IR35 Status Determination Statement Template UK
Navigating IR35 compliance is one of the most pressing challenges facing UK contractors and the businesses that engage them. Since the off-payroll working reforms extended Chapter 10 of the Income Tax (Earnings and Pensions) Act 2003 to the private sector in April 2021, medium and large engagers have been legally required to issue a Status Determination Statement (SDS) before a contractor begins work. Without a properly drafted SDS, both the fee-payer and the end client risk significant HMRC tax liability, penalties, and interest charges. A compliant SDS must state the IR35 determination, provide reasoned conclusions, and include a client-disagreement process. Getting this document right protects all parties in the supply chain. Generate a legally grounded IR35 Status Determination Statement template now and stay confidently compliant.
Generate your IR35 Agreement free →Key clauses in a IR35 Agreement
IR35 Status Determination
This clause states the engager's concluded determination of whether the contractor falls inside or outside IR35 under Chapter 10 of ITEPA 2003, along with the reasoned basis for that conclusion. Without a clear, written determination, the engager cannot transfer the deemed-employer liability down the supply chain to the fee-payer, leaving the client exposed to unpaid income tax and National Insurance Contributions.
Disagreement and Review Process
Under section 61NA of ITEPA 2003, engagers are legally required to provide a process by which the contractor or their PSC can formally disagree with the SDS determination and receive a reasoned response within 45 days. This clause documents that process, protecting the engager from HMRC challenge and ensuring the contractor's statutory right to contest the decision is upheld.
Supply Chain Notification Obligation
This clause confirms the engager's duty to pass the SDS to every party in the labour supply chain, including the staffing agency and the fee-payer, as required by Chapter 10 of ITEPA 2003. Failure to distribute the SDS correctly means the liability for operating PAYE and paying employer NICs remains with the end client rather than passing to the appropriate party.
Generate your IR35 Agreement in 2 minutes
AI-powered. Jurisdiction-aware. No account required for your first contract.
Generate free →Frequently asked questions
Who is legally required to issue an IR35 Status Determination Statement?
Medium and large private sector companies engaging contractors through a Personal Service Company have been required to issue an SDS since April 2021 under Chapter 10 of ITEPA 2003. Small companies, as defined by the Companies Act 2006 criteria, are currently exempt and the responsibility for self-assessment remains with the contractor's PSC. Public sector bodies have held this obligation since April 2017 under Chapter 10.
What happens if an engager issues an SDS without giving reasons for the determination?
HMRC's position is that an SDS lacking reasoned conclusions is not a valid SDS under section 61NA of ITEPA 2003, meaning the engager cannot transfer the deemed-employer liability to the fee-payer in the supply chain. This exposes the end client directly to PAYE and National Insurance liabilities, plus potential interest and penalties. HMRC's Check Employment Status for Tax tool can help evidence the reasoning behind a determination.
Can a contractor challenge an inside-IR35 determination from the engager?
Yes. Under section 61NA of ITEPA 2003, a contractor or their PSC has a statutory right to formally dispute an SDS determination, and the engager must respond with a reasoned decision within 45 days of receiving the representation. If the engager fails to respond within that timeframe, the liability for PAYE and NICs reverts to the client rather than the fee-payer. Contractors should submit their disagreement in writing and retain copies for their records.
The information on this page is for general informational purposes only and does not constitute legal advice. Contracto generates AI-assisted contract templates — they are not a substitute for advice from a qualified solicitor. For high-value or complex engagements, always seek independent legal review.