We help UK businesses unlock R&D tax relief the right way — through accurate, legislation-backed claims, tailored advice, and an expert-led approach that puts integrity first.
At PSS, we believe R&D tax relief should be a tool for innovation, based upon genuine eligibility against the set criteria, meaning that not every company qualifies and not every company should make a claim. But the big problem is, how do you know if you qualify and how do you know if your claim is compliant?
That’s where we come in - we focus on technical accuracy, legislative compliance, and long-term relationships. Our UK-based team of accountants, consultants and industry professionals work with clients across sectors to build robust, HMRC-ready claims. We share our knowledge and expertise, ensure transparency is kept throughout, and work towards ensuring only eligible claims go forward, even if that means telling companies they shouldn’t claim with explanations given as to why.
Educating our clients on what’s eligible and what isn’t is key to help build trust and ensure compliance stays as our number 1 priority.
Total Tax Benefit Claimed
Average Claim Size
Won Disputes
Our compliance-led approach protects your business and ensures that your R&D tax relief claims are built on solid foundations. We never chase inflated claims or mislead clients. Instead, we educate, assess thoroughly, and support you every step of the way — even if that means advising against a claim.
Financial Tax Accountant
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Tax Associate
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Tax Associate
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Accounting provides a clear and organized record of financial transactions, enabling individuals and businesses to understand their financial position at any given time.
This information is crucial for making strategic decisions, setting goals, and planning for the future. Financial statements and reports generated through accounting help.
Businesses use accounting information to allocate resources efficiently. This includes determining the profitability of products or services.
In summary, accounting is an essential tool for maintaining financial order, supporting decision-making, and fostering transparency and accountability in both individual and business financial activities.
Satisfied Clients
Satisfied Clients
Satisfied Clients
Satisfied Clients
Add value and increase client loyalty by partnering with an R&D tax specialist. We are driven to provide exceptional service and achieve the best possible outcome.
These services are designed to help manage financial processes, ensure compliance with regulations, and provide accurate financial information for decision-making.
These services are designed to help manage financial processes, ensure compliance with regulations, and provide accurate financial information for decision-making.
I want to thank you for putting together such a solid package. Very impressed. I really appreciated how you coordinated the process. It was easy and enjoyable talking to you throughout, which is not something I take for granted in these extreme times
" MD OF ECOMMERCE SOFTWARE DEVELOPMENT COMPANY
Great news! The money came in this morning! Many thanks for your help with this. It could not have come at a better time
" MD OF CLASSIC CAR RESTORATION COMPANY
Having previously been told we weren’t eligible for R&D tax credits, we were incredibly grateful for the time you spent on identifying qualifying work and projects with us, ensuring we understood exactly why they were able to be claimed on. The process you took us through was very smooth and easy, always on hand to provide feedback or answer questions we had. We would not hesitate to recommend PSS to our network and we look forward to continuing this relationship with you. Thank you again
" MD OF FIRE & SECURITY COMPANY
In summary, accounting is an essential and dynamic field that goes beyond the stereotype of number-oriented tasks. It is a key driver of financial transparency, accountability, and strategic planning, making it an integral part of the success and sustainability of businesses and organizations.
The process of accounting involves a series of systematic steps to record, analyze, and report financial transactions. Here is an overview of the accounting process:
By taking the time to understand your business and how you work, we will be able to assess your eligibility
We analyse your business activities in greater depth to determine the full extent of your qualifying R&D costs
Helping get you prepared and ready to kick-start the next stage of your innovation.
Estimated Tax Credit
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We’ve been working with the team at PSS for a number of years now on our R&D claim. Throughout this time, they’ve always been proactive in explaining any changes or updates implemented by HMRC to the scheme as well as helping us understand the definitions of R&D and the requirements for eligible work and costs. They consistently make the process seamless and uncomplicated, enabling us to successfully claim as a business and be able to reinvest the tax benefit to continue our work and growth. We’re very happy to continue working with them and would recommend their expertise to others who need help navigating the R&D tax relief scheme
As an innovation-driven company building AI-powered learning solutions, we need partners who understand complexity and bring clarity. RSS Tax has been exceptional. They offer more than just compliance, they bring accounting fluency and an ability to translate our work into compelling, compliant narratives. Their approach makes a typically stressful process feel streamlined and confident. From legislation to storytelling, they get it, and that makes all the difference
We’ve been working with Rob, Conor and the team at PSS for a few years now on our R&D claims. They have always maintained a high level of professionalism, ensuring lines of communication are always open and providing regular updates on relevant regulation and legislation changes as well as the progress of our claims. They consistently demonstrate accountability to us and ensure they share all their work and calculations prior to any submission, ensuring we’re aware and approve of what’s being sent to HMRC. We’ve always been very happy with the level of work and service the team at PSS provide, and would have no hesitation in recommending them to any other eligible business
We are extremely grateful to PSS for the diligent and efficient advice, with our recent R&D claim. Their expertise and advice help to unlock the optimum amount of R&D we were able to claim, with a very quick settlement
Working with Perfect Support Services has been a brilliant experience from start to finish. As a Managed Service Provider, we were looking for a partner who could guide us through the complexities of R&D tax credits without it becoming a huge drain on our time and PSS Tax have delivered exactly that. Jack, in particular, has been outstanding: proactive, clear, and always approachable. He team took the time to educate us on the R&D process and requirements, explaining everything in a way that made sense without the jargon. They kept us fully in the loop at every stage and made the whole process feel streamlined and simple. Thanks to Perfect Support Services, we’ve now successfully completed several claims, unlocking valuable R&D tax benefits that we’ve been able to reinvest back into the business. We’re genuinely grateful for their expertise and would highly recommend them to any business looking for knowledgeable, reliable support with R&D claims
We’ve been working with Perfect Support Services Ltd for several years and have always been impressed by their professionalism and expertise in handling our R&D tax credit claims. The team consistently makes the process smooth and efficient, providing clear guidance and support throughout. Their in-depth knowledge has helped us get the most out of our claims year after year. Jack has also been a great point of contact, always approachable and reliable when we’ve needed assistance. We highly recommend Perfect Support Services Ltd to any business looking for trusted, long-term support with R&D tax relief.
