100% HMRC-Compliant R&D Claims
5% fee. 0% Stress.

5 StarsTrustpilot Logo

5% fee capped to £10k.

“Claimer attracted me due to their platform based approach coupled with specific R&D expertise, which will save considerable time in the future at a very reasonable fee.”

David Kay

David Kay
FD, Unmind

Recommended by top VCs

Project A

"Claimer is abstracting away the headache of claiming R&D credits, so startups can focus on their customers and products."

Harry Briggs
Partner, OMERS Ventures

More time and money
to build your business

11.2 hours

Average time saving


Average fee saving


Claims filed (up to £2m)


Average risk reduction

"We've worked with Claimer two years in a row. They are responsive, smart and knowledgeable. Great service provider in terms of quality, speed and insights."

Shane Leonard
CFO, Fronted

Don't just take our word for it

  • The product makes a complex process feel easy and straightforward. I'd recommend to anyone and no doubt we'll be continuing to use them for years to come.
    Carl Holloway
    Dealing with Claimer was a pleasure and Adam and Ben were incredibly helpful and knowledgeable throughout the process with a deep understanding of the R&D tax rules and claim process.
    David Kay
    David Kay
    Finance Director
    We had a super smooth experience with Claimer. Their innovative ways made the usual minefield much easier and actually a fun process. The team has been highly supportive and responsive too. 100% recommended!
    Tony Xu
    Tony Xu
    Founder & CEO
  • A big thank you to the amazing team at Claimer for all of their support with our R&D grant application. A very happy customer. I will recommend and use their service again.
    Alexander Blunt
    Alexander Blunt
    Great team, great service and really simple process. Completing the R&D details was really easy and the claim went through without a hitch. Definitely recommend these guys.
    Stuart McClure
    Stuart McClure
    So easy. Having been through this before with accountants that over complicated the process to justify their 20% fee, Claimer was a breath of fresh air.
    Will Verrill
    Will Verrill
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How it works


Initiate a claim in 10 minutes

Connect Xero, or easily import from any other account software, and add your technical lead.

We do all the work for you

Claimer’s expert tax and tech team maximise your claim by reviewing your financials & project, before writing the report and submitting it to HMRC.

You get paid

If you're due a tax credit or refund, the money is sent to you as soon as the claim is paid by HMRC, between 1-5 weeks later.
✅ Lifetime guarantee included
If your claim is challenged by HMRC, we handle all communication until the matter is resolved.

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