Sample Consulting Agreement
The consulting agreement clauses that protect your fees, your timeline, and your liability.
Change control, suspension rights, deemed acceptance, liability caps — the clauses that separate a professional consulting agreement from a client-drafted engagement letter. With real contract language and plain-English annotation.
Six critical clauses — annotated
Change Control — What happens when the client wants more
Contract language
Any request by Client to alter the scope, deliverables, creative direction, or timeline set out in this Agreement must be submitted to Consultant in writing. Consultant shall respond within 5 business days with a written Change Order specifying: (a) the additional work required; (b) the additional fee; and (c) any impact on the agreed timeline. No additional work shall commence, and no timeline shall be adjusted, until both parties have signed the Change Order in writing. All executed Change Orders form part of this Agreement.
Scope creep without a change control process is the most common reason consulting projects go over-budget and under-compensated. This clause creates a paper trail for every change: what was requested, what it costs, and what it does to the timeline. The "no additional work commences until signed" language is critical — without it, clients can verbally request work and dispute whether it was ever agreed.
What "no change control" looks like in practice: a 3-month engagement that runs for 5 months because every meeting generates new requirements, none of which are priced.
Suspension for Non-Payment — Your right to stop work
Contract language
If Client fails to pay any undisputed invoice within 14 days of its due date, Consultant may, on 7 days' written notice to Client, suspend all Services under this Agreement until the overdue amount (including accrued interest) is paid in full. Any milestones, deadlines, or project timelines affected by such a suspension shall be extended by the duration of the suspension period plus a reasonable re-mobilisation period. Suspension under this clause does not constitute a breach of this Agreement by Consultant.
Without this clause, you have no contractual right to stop work when invoices go unpaid. Stopping work without a contractual basis could itself be treated as a breach. This clause gives you explicit authority to suspend — and critically, extends all deadlines automatically so you can't be penalised for delays caused by the client's non-payment.
Key phrase: "undisputed invoice." The suspension right applies only to invoices the client hasn't formally contested. If they raise a dispute, you can't suspend on that invoice — but you can on all other undisputed amounts due.
Acceptance & Sign-Off — Deemed acceptance after 10 days
Contract language
Upon delivery of each Deliverable, Client shall have 10 business days to review the Deliverable and either: (a) provide written acceptance; or (b) provide written notice of specific defects or non-conformities requiring correction, with sufficient detail for Consultant to understand and address them. If Client does not provide either acceptance or written notice of defects within 10 business days of delivery, the Deliverable shall be deemed accepted. Acceptance may not be withheld unreasonably or on grounds other than material non-conformity with the agreed specification.
"Deemed acceptance" clauses are one of the most useful tools in a consultant's contract. Without them, a client can leave deliverables in review limbo indefinitely — blocking your final payment while technically not rejecting your work. This clause creates a deadline after which the work is contractually accepted, triggering the associated payment obligation. 10 business days is the standard commercial review window.
Note: "acceptance may not be withheld unreasonably" is the standard. If a client withholds acceptance because of personal preference rather than a material defect in the specification, that's an unreasonable withholding and can be challenged.
Liability Cap — Limiting your exposure
Contract language
Consultant's total aggregate liability to Client under or in connection with this Agreement, whether arising in contract, tort (including negligence), breach of statutory duty, or otherwise, shall not exceed an amount equal to two times (2×) the total fees paid by Client to Consultant in the twelve (12) months immediately preceding the event giving rise to the claim. In no event shall either party be liable to the other for any indirect, special, consequential, exemplary, or punitive damages, including any loss of revenue, profit, business opportunity, or goodwill, even if advised of the possibility of such loss.
Without a liability cap, a consultant on a £10,000 engagement could theoretically be sued for £10 million in consequential losses if a piece of advice contributed to a business decision that went wrong. The 2× fees cap limits that exposure to £20,000 — a proportionate risk for a £10,000 project. The consequential loss exclusion prevents claims for downstream effects (lost profits, reputational damage) that bear no relationship to what you were paid to do.
UK-specific note: Liability caps and consequential loss exclusions are subject to the Unfair Contract Terms Act 1977 and must be reasonable. 2× fees is generally considered reasonable for commercial B2B engagements.
Independent Contractor Status — Avoiding implied employment
Contract language
Consultant is engaged as an independent contractor. Nothing in this Agreement shall be construed to create an employment relationship, agency, partnership, or joint venture between the parties. Consultant is responsible for all tax liabilities, National Insurance contributions, and professional insurance obligations arising from this engagement. Client shall have no obligation to provide Consultant with any employment benefits, holiday pay, sick pay, or other entitlements associated with employment. Consultant controls the method, manner, and means by which the Services are performed, subject only to the requirement to deliver the agreed Deliverables.
This clause does two things: it defines the legal relationship (contractor, not employee) and gives Consultant control over working methods. The "controls the method, manner, and means" language is directly relevant to IR35 — HMRC's control test asks who decides how, when, and where work is done. If the contract says the client controls all of this, it's a strong indicator of inside-IR35 status. This version correctly places that control with the consultant.
IR35 note: A well-drafted independent contractor clause is necessary but not sufficient for outside-IR35 status. It must reflect the real working relationship. If the consultant attends the client's office 5 days a week under direction, the contract won't override the reality.
GDPR / Data Protection — When client data flows through your work
Contract language
To the extent Consultant processes Personal Data (as defined under the UK GDPR and the Data Protection Act 2018) on behalf of Client in connection with the Services, Consultant shall: (a) process such Personal Data only on documented instructions from Client; (b) implement appropriate technical and organisational measures to protect the Personal Data; (c) not transfer Personal Data outside the UK without appropriate safeguards; (d) assist Client in responding to data subject rights requests; (e) delete or return all Personal Data on termination of this Agreement; and (f) notify Client without undue delay in the event of a Personal Data breach affecting data processed under this Agreement.
If your consulting work involves accessing client databases, analysing customer data, or building systems that process personal information, you are a data processor under UK GDPR — and you have legal obligations regardless of whether your contract mentions them. This clause makes those obligations explicit and protects both parties. Without it, a data breach involving data you processed could expose both you and the client to ICO enforcement action.
Check: Does your work involve any customer lists, employee records, financial data, or health information? If yes, you need this clause — and potentially a formal Data Processing Agreement as a separate schedule.
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Change control, suspension rights, deemed acceptance, liability cap, IR35-aware contractor status, and UK GDPR compliance — included by default. Jurisdiction-aware. Ready to sign in 60 seconds.
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