As an accountancy practice, we work with clients across multiple industries and of varying sizes across a broad scope of accounting and tax services. Whilst R&D tax relief is something we’re can do; it’s not an area of expertise as with most accountancy practices. However, since working with the team at PSS it’s enabled us to work and focus on what we’re great at, knowing that our clients can access an equally great and professional service for the nuanced area of R&D tax relief. Several of our clients are now supported by the knowledgeable and competent team at PSS to great success. Even with one client having their claim enquired as part of HMRC’s Mandatory Random Enquiry Process, the team at PSS assured our client and ourselves that all was in hand, that they would deal with things directly, and work to a positive outcome. This was exactly what happened, with PSS closing the enquiry within only a few months, with full acceptance and no amendments. We have always been impressed with the work and diligence undertaken by PSS and wouldn’t hesitate to recommend them to businesses or other accountants who need a team of specialist tax experts to lean on.
The PSS team has been incredibly helpful with our R&D tax claims. Rob guided us through the process, helped us articulate and flesh out the technical details, and was always available when we had questions. We successfully claimed R&D for two consecutive years now and PSS has become our go to for anything R&D related!
I cannot speak highly enough of the team at PSS and the invaluable support they've provided for our clients. As an accountancy firm, we constantly seek to obtain good collaborations with other businesses, to meet our clients' needs, and partnering with PSS Ltd has been a game-changer.
The team's expertise in research and development has consistently delivered groundbreaking results, exceeding our expectations time and time again.
We have received nothing but great feedback from our clients who have had R&D claims put together by PSS, and I would have no hesitation in recommending them again and again.
We’ve been working with the team at PSS for a number of years now on our R&D claim. Throughout this time, they’ve always been proactive in explaining any changes or updates implemented by HMRC to the scheme as well as helping us understand the definitions of R&D and the requirements for eligible work and costs. They consistently make the process seamless and uncomplicated, enabling us to successfully claim as a business and be able to reinvest the tax benefit to continue our work and growth. We’re very happy to continue working with them and would recommend their expertise to others who need help navigating the R&D tax relief scheme
As an innovation-driven company building AI-powered learning solutions, we need partners who understand complexity and bring clarity. RSS Tax has been exceptional. They offer more than just compliance, they bring accounting fluency and an ability to translate our work into compelling, compliant narratives. Their approach makes a typically stressful process feel streamlined and confident. From legislation to storytelling, they get it, and that makes all the difference
We’ve been working with Rob, Conor and the team at PSS for a few years now on our R&D claims. They have always maintained a high level of professionalism, ensuring lines of communication are always open and providing regular updates on relevant regulation and legislation changes as well as the progress of our claims. They consistently demonstrate accountability to us and ensure they share all their work and calculations prior to any submission, ensuring we’re aware and approve of what’s being sent to HMRC. We’ve always been very happy with the level of work and service the team at PSS provide, and would have no hesitation in recommending them to any other eligible business
We are extremely grateful to PSS for the diligent and efficient advice, with our recent R&D claim. Their expertise and advice help to unlock the optimum amount of R&D we were able to claim, with a very quick settlement
We’ve been working with Perfect Support Services Ltd for several years and have always been impressed by their professionalism and expertise in handling our R&D tax credit claims. The team consistently makes the process smooth and efficient, providing clear guidance and support throughout. Their in-depth knowledge has helped us get the most out of our claims year after year. Jack has also been a great point of contact, always approachable and reliable when we’ve needed assistance. We highly recommend Perfect Support Services Ltd to any business looking for trusted, long-term support with R&D tax relief.
The PSS team has been incredibly helpful with our R&D tax claims. Rob guided us through the process, helped us articulate and flesh out the technical details, and was always available when we had questions. We successfully claimed R&D for two consecutive years now and PSS has become our go to for anything R&D related!
I cannot speak highly enough of the team at PSS and the invaluable support they've provided for our clients. As an accountancy firm, we constantly seek to obtain good collaborations with other businesses, to meet our clients' needs, and partnering with PSS Ltd has been a game-changer. The team's expertise in research and development has consistently delivered groundbreaking results, exceeding our expectations time and time again. We have received nothing but great feedback from our clients who have had R&D claims put together by PSS, and I would have no hesitation in recommending them again and again.
From agriculture to AI, we’ve worked with hundreds of companies across sectors - guiding them through the R&D claim process with confidence.
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Book a no-obligation call with our team to check eligibility and explore your claim options.
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