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If you engage someone on a self-employed basis to deliver specialist work, or you are the specialist being engaged, the contract sitting underneath that arrangement matters far more than most people realise. A Consultancy Agreement sets out how the relationship actually operates day to day: who does what, who owns what, how money moves, and what happens when things go sideways.
Getting it right protects both sides from disputes over scope, payment, confidentiality and intellectual property, and it helps demonstrate that the consultant is genuinely self-employed rather than a disguised employee. This guide walks through the purpose of the agreement, when you would use one, the clauses that really earn their place, and the questions that come up most often. It is written for UK use and reflects how these contracts are typically structured in England and Wales.
What this document is
A Consultancy Agreement is a written contract between a client and an independent contractor who is providing specialist services on a self-employed basis. Rather than hiring someone as an employee, the client pays the consultant for defined deliverables or ongoing expertise, and the consultant runs their own business, pays their own tax and National Insurance, and decides how the work gets done.
The agreement records the commercial deal and the legal boundaries around it. It usually covers the services to be provided, the fees and payment timings, how long the engagement runs, confidentiality, ownership of any work product, liability, and how either party can bring things to an end.
A well-drafted version also deals with the practical realities: who pays expenses, whether the consultant can send a substitute, what happens to client data, and whether the consultant can work for competitors during or after the engagement. For tax and employment-status purposes, the drafting itself can matter, because HMRC and the courts look at the true nature of the relationship, not just the label on the document.
How to use this document
Work out what you actually need. Before drafting anything, get clear on the scope. Is this a one-off project with a fixed deliverable, a retainer for ongoing advice, or time-based input on an as-needed basis? The clearer the brief, the easier every other clause becomes to write and the less room there is for later disagreement about what was promised.
Agree the commercial terms. Settle the fee structure (fixed fee, day rate, hourly, or milestone-based), how often invoices will be issued, the payment window, and whether expenses are recoverable. Decide whether VAT applies, how late payment is handled, and whether any deposit or upfront payment is needed before work begins.
Draft the key protections. Put in writing the confidentiality obligations on both sides, who will own any intellectual property created during the engagement, and any restrictions on the consultant working for direct competitors. Include sensible limits on liability and make sure the termination clause sets out proper notice periods and what happens to fees owed on exit.
Pressure-test the employment-status position. HMRC cares whether a consultant is genuinely self-employed or effectively an employee in disguise. Reflect the real working arrangement: the right to send a substitute, control over how work is done, the consultant using their own equipment, and the absence of employee-style benefits. Label alone will not save a weak arrangement.
Review, sign and keep it live. Both parties should read the whole agreement before signing, not just the commercial terms. Keep a signed copy accessible, and revisit the document if the scope changes significantly, if new work streams are added, or if the engagement rolls on well beyond its original term.
Template · England & Wales
Consultancy agreement template
This is a contract for a self-employed consultant working in any industry and on a project of any size.
Templates are provided by Net Lawman. We may receive a commission at no extra cost to you.
Common questions
Q What is the difference between a Consultancy Agreement and an employment contract?
An employment contract creates an employer-employee relationship, with PAYE tax, holiday pay, sick pay and statutory employment rights. A Consultancy Agreement engages someone as a self-employed contractor running their own business, responsible for their own tax and without employee rights. The practical working arrangement has to match the label, otherwise HMRC or a tribunal may look through the paperwork and reclassify the relationship.
Q Do I need a Consultancy Agreement for a short piece of work?
Even short engagements benefit from a written agreement. Disputes over scope, payment and ownership of work can arise on projects of any size, and a written contract is far easier to rely on than emails or verbal understandings. For very small pieces of work, a shorter letter-of-engagement style agreement can work, but the core terms (services, fees, confidentiality, IP) should still be covered in writing.
Q Who owns the work the consultant produces?
That depends entirely on what the agreement says. By default in UK law, a self-employed consultant generally owns the copyright in what they create, and the client gets a licence to use it. Most clients will want the agreement to assign intellectual property rights to them on creation or on payment. If ownership matters to you, the clause needs to say so clearly, because silence usually favours the consultant.
Q Can a consultant be restricted from working for competitors?
Yes, but restrictions have to be reasonable in scope, duration and geography to be enforceable. A narrow restriction protecting specific client relationships or confidential information during and shortly after the engagement is more likely to stand up than a broad ban on working in the same sector. Overly wide restrictions are often struck down by the courts, so proportionality matters.
Q How does IR35 affect Consultancy Agreements?
IR35 (the off-payroll working rules) looks at whether a consultant working through their own limited company is really operating like an employee of the client. The contract wording matters, but the actual working practices matter more. For medium and large clients in the private sector and public sector engagements, the client is typically responsible for assessing status. Getting this wrong can create significant tax liabilities.
Q How can either party end the agreement?
Termination usually happens in one of three ways: expiry at the end of a fixed term, termination on notice (commonly 30 or 60 days), or immediate termination for serious breach, insolvency or similar events. The clause should also say what happens to fees for work done up to the termination date, the return of confidential information, and which obligations (like confidentiality) survive the end of the engagement.
Q Does the consultant need their own insurance?
In many cases yes. Professional indemnity insurance is common where the consultant is giving advice or producing work that the client will rely on, and public liability insurance may be needed if the consultant is attending client premises. The agreement often requires the consultant to hold specified insurance at their own cost and to provide evidence of cover on request.
Get the paperwork right
Get the Consultant Contract For An Individual In Any Field template
Brad is on the roll of solicitors of England & Wales but does not hold a practising certificate and does not provide legal advice. LegalDocuments.co.uk is not a law firm and does not provide regulated legal advice.
This article is for general information only. It is a tool to help you find your way — not legal advice, and not a substitute for speaking to a qualified adviser about your situation.
