Originally posted on: 14 October 2024
Updated on: 11 November 2025
Over the past few weeks, we have received several enquiries from UK-based contractors intending to take up contract work with overseas clients. A common question is how this is impacted by IR35 and the off-payroll working rules.
If you are a UK-based limited company contractor working with overseas clients, the same IR35 rules apply as for contractors who work with small businesses in the UK.
So in today’s blog, we cover how IR35 impacts contractors who work with either (a) overseas clients or (b) small UK businesses that qualify for the IR35 small company exemption. In terms of IR35, the same considerations apply to both scenarios.
Key Takeaways
- IR35 is a UK tax legislation that affects contractors by determining their tax obligations based on whether they work similarly to employees or not.
- The small business exemption relieves qualifying small companies from the responsibility of assessing the IR35 status of their contractors, simplifying compliance.
- Contractors working with overseas clients fall into the same rules as those working with UK small businesses, if the overseas client does not possess a permanent establishment in the UK, reducing tax complications.
What is IR35?
IR35, formally known as the Intermediaries Legislation, is a set of tax rules introduced by the UK government to combat tax avoidance by individuals who supply their services to clients via an intermediary, such as a limited company, but who would otherwise be considered employees if the intermediary was not used. For contractors and freelancers, understanding IR35 determines whether they are subject to the same tax and National Insurance Contributions (NICs) as employees.
For contractors, falling inside IR35 means higher tax liabilities and less take-home pay. Non-compliance with IR35 can lead to significant financial and legal repercussions, making it essential to grasp its intricacies.
Overview of the Small Business Exemption
The small business exemption within the IR35 framework serves as a crucial relief for many small companies and contractors. This exemption means that if a business qualifies as a small company, it is not responsible for determining the IR35 status of its contractors; instead, the contractors themselves must assess their status. This shift can significantly reduce the administrative burden on small businesses.
For a business to qualify for the small companies exemption, it must meet at least two of the following criteria for two consecutive financial years: an annual turnover of no more than £10.2 million, a balance sheet total not exceeding £5.1 million, and an average of 50 or fewer employees. These criteria ensure that only genuinely small businesses benefit from the small company exemption, preventing larger entities from exploiting this relief.
Determining if your business qualifies for this exemption can help avoid the complexities of IR35 compliance, allowing you to focus on growth and operations.
How IR35 Impacts UK Contractors
IR35 has a significant impact on UK contractors, particularly those working through limited companies as they must navigate the complexities of the off-payroll rules. The legislation aims to close tax loopholes by ensuring that individuals working in a manner akin to employment pay similar taxes to those in traditional employment. For contractors, this translates into a need to thoroughly understand their employment status and the IR35 rules to avoid unexpected tax liabilities.
Assessing whether a contractor falls inside or outside IR35 involves reviewing their working arrangements against specific criteria. Non-compliance can result in hefty penalties and backdated tax payments.
IR35 in Brief
IR35, or the Intermediaries Legislation, aims to prevent tax avoidance by individuals providing services through intermediaries while essentially working as employees. It mainly affects contractors operating through limited companies and ensures they pay the same taxes as regular employees if their work arrangement resembles employment.
Since April 6, 2021, new off-payroll working rules have been implemented for the private sector, but small businesses are generally exempt. The exemption shifts the responsibility for determining IR35 status back to the contractors.
“…the service has been fabulous.”
Ah Mike, we think you’re pretty fabulous too!
Determining Employment Status
Determining a contractor’s employment status under IR35 involves several key factors, including the level of Control, the contractor’s right to provide a Substitute, and the Mutuality of Obligation (MoO) between the parties. However, recent rulings have shifted how these factors are interpreted, making it more difficult to rely on them for proving an outside IR35 status.
Control refers to the influence the client has over what, how, and when the contractor performs their work. Recent rulings, such as the PGMOL case, suggest that control does not need to be direct or constant; it can be inferred through broader frameworks, such as procedures or expectations set by the client. This means that even if contractors appear to have independence during day-to-day work, they may still fall inside IR35 if the client has the right to dictate or assess the general manner of their performance.
Substitution rights, often considered a strong defence, are also less definitive. While having the contractual right to send a substitute is favourable, case law now indicates that this clause alone may not be sufficient. HMRC and the courts are increasingly looking at whether substitution is realistically exercised, rather than just stated in the contract.
Finally, Mutuality of Obligation—the concept that both parties must have an ongoing commitment to provide and accept work—has become a much weaker factor for determining IR35 status. The recent Supreme Court ruling in HMRC v PGMOL confirmed that MoO is inherent in any contract for work, making it less useful as a defence. Simply agreeing to perform work for a client is now considered enough to establish MoO, significantly reducing its effectiveness in keeping a contractor outside IR35.
Given these developments, contractors must take a holistic approach to their IR35 status. It’s no longer sufficient to rely on contract terms alone. Instead, working practices, the actual business relationship, and broader factors like being “in business on your own account” will be crucial in defending against an inside IR35 determination. Staying informed of legal changes and ensuring that both contract terms and working practices align is essential for IR35 compliance.
