Online Contract Generator UK | Instant Legal Agreements
Without a properly drafted consulting agreement, UK consultants risk disputes over scope creep, delayed payments, and costly IR35 misclassification by HMRC. A robust consulting contract establishes clear boundaries between the consultant's independent status and an employment relationship, which is governed under Chapter 10 of the Income Tax (Earnings and Pensions) Act 2003 for off-payroll working rules. It also protects your right to pursue overdue invoices under the Late Payment of Commercial Debts Act 1998, including statutory interest at 8% above base rate. Whether you are a sole trader advising a startup or a limited company engaged by a corporate client, having watertight written terms protects both parties from financial and legal exposure. Generate your consulting contract instantly using our online contract generator today.
Generate your Consulting Agreement free →Key clauses in a Consulting Agreement
IR35 Status and Independence
This clause defines the consultant as an independent contractor rather than an employee or worker, setting out substitution rights, control limitations, and mutual obligation boundaries to support a genuine outside-IR35 determination. Under Chapter 10 of ITEPA 2003, HMRC assesses the true nature of the working relationship, so explicit contractual language reflecting real working practices is essential to reduce off-payroll tax liability.
Payment Terms and Late Fees
This clause specifies invoice submission dates, agreed payment deadlines, and the automatic right to charge statutory interest on overdue amounts under the Late Payment of Commercial Debts Act 1998. Consultants are entitled to claim interest at 8% over the Bank of England base rate plus a fixed debt recovery fee of between £40 and £100 depending on the invoice value, making these terms a powerful deterrent against late payment.
Intellectual Property Ownership
This clause determines whether intellectual property created during the engagement belongs to the consultant or is assigned to the client upon full payment, preventing costly post-project disputes. Under the Copyright, Designs and Patents Act 1988, IP created by a self-employed consultant defaults to the creator rather than the commissioning party, so an explicit assignment or licence clause is necessary if the client requires ownership of deliverables.
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Generate free →Frequently asked questions
Does a consulting contract protect me from an IR35 investigation?
A well-drafted consulting contract is an important piece of evidence in any IR35 review by HMRC, but it must accurately reflect how the engagement operates in practice. HMRC assesses the real working relationship under Chapter 10 of ITEPA 2003, considering factors such as substitution rights, control, and mutuality of obligation alongside the written contract. Ensuring your contract genuinely mirrors your day-to-day working arrangements significantly strengthens an outside-IR35 position.
Can I charge interest if a client pays my consulting invoice late?
Yes, UK consultants have a statutory right to charge interest on late business-to-business payments under the Late Payment of Commercial Debts Act 1998 without needing to include a specific clause, though including one reinforces your position. The interest rate is fixed at 8% per annum above the Bank of England base rate, and you can also claim a debt recovery fee between £40 and £100 depending on the outstanding amount. Payment terms should be clearly stated on every invoice to establish when the debt becomes overdue.
Should my consulting contract include a confidentiality clause?
Yes, a confidentiality or non-disclosure clause is strongly recommended in consulting contracts because consultants routinely access sensitive business information, client data, and commercially valuable strategies. Without a written confidentiality obligation, enforcement relies on the equitable duty of confidence under common law, which is harder and more expensive to prove in court. A clear contractual clause defines exactly what information is protected, the duration of the obligation, and the remedies available if it is breached.
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.