What Is IR35 and What Does It Mean for Your Business?
- Published On:April 18, 2023

Bryan Robinson

IR35 is an important piece of legislation that affects businesses in the UK. According to research, 98% of medium and large companies are affected by IR35 in some way or another.
In April 2000, HMRC introduced Intermediaries Legislation (known as IR35) to tackle disguised employees who were attempting to avoid paying taxes through their own limited company structure.
This article will explore what IR35 is, what it means for your business, and how you can ensure compliance with relevant regulations.
By understanding the implications of this complex set of rules, businesses can take steps to ensure they remain compliant with current regulations while maintaining control over their finances.
What Is IR35?
Let’s address the obvious question, What is IR35 UK? IR35 is legislation that has been in place since 2000 and it was designed to ensure that contractors who are working for companies through intermediaries, such as limited companies, pay the correct amount of tax.
Under IR35 rules, those contractors who work through an intermediary company should pay taxes similar to employees. This means they must pay income tax and National Insurance Contributions (NICs).
The purpose of this law is to stop ‘disguised employment’ where individuals may claim self-employment status but still perform tasks akin to that of a permanent employee. The UK government created IR35 regulations in order to make sure these workers pay their fair share of taxes on earnings received from contracts with clients.
Companies hiring contractors need to assess each contractor independently – assessing whether or not they would pass the HMRC’s tests for employment status if they were employed directly by them.
If the contractor fails any of these tests then they will have to comply with IR35 and operate as an employed worker instead – meaning that both employer and employee will have to pay additional liabilities including Income Tax, Class 1 NICs and Employer’s NI contributions.
Companies should also understand their obligations when it comes to engaging contractors; ensuring they put appropriate measures into action in order to accurately determine the IR35 position before entering into contractual arrangements.
Without taking proper steps towards compliance, there can be serious financial consequences which could be imposed by HMRC if found guilty of non-compliance.
How Does It Work?
IR35 is a piece of UK legislation determining the self-employment status of individuals working in the private sector. The law was introduced back in 2000 and placed responsibility on both end clients and contract workers to determine their employment status for tax purposes. This means that contractors have to prove they are genuinely self-employed by meeting certain criteria – otherwise, they will be seen as employees for tax purposes even if they believe themselves to be independent contractors.
The rules surrounding IR35 can seem complex, but understanding them is essential for businesses to ensure compliance with HMRC guidelines. Here are some key points about IR35:
Identifying Self-Employment Status: Contractors must meet three tests – control, mutuality of obligation (MOO), and substitute worker test – to prove they are truly self-employed.
- Control Test: A true contractor would not be subject to another’s direction or supervision over how they do their work; rather, the contractor should have full autonomy over what tasks need to be done when it needs to be done, and how it gets done.
- Mutuality of Obligation: There has to be an ongoing contractual relationship between the two parties involved (client/end user & contractor) before any payment takes place. If there isn’t then this implies employee status instead of self-employment.
- Substitute Worker Test: A contractor should be able to provide someone else other than themselves to complete the task at hand under similar terms as those originally agreed upon with the client/end user.
Failing these tests could result in hefty fines from HMRC along with steep back payments due; therefore it is important for businesses engaging contractors to understand their obligations under IR35 legislation and take steps towards ensuring compliance accordingly.
Assessing Contractors For IR35
IR35 is a piece of legislation passed by the UK government in 2000 that seeks to prevent contractors from avoiding paying income taxes on their earnings. It applies when the contractor’s working arrangements are more akin to those of an employee than a self-employed individual.
Under IR35, any payments made to contractors who fall within its scope must be subject to both Income Tax and National Insurance Contributions (NICs). This means that businesses engaging with these types of contractors must take responsibility for assessing them correctly and making sure they pay the right amount of tax.
The rules defining which contractors need to comply with IR35 can be complex, so it’s important for businesses to understand how it works in order to determine whether or not it will apply in each situation. To do this, employers should conduct a detailed analysis of the contractual terms and conditions between themselves and the contractor, along with considering other factors such as payment methods and control over hours worked.
Businesses also have a duty under IR35 regulations to ensure that all workers engaged through intermediaries meet the obligations outlined by HM Revenue & Customs (HMRC).
It is therefore crucial for companies operating in this area to assess every potential engagement carefully in order to avoid any potential pitfalls associated with non-compliance. Companies found not meeting their obligations may face heavy penalties imposed by HMRC, including fines or even criminal prosecution.
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What To Do If Your Contractors Fall Within IR35
IR35 is a piece of legislation which has the potential to drastically alter how businesses operate. It was introduced in 2000 to help combat tax avoidance by contractors and freelancers, who have traditionally been able to take advantage of loopholes to reduce their tax bills.
Under IR35, these self-employed individuals are now expected to pay income taxes more akin to those of an employee. This can be devastating for businesses that rely heavily on contract workers, as it could lead to a substantial increase in costs associated with hiring them.
The implications of IR35 should not be taken lightly; any business that uses contractors must assess whether they fall within its scope or risk facing serious financial consequences. Companies need to determine if their contracts agreeably resemble employment agreements, as this will dictate whether or not they are subject to the regulations imposed by IR35.
Businesses should also review all existing arrangements with contractors and make sure that these comply with the rules set out in the legislation. Failure to adhere to IR35 could mean hefty fines and backdated payments for companies found guilty of non-compliance.
As such, it is essential that organisations undertake thorough investigations into their contractual obligations and exercise due diligence when working with contractor personnel. In light of this, company directors would do well to seek professional advice where necessary regarding matters relating to compliance under IR35 before making any decisions about engaging with contract workers.
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Potential Penalties For Non-Compliance
IR35 is a set of UK tax regulations that apply to those who provide services through intermediaries, such as limited companies. The purpose of the legislation is to ensure that workers who would usually be considered an employee for taxation purposes are not able to avoid paying their taxes by operating through a company structure.
Businesses have a responsibility to assess whether IR35 applies and what it means for them in terms of payroll compliance and additional payments due under the rules.
Non-compliance with these regulations can result in significant financial penalties for businesses, which include:
- Payment of unpaid taxes;
- Penalties based on the amount owed;
- Interest charges on any outstanding amounts; and
- A potential criminal investigation if HM Revenue & Customs (HMRC) suspect deliberate non-compliance or fraud.
These stringent measures serve as deterrents against non-compliance but also underscore how important it is for businesses to take proactive steps towards understanding IR35 taxes and its implications in order to protect themselves from financial losses and other consequences associated with the misclassification of employees as contractors.
Companies need to understand how this legislation affects their business operations, review existing contracts, discuss issues with affected individuals, and properly document decisions made regarding worker status classification in order to remain compliant with IR35 requirements.
Ignoring these obligations could lead to costly penalties down the line.
Bottom Line
IR35 is a complicated piece of legislation that requires businesses to assess their contractors’ employment status correctly. It has been estimated that up to 70% of contractors are incorrectly assessed as self-employed when they should actually be classified as employees and subject to PAYE tax deductions.
Non-compliance with IR35 can result in hefty penalties, so it’s important for businesses to ensure they understand the rules and properly assess their contractors’ statuses. Taking steps such as talking to your accountant or legal advisor about any grey areas can help you remain compliant and avoid costly errors.
If you need assistance navigating IR35 regulations, Re Hiring can help. Our team of experts can provide guidance and support to ensure that your business is fully compliant. Contact us today to learn more about how we can help you manage your contractor workforce and avoid any legal complications.
Remember, staying compliant with IR35 is crucial for your business’s success, so don’t hesitate to reach out to us for assistance.