Simply Business homepage
  • Business insurance

    • Business Insurance FAQs

    Business insurance covers

  • Support
  • Claims
  • Sign In
Call Us0333 0146 683
Chat With UsChat support 24/7

IR35 support

Support and guides on the off-payroll working rules for contractors

Confused about IR35?

IR35 – or the off-payroll working rules – will be applied differently from 6 April 2021, impacting the working lives of contractors across the country. Here, we've pulled together some of our IR35 support guides to help you understand how it could impact you, and what you need to do to prepare.

A man reads his ipad

What is IR35? A guide for the self-employed

What is IR35 and why does it exist?

Find out what the April 2021 changes include, and use our checklist to find out whether you're IR35-compliant.

Read our guide to IR35 rules and IR35 changes 2021.

A man and a woman read something

What does being inside IR35 mean? A guide for the self-employed

If your contract falls 'inside IR35' the government sees you as an employee for tax purposes.

Read our article to find out if you fall inside or outside IR35.

What does being inside IR35 mean?

Companies House sign

What is a ‘personal service company’?

Many contractors will provide their services through a personal service company.

Read the definition and understand why this matters in the context of IR35.

Read more about personal service companies.

A woman looking at a computer

What is mutuality of obligation (MOO)?

Mutuality of obligation can help you understand whether you fall inside or outside of IR35.

Get the basics, and understand why it's been a controversial topic.

Find out what mutuality of obligation is here.

A woman looking at her phone while holding an umbrella

What is an umbrella company?

Working through an umbrella company can be simpler than setting up your own limited company, as it deals with admin.

Find out how they work, and what the advantages and disadvantages are.

What is an umbrella company?

HM Revenue & Customs logo

IR35 delayed by 12 months

This article from March 2020 reported on the government's announcement that off-payroll changes would be delayed until 6 April 2021.

Read our story about IR35 being delayed until April 2021.

Learn more

Keep up to date with Simply Business. Subscribe to our monthly newsletter and follow us on social media.

Subscribe to our newsletter


Public liability insuranceBusiness insuranceProfessional indemnity insuranceEmployers’ liability insuranceLandlord insuranceTradesman insuranceSelf-employed insuranceRestaurant insuranceVan insuranceInsurers


6th Floor99 Gresham StreetLondonEC2V 7NG

Northampton 900900 Pavilion DriveNorthamptonNN4 7RG

© Copyright 2024 Simply Business. All Rights Reserved. Simply Business is a trading name of Xbridge Limited which is authorised and regulated by the Financial Conduct Authority (Financial Services Registration No: 313348). Xbridge Limited (No: 3967717) has its registered office at 6th Floor, 99 Gresham Street, London, EC2V 7NG.