Why the Small Business Exemption Matters for Contractors
The small business exemption benefits contractors by allowing them to avoid stringent IR35 regulations when working for qualifying small businesses in the private sector. It reduces the tax burden, making financial management simpler and more predictable.
For contractors, working with small businesses that meet the small companies criteria can be a significant relief. The exemption means that instead of the client determining the IR35 status under the off-payroll rules, the limited company contractor retains this responsibility, allowing for more control over their tax affairs.
The Small Business Exemption in Detail
Delving deeper into the small business exemption reveals its specific criteria and benefits. The exemption is designed to alleviate the compliance burden on small businesses and contractors, making it easier for them to navigate the complex landscape of IR35.
Criteria for the Small Business Exemption
To qualify as a small business under UK law, an entity must meet two of the following criteria for two consecutive financial years: an annual turnover of no more than £10.2 million, a balance sheet total not exceeding £5.1 million, or an average of 50 employees or fewer. These criteria ensure that only genuinely small businesses benefit from the exemption.
A business is classified as small if it meets these criteria, providing relief from the administrative burden of IR35 compliance. If a business exceeds these criteria, it must apply the IR35 rules from the tax year after its second financial year filing date.
How Contractors Benefit from This Exemption
The small business exemption reduces IR35 compliance obligations for contractors. When working with small businesses, contractors are responsible for determining their IR35 status, simplifying financial management and reducing potential tax liabilities.
The exemption means that contractors working with small businesses are not liable for IR35 compliance; instead, the responsibility lies with their intermediary, providing a clearer and more manageable tax situation.
Working with Overseas Clients
When it comes to IR35, many contractors assume that working with overseas clients shields them from the same scrutiny and rules as working with UK-based companies. However, this is a common misconception. Even if your client is based outside the UK, IR35 rules still apply to you as a UK-based contractor. Importantly though, you ARE shielded from the off-payroll working rules.
While overseas clients are exempt from determining your IR35 status, the responsibility for compliance shifts to you. This means you need to ensure that your working relationship and contract meet the requirements to be considered outside IR35. Failing to do so could result in unexpected tax liabilities and penalties from HMRC. In this section, we’ll explore the unique considerations when working with overseas clients, including how to self-assess your IR35 status and what steps you can take to remain compliant.
How the Exemption Applies to Overseas Businesses
The IR35 small business exemption, which relieves smaller UK-based clients from the responsibility of determining a contractor’s IR35 status, has implications for contractors working with overseas clients as well. For contractors, the rules for overseas businesses mirror those for small UK companies, meaning the burden of IR35 compliance falls solely on the contractor.
If your client is entirely based overseas and has no UK presence, they are not obligated to assess your employment status for IR35 purposes. In these cases, it becomes your responsibility to determine whether you fall inside or outside IR35. This can be advantageous, as it gives you more control over your IR35 status, but it also carries risks if not managed correctly.
Even though the exemption shifts the compliance burden away from overseas businesses, you must still ensure that your working practices, contract terms, and other IR35 factors—such as control, substitution, and mutuality of obligation—support an outside IR35 determination. HMRC may still scrutinize your status, so it’s important to be proactive in keeping good records and structuring your engagements properly.
Roles and Responsibilities of the Overseas Client
For clients based entirely outside the UK with no UK presence, the situation is unlike that of medium or large UK-based businesses. Overseas clients are not required to determine your IR35 status or provide a Status Determination Statement (SDS). This exemption from IR35 compliance duties applies because they do not fall under UK tax jurisdiction in the same way as domestic companies.
This lack of obligation can be beneficial to overseas clients, as they are free from the administrative burden and potential liabilities related to IR35. However, it also means that contractors need to be vigilant in managing their own IR35 compliance, as the responsibility to assess and declare their status shifts entirely to them.
The Contractor’s Role and Responsibility
When dealing with an overseas client, the responsibility for IR35 compliance moves entirely to the contractor. Unlike medium or large UK based clients, overseas businesses do not have to determine the contractor’s IR35 status or provide a Status Determination Statement (SDS). So, the contractor must take proactive steps to ensure they are outside IR35 and compliant with UK tax laws.
Here are the key responsibilities contractors must manage:
- Self-Assess IR35 Status: It’s up to the contractor to decide if their working arrangement with the overseas client is inside or outside IR35. This involves reviewing factors such as control, substitution rights and mutuality of obligation. Contractors must ensure the contract and working practices genuinely reflect an independent contractor relationship, with no significant control from the client.
- Maintain Accurate Records and Documentation: Contractors must keep records of their contracts, invoices and communications with the client. Any evidence of the nature of the working relationship (e.g. control over how and when the work is done, ability to substitute and financial risk) should be documented in case HMRC challenge the contractor’s IR35 status.
- Align Contracts with Working Practices: It’s crucial that the contractor’s actual day to day working conditions match the terms of the contract. Even if the contract says the contractor is outside IR35, if the working practices suggest otherwise (e.g. the client has significant control) HMRC may deem the contractor to be inside IR35.
