Contractor Contract Template UK for Startups | Hire With Your Terms
Startups hiring contractors without a clear written agreement risk costly disputes over ownership of work, payment terms, and HMRC classification. A well-drafted contractor contract establishes who owns intellectual property, when invoices must be paid, and crucially, confirms the genuine self-employed nature of the engagement — a distinction governed by Chapter 10 of the Income Tax (Earnings and Pensions) Act 2003, commonly known as IR35. For startups operating outside the public sector, the responsibility for IR35 status currently remains with the contractor, but a properly worded contract supports the correct determination for both parties. Late payment protections under the Late Payment of Commercial Debts Act 1998 also apply, entitling contractors to statutory interest on overdue invoices. Protect your startup and your contractors from day one — generate your contractor contract now.
Generate your Freelance Contract free →Key clauses in a Freelance Contract
Intellectual Property Assignment
This clause confirms that all deliverables, code, designs, or creative work produced by the contractor are assigned to the startup upon full payment, preventing future ownership disputes. Under the Copyright, Designs and Patents Act 1988, copyright in commissioned work does not automatically transfer to the client, making an explicit written assignment essential in every UK contractor agreement.
IR35 and Employment Status
This clause sets out the self-employed nature of the engagement, confirming the contractor is not subject to the startup's direction and control in a way that would constitute employment under UK tax law. A clearly worded status clause supports the contractor's position as genuinely outside IR35 under Chapter 10 of the Income Tax (Earnings and Pensions) Act 2003, reducing risk for both parties if HMRC investigates.
Payment Terms and Late Fees
This clause specifies the agreed invoice schedule, payment due dates, and the consequences of late payment, including statutory interest at 8% above the Bank of England base rate. These rights are automatically conferred by the Late Payment of Commercial Debts Act 1998, but including them explicitly in the contract ensures both parties understand their obligations and discourages delayed payments common in early-stage startup environments.
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Generate free →Frequently asked questions
Does IR35 apply to my startup if I'm hiring a contractor?
If your startup is a small company — meeting at least two of the criteria under the Companies Act 2006 for small business classification — the IR35 off-payroll working rules introduced in April 2021 do not apply to you, and the responsibility for determining IR35 status remains with the contractor. However, your contract should still reflect a genuine self-employed relationship, as HMRC can examine the actual working arrangements regardless of what the contract says. Ensuring your contractor has genuine control over how and when they work is the strongest safeguard.
Can I use a contractor contract to protect my startup's confidential information?
Yes — a well-drafted contractor contract should include a confidentiality clause that explicitly prohibits the contractor from disclosing trade secrets, business plans, client data, or technical information both during and after the engagement. While UK common law provides some implied duty of confidentiality, a written clause is far easier to enforce and should specify the duration of the obligation and any permitted disclosures. For startups handling personal data, the clause should also reference compliance with the UK GDPR and the Data Protection Act 2018.
What happens if a contractor misses a deadline — can I withhold payment?
Withholding payment for missed deadlines is only enforceable if the contract clearly links payment to specific deliverable milestones or includes a breach remedy clause permitting deduction. Under the Late Payment of Commercial Debts Act 1998, contractors retain the right to statutory interest on any amounts that become due, so blanket payment refusals without a contractual basis can expose your startup to a legal claim. The safest approach is to include a clause specifying remedies for late or deficient delivery, such as a right to request revisions before the payment trigger is met.
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.