Expert defence for stress-free enquiries
At Ayming, we understand that an HMRC enquiry can be both disruptive and resource-intensive. That’s why we include HMRC Enquiry Defence as a standard clause in all our R&D tax engagements. Should HMRC raise questions regarding your claim, our dedicated team of specialists will support you from the moment the enquiry is launched until it is resolved, ensuring the process is managed swiftly, accurately, and with minimal stress for your team.
Whether you’re an existing client or approaching us for support with a historic claim, Ayming’s expert guidance ensures that your business is well-positioned for a positive outcome.
How we can help
As part of your contract with us, full enquiry support is guaranteed at not additional cost. This includes:
- A dedicated enquiry defence team on-hand throughout the process,
- comprehensive representation to HMRC,
- ongoing liaison with your internal, technical, and finance teams, and
- Full case management, from first contact to final resolution.
This proactive approach ensures you’re never left navigating HMRC requests alone.
Not currently an Ayming client?
Even if we didn’t prepare your original R&D tax claim, Ayming can still help. Our HMRC Enquiry Defence service is available to companies facing enquiries for claims prepared in-house, via accountants, or through other providers.
Whether you’ve just received a compliance letter or are already partway through an enquiry, our experienced consultants can take the lead, protecting your claim and working towards a fair timely resolution.
Our strength in numbers
total benefit received by our clients from HMRC
UK client retention rate
HMRC enquiry rate, whereas average rate is 20%
Steps to success
We begin with a no-cost, no-obligation review to determine whether our Enquiry Defence service is the right fit for your case.
We review your exisiting R&D tax claim(s) and all HMRC correspondence to understand the scope of the enquiry. We’ll offer immediate guidance and begin building your defence strategy.
Following our review, we’ll develop a tailored response plan, aimed at resolving the enquiry as efficiently as possible while limiting disruption to your operations.
Ayming will manage all communications with HMRC, ensuring clear, consistent messaging throughout. We’ll engage directly with your team to gather any additional information and are available for on-site or virtual meetings.
We will continue to represent and support you for the duration of the enquiry, maintaining direct communication with HMRC and keeping you updated every step of the way.
Once resolved, we’ll provide detailed feedback and practical recommendations to help strengthen future R&D claims and minimise the risk of further scrutiny.
Why choose Ayming for Enquiry defence?
- Specialist led support: unline general tax advisors, our team specialises exclusively in R&D tax relief.
- End-to-end management: We take full ownership of your enquiry, freeing up your internal teams.
- Expert negotiation: Our consultants are experienced in defending claims and engaging with HMRC on complex technical grounds.
- Future-proofing: We help embed best practiced in your organisation to reduce the likelihood of future enquiries.

Our R&D funding experts
Meet the experts that will lead your claims to success.
Services
R&D funding

R&D tax credits
Unlock cash savings and reinvest in innovation with expert support to optimise your R&D tax claim value while ensuring full HMRC compliance.

Real time R&D reporting
Gain real-time visibility of your R&D costs, simplify forecasting, and streamline claims with proactive R&D reporting as projects occur.

Rapid claims
Access R&D funding faster with a streamlined, compliant claims process that accelerates relief and boosts cash flow when your business needs it most.

Ayming Advance
Have full visibility over your R&D tax claims with our online platform, giving you real-time insights, improved compliance, and reduced risk.

Patent box
Reduce your corporation tax to 10% on profits from patented innovations and retain more value from your intellectual property.

R&D tax credits
<p>Unlock cash savings and reinvest in innovation with expert support to optimise your R&D tax claim value while ensuring full HMRC compliance.</p>

Real time R&D reporting
<p>Gain real-time visibility of your R&D costs, simplify forecasting, and streamline claims with proactive R&D reporting as projects occur.</p>

Rapid claims
<p>Access R&D funding faster with a streamlined, compliant claims process that accelerates relief and boosts cash flow when your business needs it most.</p>

Ayming Advance
<p>Have full visibility over your R&D tax claims with our online platform, giving you real-time insights, improved compliance, and reduced risk.</p>

Patent box
<p>Reduce your corporation tax to 10% on profits from patented innovations and retain more value from your intellectual property.</p>