Claims prepared to be checked
Every project tested, every cost evidenced, every claim signed off by a Chartered Tax Adviser.
About
We prepare R&D claims built to stand up to an HMRC enquiry, and we defend claims HMRC is already checking. Every claim is reviewed and signed off by a Chartered Tax Adviser. We reply the same working day.
What we do
R&D Tax Partners is the specialist R&D arm of ASWATAX LTD, Chartered Tax Advisers. Our work here is R&D tax claims and their defence.
Every project tested, every cost evidenced, every claim signed off by a Chartered Tax Adviser.
Including claims prepared by others. We triage an HMRC letter the same working day.
Referral and white-label, with your relationship left alone and referral fees disclosed to the client.
What we stand for
See how we work and our case studies.
Our sister firms
We stay in our lane. For wider tax questions, these sister firms may help:
R&D Tax Partners is a trading name of ASWATAX LTD, company number 12923632, 124 City Road, London EC1V 2NX.
Qualifications
ASWATAX LTD is registered with the Chartered Institute of Taxation as Chartered Tax Advisers, and for the purposes of anti-money laundering legislation. Every R&D claim is reviewed and signed off by a Chartered Tax Adviser.

FAQs
R&D Tax Partners is a firm of Chartered Tax Advisers that specialises in R&D tax relief. We prepare claims built to stand up to an HMRC enquiry, we defend claims HMRC is already checking, including those prepared by others, and we work with accountants who refer or white-label claims. R&D Tax Partners is a trading name of ASWATAX LTD.
Chartered Tax Adviser is a professional designation of the Chartered Institute of Taxation, held by advisers who have passed its examinations and work to its professional standards. At our firm, every R&D claim is reviewed and signed off by a Chartered Tax Adviser before it is filed. It is the check that sits between the technical work and HMRC.
ASWATAX LTD is registered with the Chartered Institute of Taxation as Chartered Tax Advisers and for the purposes of anti-money laundering legislation. HMRC does not itself regulate R&D agents, but it can refuse to deal with them, suspend their online access and publish deliberate defaulters. That makes professional standards matter, and we work to ours on every claim.
R&D Tax Partners is a trading name of ASWATAX LTD, a limited company registered in England and Wales, company number 12923632, with its registered office at 124 City Road, London EC1V 2NX. The legal entity that contracts with you, and that is named to HMRC where agents must be named, is ASWATAX LTD.
We prepare 30+ R&D claims each year. We say 30+ and do not give a more precise number, because we would rather understate than overstate. We do not publish a total across all years, or a figure for claim values, and we do not invent statistics. Every claim is reviewed and signed off by a Chartered Tax Adviser.
Because it is a relief that is checked closely. HMRC reported 9,700 compliance checks in 2023-24, covering 17% of claims, and 77% of checks led to an adjustment. A claim needs specialist attention to the R&D definition, the cost rules and the evidence. We would rather do that well than offer it as one service among many.
ASWATAX, for wider tax advice for companies and their owners; Transaction Tax Partners, for tax advice on buying, selling and restructuring businesses; Demerger Tax, for separating businesses and property; Holding Company, for setting up holding companies and restructuring groups; and Family Investment Company, for passing family wealth to the next generation.
Open and evidence-led. We name every agent as the rules require, we give HMRC accurate answers, and we tell clients plainly if something in a claim needs correcting, even when it is not what they hoped to hear. Telling HMRC about an error unprompted generally leads to lower penalties. We never describe a claim as HMRC-approved.
The registered office of ASWATAX LTD is 124 City Road, London EC1V 2NX. We advise UK companies on UK R&D tax relief. You can reach us by the form, email or phone, and by WhatsApp. We reply the same working day. Our contact page has the details, including the email address and phone number.
We advise on UK R&D tax relief, which is a relief for trading companies chargeable to UK Corporation Tax. A UK company with overseas operations or overseas subcontractors is within our work, and the overseas restriction on contracted-out R&D and externally provided workers is one of the points we check carefully for periods beginning on or after 1 April 2024.
ASWATAX LTD is registered with the Chartered Institute of Taxation as Chartered Tax Advisers. It is also registered for the purposes of anti-money laundering legislation. The Chartered Tax Adviser badge appears on every page of this site. We do not list memberships we cannot back up, and we do not use logos we are not entitled to show.
Because the standard belongs to the firm, not to one person. Every claim is reviewed and signed off by a Chartered Tax Adviser, whoever that is on your claim, and the work is done to a published standard. You will speak to the advisers working on your claim, and they are named to HMRC wherever the rules require.
We say only what we can stand behind. We prepare 30+ R&D claims each year, and no R&D claim we have prepared has been rejected or reduced after an HMRC enquiry. Our case studies are real claims, anonymised to protect the clients. Our advisers are rated 5.0 on Google, and the link goes to the real profile.
Yes. Accountants refer clients to us or white-label our work. Their clients stay their clients, and the accountant remains the client's main adviser for everything outside the R&D work. We pay referral fees to accountants who introduce clients, and we always disclose them to the client. Our accountants pages explain the arrangements.
Yes. We also defend R&D enquiries on claims prepared by others. We start with an independent review of the projects, the costs and the evidence, tell you plainly how strong the claim is, then handle the responses and prepare your competent professionals. We triage an HMRC letter the same working day.
Book a free scoping call. We reply the same working day.
Or write to taxadvisory@aswatax.co.uk