- Review Contracts Regularly: Contractors should review their contracts with each new engagement to ensure they are IR35 compliant. If the scope of work, duration or how the work is done changes, this should be reflected in an updated contract that still supports an outside IR35 status.
- Seek Professional Advice: Due to the complexity of IR35 and working with overseas clients, contractors should consider seeking professional advice from an accountant or tax advisor familiar with IR35 legislation. A professional can review contracts and working arrangements to ensure compliance and give guidance on how to protect against HMRC challenges.
Be proactive and you will not fall inside IR35 when working with overseas clients. Being “in business on your own account” is key for contractors to stay outside IR35.
Practical Tips for Contractors
Navigating the IR35 landscape can be challenging, but several practical tips can help contractors ensure compliance and optimize their tax position. Knowing the criteria for the small company exemption helps businesses ensure compliance.
Contractors should ensure their end-client meets the criteria for the small business exemption to avoid IR35 implications. Regular assessments and clear communication with clients can prevent potential issues.
Assessing Your Client’s Status
Clients must evaluate their status regularly to confirm ongoing eligibility for the small business exemption applies. A business qualifies as a small entity if it meets specific criteria regarding turnover, balance sheet total, and number of employees for two consecutive years.
Requesting confirmation from clients about their status and ensuring they meet these criteria can help contractors avoid IR35 complications. This proactive approach can simplify compliance and tax management.
When working with overseas clients this is a bit simpler, you just need to ensure they remain with a UK presence.
Keeping Your Tax and Compliance in Check
Accurate records are essential for demonstrating compliance with the small company exemption criteria. Contractors should keep detailed documentation of their contracts, invoices, and communication with clients to provide evidence if required by HMRC. Regularly reviewing contracts and working arrangements helps stay compliant with IR35 and avoid unexpected tax liabilities.
Additionally, conducting regular assessments of your financial status and tax obligations can prevent issues down the line. Staying informed about changes in tax rules and seeking professional advice when necessary can further enhance your compliance strategy and ensure you adhere to the relevant tax regulations.
When to Seek Professional Help
Consider seeking professional assistance whenever uncertainties about IR35 status arise or when entering contracts with intricate tax considerations. Engaging with professionals provides peace of mind and helps manage tax and compliance responsibilities effectively. We have a list of IR35 specialists that our clients can use to help in this area.
Protecting Against HMRC Investigations
Protecting yourself against HMRC investigations is important for all limited company contractors, given the potential financial repercussions. There are some IR35 insurance products that are designed to cover contractors against the costs associated with an IR35 investigation, including taxes and penalties. This type of insurance can shield you from the unexpected financial burden of an investigation.
Legal Expenses Insurance can also be beneficial, covering various legal costs related to IR35 investigations and contract disputes. Investing in these insurance options helps contractors safeguard their financial stability and prepare for any challenges from HMRC inquiries.
Summary
In the past few weeks, we’ve received multiple queries from UK-based contractors about how IR35 affects those working with overseas clients. A common concern is whether the off-payroll working rules apply in these situations. The truth is, if you’re a UK-based contractor working with an overseas client, the same IR35 rules apply as for those working with small UK businesses.
In this blog, we’ve explored the impact of IR35 on contractors who engage with both overseas clients and small UK businesses that qualify for the small business exemption. The key takeaway is that the burden of compliance typically shifts to the contractor in both cases, meaning contractors need to self-assess their IR35 status carefully to avoid unexpected tax liabilities. From understanding how control, substitution, and mutuality of obligation are interpreted by HMRC, to the roles and responsibilities of both the contractor and overseas clients, this guide offers essential insights for contractors looking to remain IR35 compliant.
“…the service has been fabulous.”
Ah Mike, we think you’re pretty fabulous too!
Frequently Asked Questions
What is IR35 and who does it affect?
IR35 is UK tax legislation designed to prevent tax avoidance by individuals who work through an intermediary, such as a personal service company, but who would otherwise be considered employees if the intermediary didn’t exist.
What are the criteria for a business to qualify for the small company exemption?
For a business to qualify for the small company exemption under IR35, it must meet at least two of the following criteria for two consecutive financial years: an annual turnover of no more than £10.2 million, a balance sheet total not exceeding £5.1 million, and an average of 50 or fewer employees.
How does the small business exemption benefit contractors?
The small business exemption benefits contractors by shifting the responsibility for determining IR35 status away from the client and onto the contractor. This gives contractors more control over their own IR35 assessment, allowing them to manage their tax affairs more flexibly and reducing the risk of being incorrectly classified as “inside IR35” by a client.
Do IR35 rules apply to overseas clients?
Yes, IR35 rules still apply to UK-based contractors working with overseas clients. However, if the overseas client has no UK presence or permanent establishment, they are exempt from determining the contractor’s IR35 status. In this case, the responsibility for assessing whether the contractor falls inside or outside IR35 shifts entirely to the contractor.