IR35 Glossary of Terms | Clear, Straightforward IR35 Definitions for All Levels | IR35 Shield

Download your free “Essential Glossary of IR35 Terms”

Straightforward explanations of every IR35 term you need to know.

Cut through the jargon with our free IR35 glossary. Our detailed list breaks down all key off-payroll terms, providing clear explanations to help you handle the legislation with confidence.

What’s inside the glossary?

  • Clear definitions of essential IR35 and Off-payroll terms.
  • Simple, straightforward explanations for beginners and experts alike.
  • Easy-to-digest content that demystifies complex jargon.
  • A practical reference for anyone dealing with IR35.
Happy HR director

Trusted by thousands of proactive businesses every day

  • Multiplex logo
  • AAB logo
  • La Fosse logo
  • PGA logo
  • Petrofac logo

Why understanding IR35 terminology matters

Confusion over IR35 terminology can lead to misunderstandings, mistakes, and compliance issues. Our glossary helps you navigate the language of IR35 with ease, so you can make informed decisions and be confident when talking to your supply chain.

How the IR35 glossary can help you

Our glossary breaks down key IR35 terms into simple, clear explanations. Whether you're a beginner or an experienced professional, this free guide will help you communicate more effectively and build your understanding.

Loved by our partners and their teams

Don't just take it from us, listen to some of the reasons our partners recommend IR35 Shield.

IR35 Shield saves us time, and its robustness leaves us comfortable in the knowledge that our workers have been assessed properly.

Debbie Chinn

Debbie Chinn

HR Advisor - PGA

IR35 Shield ensures our assessment process is robust and compliant. The added benefit of Monitoring gives us peace of mind that potential tax risks arising during contracts are easily identified and resolved.

Richard Mossman

Drew Horrocks

Head of UK TA Operations - Petrofac

The assessment being weighted fairly across all factors gives us the confidence to reassure our clients that the outcome is correct.

Katherine Miller

Katherine Miller

Head of Legal and Audit - La Fosse

Why companies large and small trust IR35 Shield

000,000

IR35 status assessments delivered to our customers. And counting.

0.0

The average recommendation score from our customers.

0000

The year we built and released the UK's first IR35 status tool.

000%

Definitive IR35 status results. Inside or outside IR35, no indeterminates.

00

Over 20 years of experience at the cutting-edge of IR35.

£000K

Defence cost cover available with our Tax Investigation Service.

  • UK FinTech finalist 2021 for Accounting Tech of the Year logo
  • Tolleys Taxation finalist for best digital innovation 2019 logo
  • IR35 Shield are proud to be a Professional Passport supply partner
  • UK IT Industry awards computing finalist 2019 logo
  • Digital Technology leaders awards finalist 2019 logo
  • Financial Times logo
  • The Telegraph logo
  • The Guardian logo
  • Taxation logo
  • Computer Weekly logo
  • Recruiter logo