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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.

Smiling professional contractor compliant with IR35

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.

    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.

      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...

      Understanding how IR35 & the Off-Payroll rules work

      Told by your client you’re Outside IR35? Here are 5 key things to check to protect yourself from hidden risks.

      Business team of engagers happy with their contractors' IR35 status assessments

      What happens in an HMRC IR35 check of your Off-Payroll compliance? Learn what triggers a review, and how to prepare & protect your business.

      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

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      Contact us today and learn how we can support your business.

      Bauer & Cottrell - The IR35 Compliance Experts

      Bauer & Cottrell icon

      Bauer & Cottrell Ltd
      The Enterprise Centre
      University of East Anglia
      Norwich
      Norfolk
      NR4 7TJ

      Tel: 01525 406622
      Email: info@bauerandcottrell.co.uk