, Harvest, or similar to track staff hours against specific R&D activities.
- Your claim is under £25,000. The fee for a specialist advisor may eat too much of the benefit. A software platform with a lower fee structure makes more sense.
- You want to test the process. If you have never claimed R&D tax credits before, a software platform can help you understand what qualifies and what documentation you need.
When You Should Avoid R&D Tax Claim Software
In other situations, a software-only approach is risky.
- Your R&D is complex or multi-project. If you have several projects running simultaneously, with staff splitting time across them, software struggles to allocate costs accurately.
- You have subcontractors or externally provided workers. The rules around qualifying subcontractor costs changed in 2024. Software may not apply the correct restrictions.
- Your claim is over £50,000. The risk of HMRC enquiry increases with claim size. A professionally prepared claim with a robust technical narrative is worth the investment.
- You are claiming under the R&D Intensive Scheme (ERIS). This scheme applies to loss-making companies where R&D spend exceeds 30% of total expenditure. The eligibility rules are specific, and software may not flag them correctly.
How Holloway Davies Handle R&D Tax Credits
We take a different approach at Holloway Davies. As an ICAEW qualified firm, we integrate R&D tax credit claims into your overall tax and accounting picture.
Here is how it works for our clients:
- We review your projects. Our team discusses your R&D activities with you directly. We ask the questions that draw out the technical narrative HMRC expects.
- We calculate qualifying costs. We pull data from your Xero, FreeAgent, or QuickBooks file. We check staff costs, subcontractor payments, consumables, and software licences against the current HMRC rules.
- We prepare the claim. We write the technical narrative in plain English, tailored to your specific project. We calculate the relief and apply it to your corporation tax return.
- We file everything together. The R&D claim is submitted as part of your CT600 return. There are no loose ends or mismatched figures.
- We handle HMRC enquiries. If HMRC queries your claim, we deal with it. You do not need to find a separate specialist.
This approach costs more than a software platform. But it also reduces the risk of a rejected claim, an HMRC enquiry, or a missed relief.
Cost Comparison: Software vs Accountant
R&D tax claim software companies typically charge between 10% and 25% of the claim value. Some have a minimum fee of £500 to £1,000. Others work on a fixed fee basis starting around £1,500.
A qualified accountant preparing your R&D claim as part of your annual accounts and tax return may charge a fixed fee of £500 to £2,000 depending on complexity. The key difference is that the accountant's fee covers the full tax return, not just the R&D claim.
If your claim is £10,000 and the software company charges 20%, that is £2,000. An accountant charging £1,500 to prepare the claim and file the return is cheaper and more comprehensive.
For larger claims, the maths changes. A £100,000 claim at 15% software fee is £15,000. An accountant may charge £3,000 to £5,000 for the same work. The saving is significant.
Making the Right Choice for Your Business
The decision comes down to three factors: claim size, complexity, and your existing relationship with an accountant.
If you already work with an ICAEW qualified accountant who handles R&D tax credits, there is rarely a reason to use a separate software company. Your accountant knows your business, your financials, and your tax position. Adding a software company into the mix creates duplication and potential for error.
If you do not have an accountant, or your current accountant does not handle R&D claims, then a software company may be a practical starting point. Just be aware of the limitations and the need for a qualified accountant to file the final return.
For businesses with straightforward R&D and a good accountant, the best approach is often to let your accountant handle the claim. The software companies are selling a service that your accountant can already provide, usually at a lower effective cost and with better integration.
If you are unsure whether your R&D activities qualify, or what the best route is for your claim, speak to us. We can review your projects, estimate the claim value, and advise on the most cost-effective approach. Contact our team to start the conversation.
Frequently Asked Questions
Can I use R&D tax claim software without an accountant?
Yes, you can use software to prepare the technical narrative and cost calculation. But you still need a qualified accountant to file the CT600 corporation tax return that includes the claim. The software companies typically do not file your full return.
How much do R&D tax claim software companies charge?
Most charge between 10% and 25% of the claim value, with minimum fees from £500 to £1,500. Some offer fixed fees for smaller claims. Always ask for a full breakdown of fees before agreeing to use a platform.
Will HMRC accept a software-generated R&D claim?
HMRC will accept a software-generated claim if the technical narrative is specific to your project and the cost calculation is accurate. Generic or template-driven narratives are increasingly rejected. HMRC has stepped up compliance checks since 2023.
What is the difference between R&D tax claim software and an R&D tax credit specialist?
Software provides a platform to prepare your claim. A specialist provides a human advisor who reviews your projects, writes the narrative, and calculates costs. Some software companies also offer advisor-led services. The main difference is the level of human input and the cost.