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Employment Status & IR35 Compliance

If you engage contractors, freelancers, or gig workers, getting employment status wrong exposes you to backdated tax bills of GBP 30,000–50,000+. We help you get it right.

Engagement model

Assess → Review → Remediate → Monitor

67% risk reduction achieved

Tell me what's broken

The Problem

The boundary between self-employment and employment under UK law is complex and high-stakes. If HMRC determines your “contractors” are actually employees under IR35, you face backdated PAYE, Employer NICs, holiday pay, pension contributions, and potentially years of accumulated liability. The language in your contracts, the control you exercise, and the mutuality of obligation all matter.

What I Deliver

01

Employment Status Assessment

5 business days

Review of your current contractor/worker arrangements.

  • Analysis against the three-part IR35 test: Control, Substitution, Mutuality of Obligation
  • Assessment against HMRC CEST tool criteria
  • Risk classification for each engagement (Inside IR35 / Outside IR35 / Borderline)
  • Status determination report with risk assessment per engagement
02

Contract & Documentation Review

5–10 business days

Review of existing contractor agreements for IR35-sensitive language.

  • Employment terminology audit (identifying dangerous terms like “workforce,” “shifts,” “work allocation”)
  • Recommended contract amendments
  • Approved terminology guide customised to your business
  • Contract review report + amended contract drafts + terminology guide
03

IR35 Compliance Programme

10–15 business days

Everything in Assessment and Review, plus ongoing compliance management.

  • Staff training on employment status determination
  • Status Determination Statement (SDS) templates
  • Ongoing review process for new engagements
  • HMRC enquiry preparation pack
  • Complete IR35 compliance programme

My Authority

This service is built on:

  • Employment Rights Act 1996 (s.230 definitions, Parts I/II/X/XI)
  • 5 gov.uk Employment Status guidance documents
  • 5 gov.uk IR35/Off-payroll working guidance documents (including CEST tool)
  • 2 ACAS employment status guidance documents
  • Employment terminology prohibition analysis citing Uber v Aslam [2021] UKSC 5, Pimlico Plumbers v Smith [2018] UKSC 29, Autoclenz v Belcher [2011] UKSC 41
  • Real-world experience navigating IP ownership and employment status disputes

Interested in this service?

Describe the problem. I'll scope a solution and explain exactly what you'll get.

67% risk reduction achieved

Email hello@anomalyops.com

AnomalyOps provides information and compliance operations support, not legal advice. We are not a law firm and are not regulated by the Solicitors Regulation Authority. For legal advice, we recommend consulting a qualified solicitor.