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How do I determine if IR35 applies to me?

Answered 11 March 2026

Does IR35 Apply to Me?

IR35 (the "intermediaries legislation") is a set of rules that determines whether a worker providing services through an intermediary (such as a personal service company, or PSC) should be treated as an employee for tax and NICs purposes. Here is how to determine if it applies to you.


What the Law Says

Step 1: Are the Basic Conditions Met?

IR35 applies where all of the following conditions are satisfied:

  1. A worker provides services to a client under arrangements involving an intermediary (e.g. your own limited company), rather than under a direct contract with the client;
  2. If the contract had been made directly between the client and the worker, the worker would have been regarded as an employee or employed earner of the client; and
  3. The worker, or an associate, receives or is entitled to receive a payment or benefit from the intermediary that would not otherwise have been chargeable to tax as employment income.

This is also confirmed in the legislation itself (ITEPA 2003, s.49), which states that Chapter 8 applies where:

"an individual ('the worker') personally performs, or is under an obligation personally to perform, services for another person ('the client')… the services are provided not under a contract directly between the client and the worker but under arrangements involving a third party ('the intermediary'), and… if the services were provided under a contract directly between the client and the worker, the worker would be regarded for income tax purposes as an employee of the client or the holder of an office under the client."

Step 2: Who Is Responsible for the Determination?

This depends on the size of the client and whether it is a public authority:

  • Public authorities and medium/large private sector clients → The client is responsible for making the status determination (under ITEPA 2003, ss.61K–61X — the "off-payroll working rules"). The client must issue a Status Determination Statement (SDS).
  • Small private sector clients → The worker's intermediary (PSC) is responsible for self-assessing under ITEPA 2003, ss.48–61 (Chapter 8).

Step 3: Office-Holders

IR35 also applies where the worker is an office-holder under the client. For NICs purposes this has always been the case; for tax purposes it applies to services provided on or after 6 April 2013.


HMRC Guidance / Practice

The Correct Order of Analysis

Before reaching IR35, a PSC must first consider other legislation in this order:

  1. Agency legislation (takes precedence — but does not apply if the worker's services are not subject to supervision, direction or control by any person)
  2. Managed Service Company (MSC) legislation
  3. IR35 legislation (only if neither of the above fully applies)

The "Hypothetical Contract" Test

The key question under IR35 is whether, if the worker had contracted directly with the client (without the intermediary), that contract would have been one of employment. This is assessed by constructing a hypothetical direct contract and applying established employment status case law tests.

The main factors considered are:

  • Mutuality of obligation: There must be an "irreducible minimum" of mutual obligation — the client must be obliged to pay and the worker obliged to do the work.
  • Control: Whether the client has the right to control how the work is done.
  • Personal service / substitution: Whether the dominant feature of the arrangement is the personal service of the specific worker. A limited right of substitution does not necessarily negate personal service.

HMRC's CEST Tool

HMRC provides the Check Employment Status for Tax (CEST) tool to help determine employment status under the off-payroll working rules.

Seeking an Opinion from HMRC

Where there is uncertainty, relevant papers (including contracts) can be submitted to HMRC's IR35 Unit for an opinion on whether the legislation applies to a particular engagement.


Summary Flowchart

Do you provide services via an intermediary (e.g. your own PSC)?
 ↓ Yes
Does the agency legislation fully apply? → Yes → IR35 does not apply
 ↓ No
Does the MSC legislation apply? → Yes → IR35 does not apply
 ↓ No
Is the client a public authority or medium/large private sector?
 → Yes → Client makes the status determination (off-payroll rules, Chapter 10)
 → No → You (via your PSC) self-assess under IR35 (Chapter 8)
 ↓
Would you be an employee under a hypothetical direct contract?
 → Yes → IR35 applies; deemed employment payment required
 → No → IR35 does not apply

Citation sources

1 LEGISLATION
Income Tax (Earnings and Pensions) Act 2003

Part 2 Employment income: charge to tax Chapter 8 Workers' services provided through intermediaries to small clients Application of this Chapter Engagements to which this Chapter applies 49 1 This Chapter applies where— a an individual (“the worker”) personally performs, or is under an obligation personally to perform, services for another person (“ the client ”), aa the client is not a public authority, b the services are provided not under a contract directly between the client and the worker

