The IR35 Compliance Experts
Simplifying IR35 for Businesses and Contractors for over 20 Years
Specialist IR35 & Off-Payroll Working solutions from the original IR35 compliance experts.
What We Do
We make IR35, Off-Payroll Working and Employment Status easier for contractors, engagers, agencies and accountants.
From contract & working practices reviews to status determinations, ongoing compliance support to general consultancy, we are on your side and trusted by 1000s of contractors and businesses.
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A comprehensive contract and working practices review to establish your IR35 status with formal written opinion report.
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Our annual subscription service which includes unlimited IR35 reviews, priority access to ad-hoc IR35 advice for contractors whenever needed, plus additional benefits such as HMRC defence.
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For contractors who have been assessed as inside IR35 by their client under the Off-Payroll Working rules and want to appeal.
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Representation to defend you against HMRC in the event of an investigation into your IR35 status.
Peace of mind with clear, reliable advice from a business that cares about keeping you on the right side of IR35, helping you stay compliant and confident in every engagement.
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Comprehensive IR35 determinations ranging from single & adhoc assessments, to fully outsourced packages.
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Establish where the IR35 responsibility sits in your supply chain and whether your contracted-out services can be demonstrated as genuine.
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Yearly subscription service which includes dedicated IR35 support, priority & discounted access to all of our services, & ad-hoc IR35 advice for engagers as and when you need it.
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Expert training on the Off-Payroll Working rules. Specifically tailored to your requirements with multiple delivery options available.
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Independent audit and enhancement of your internal IR35/Off-Payroll processes and documentation.
Our IR35 compliance experts make Off-Payroll Working simpler, backed by a proven track record of helping hundreds of engagers get it right.
Who We Are
Established in 2003 by renowned IR35 expert Kate Cottrell, Bauer and Cottrell are leading IR35 compliance experts specialising in IR35, Off-Payroll Working Rules, and Employment Status. Our team offers expert, impartial, and professional advice, having successfully defended countless contractors and businesses in IR35 investigations, with a 100% win track record.
With over two decades of experience, we are known for our exceptional customer service & have built a reputation as a go-to industry leader, dedicated to protecting our clients’ interests and ensuring compliance with the ever-evolving IR35 rules.
What our Clients say...
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“I engaged Charlie to assess my contract prior to starting at a new client. Charlie was fantastic throughout the process. She demonstrated deep understanding of the relevant legislation and always responded promptly and professionally. As an independent expert her advice and opinion were well received by the end client, who provided an outside status determination. With Charlies input, the end client could demonstrate reasonable care had been taken – a win-win for both parties! I cannot recommend Charlie highly enough."
Tony Ward Statcore LtdRead more -
“I’ve used Bauer & Cottrell for several years and wholeheartedly recommend them to everyone that I work with. They’ve successfully negotiated a whole range of adverse and risky terms out of contracts on my behalf, far more effectively than I could’ve by dealing with the relevant agents myself, and taught me more about the practical side of successfully engaging with clients (outside) of IR35 than any other source of information. Their Contractor Guardian Plus service provides me with the complete peace of mind that I don’t believe is otherwise readily achievable within the means of an independent contractor.”
Adam Williamson Network Guy Consultancy LtdRead more -
“Thank you so much for your really prompt, efficient and calm approach in negotiating changes to the proposed contract with my client, to ensure it correctly reflected working practices. You made the whole process seem so straightforward and Bauer and Cottrell’s reputation provides well deserved reassurance that it’s been done properly.”
Stephen Penfold MTwenty International LtdRead more -
"We received excellent IR35 advice from Bauer & Cottrell, and from our very first email approach it was clear that their service was personal and tailored to our specific needs. This really set them apart from other firms we contacted. Charlie’s professionalism and depth of experience were evident throughout. Everything was explained with great care, in clear and accessible terms, and there was always time and willingness to answer our questions fully. We felt supported and confident at every stage. Working with a smaller company like Bauer & Cottrell was a real advantage — their focus on customer experience genuinely shows, and we would not hesitate to recommend them."
Denise Baxter Mull and Iona Community Trust ScotlandRead more -
“The Bauer & Cottrell IR35 Review Package I receive through my accountant has been extremely good value and most importantly how/why the review is done; so it is done correctly, thoroughly and the determination is accurate, in line with current legislation. I have been continually recommending Bauer and Cottrell/this approach to my peers. Even now, where the client is responsible for making the determination, Bauer and Cottrell review all the paperwork and examine the actual working practices, to ensure this has been done correctly. Additionally, when checking the supporting paperwork, Bauer and Cottrell have ensured this accurately reflects the determination and actual working practices. With your help we have the right outcome done properly, which for a recent review, the client very much appreciates being able to retain me for a time sensitive/important project and we know that we are compliant. IR35 determination is complex and often misunderstood. Bauer & Cottrell’s expertise and experience ensure a correctly determined outcome.”
Peter IT Contractor, bankingRead more -
“As someone new to contracting and the complexities of the IR35 regulations, I engaged Bauer & Cottrell Ltd to advise me on an agency contract. Throughout the entire engagement their friendly and professional team were a joy to work with. Their specialist consultant (Charlie) was extremely knowledgeable, responding swiftly to all my questions, and quickly negotiated a compliant contract with the agency on my behalf. I’ve since engaged them again for a subsequent contract and experienced the same fantastic and timely service. I would not hesitate to recommend their services to others in a similar position.”
Ben Moss Kaizen Path Consulting LtdRead more -
“I had to consult with Bauer & Cottrell regarding the IR35 status of one of my contracts, and the service they provided was immaculate, with super fast responses, and full support, including assessment, contract templates, and many revisions until the contract was as watertight as it gets. To top it all, the service was pleasantly friendly. I would highly recommend them for anything IR35 related.”
Haitham Seelawi Eva-Ayla Seelawi ML LtdRead more -
"I would like to thank you for the peerless service you provide at Bauer & Cottrell. Words are not enough to describe the professional support and advice you have given me over the last 10 years (10? wow!). It is through your support, going above and beyond, that I have been able to confidently and smoothly negotiate roles and contracts, knowing that IR35 is comprehensively covered. And thank you also for being a friendly voice on the end of a phone, often in the stressful middle of negotiations!"
Howard Marshall Omni Data Quality LtdRead more
Told by your client you’re Outside IR35? Here are 5 key things to check to protect yourself from hidden risks.
Read our detailed checklist for how your business can prepare for the Off-Payroll Working rules in an approach to losing the small company exemption.
Why the written terms are essential for an outside IR35 contract: including key clauses and what to avoid.
Our Values
Expertise & Competence
Honesty & Integrity
Professionalism
Client Focused
Impartiality
Contact Us
Contact us today and learn how we can support your business.
Bauer & Cottrell - The IR35 Compliance Experts
Bauer & Cottrell Ltd
The Enterprise Centre
University of East Anglia
Norwich
Norfolk
NR4 7TJ
Tel: 01525 406622
Email: info@bauerandcottrell.co.uk