Primary legislation
2 MANUAL
Opinions on contracts: the basic process

IR35 Unit role From 1 December 2002, the IR35 Unit will give an opinion as to whether the legislation applies to a particular engagement in relation to all customer service requests. Consequently, where such a request is made locally all the relevant papers should be sent to the IR35 Unit. Local IR35 Inspector customer service role The local IR35 Inspector will take responsibility for reviewing the evidence and giving an opinion in the following circumstances: where the IR35 Unit has received a

HMRC guidance
3 MANUAL
Employment income: general earnings: amounts treated as earnings

Type of income Statutory provisions Guidance Income of agency workers Sections 44 to 47 ITEPA 2003 Employment Status Manual Workers providing services through intermediaries to small clients (the “IR35” provisions) Sections 48 to 61 ITEPA 2003 Employment Status Manual Managed Service Companies Sections 61A to 61J ITEPA 2003 Employment Status Manual Workers’ services provided through intermediaries to public authorities or medium or large clients (the “IR35” provisions) Sections 61K to 61X ITEPA

HMRC guidance
4 MANUAL
Particular issues: office and office holders - when IR35 applies

Income Tax (Earnings and Pensions) Act 2003, Part 2, Chapter 8, section 49 Social Security Contributions (Intermediaries) Regulations 2000, regulation 6 Social Security Contributions and Benefits Act 1992, section 2(1) When IR35 applies and a worker provides their services via an intermediary as an office-holder (ESM2502) the rules are different for tax and NICs purposes. It is important to establish when the worker’s services are provided. IR35 - NICs provisions for office-holders The IR35 NICs

HMRC guidance
5 MANUAL
off-payroll working legislation: Chapter 10, ITEPA 2003 (from 6 April 2021): basic principles: responsibilities of the public authority and medium/large-sized organisation not in the public sector

Sections 61M, 61N and 61NA of Chapter 10, Part 2 ITEPA 2003 Regulations 13, 14 and 14A Social Security Contributions (Intermediaries) Regulations 2000 It is the public authority and medium or large-sized non-public sector client’s responsibility to determine whether an engagement is within the scope of the off-payroll working rules. In order to do this, the client will need to take steps to understand who the parties are in the contractual chain. The client should then make a status determinatio

HMRC guidance
6 MANUAL
Agency and temporary workers: agency legislation - provisions from 6 April 2014: service companies (including PSCs)

The agency legislation takes precedence over the managed service company and Intermediaries legislation (sometimes known as IR35). If the agency legislation does not apply, or remuneration paid to the worker from any party in consequence of providing the services is not fully taken into account under the agency legislation, then the PSC must go on to consider if the provisions of the managed service company legislation apply. PSCs which do not meet the definition of a managed service company mus

HMRC guidance
7 MANUAL
Basic principles: when the legislation at Chapter 8 ITEPA 2003 applies

THE FOLLOWING PAGES UP TO AND INCLUDING ESM8280 RELATE ONLY TO ENGAGEMENTS WITHIN CHAPTER 8 ITEPA 2003 Paragraphs 1 and 2 Schedule 12 Finance Act 2000/Sections 49 and 50 ITEPA 2003 Regulation 6 SI 2000 No.727 The legislation applies where; a worker provides services to a client under arrangements involving an intermediary in circumstances such that if the contract had been made directly then the worker would have been: for income tax purposes, an employee of the client for NICs purposes, employe

HMRC guidance
8 MANUAL
Case Law: Dragonfly Consultancy Ltd v HMRC Commissioners

picuously absent’. Henderson J also concluded that a limited right of substitution in the terms stated would have been compatible with an employment relationship between the AA and Mr Bessell - as the terms were quite different from the extreme and unqualified right of substitution which the Court of Appeal considered in Tanton. 2. Control Henderson J agreed with the Special Commissioner that a schedule supporting the first lower level agreement demonstrated that the consultant provided by Drago

HMRC guidance
9 MANUAL
Considering the evidence: mutuality of obligation

Case law has established that there has to be an “irreducible minimum of mutual obligation” for there to be a contract of service and hence employment (see ESM0543). In the context of IR35 it is a notional contract that is being considered and consequently you must be able to point to an irreducible minimum which would have existed. In the Judicial Review of the IR35 legislation the judge stated: “Of course there is in fact no contract between the client and the service contractor, and thus no o

HMRC guidance
10 GUIDANCE
HMRC email updates, videos and webinars for tax agents and advisers

Watch a video about how off-payroll working rules affect businesses that engage with contractors from April 2021. How off-payroll working rules affect businesses that engage with contractors You will learn about: who the changes affect the rules the check employment status for tax (CEST) tool the status determination statement telling contractors and agencies about your processes

HMRC guidance