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contractor agreement review checklist uk

Contractor Agreement Review Checklist: What to Check Before You Sign

If you're about to sign a contractor agreement in the UK, this contractor agreement review checklist will help you catch the clauses that cause problems later. Contractor agreements vary wildly — some are fair, some are one-sided, and a few contain terms that could expose your business to serious liability or lock you into arrangements you didn't intend. The key areas to check include scope of work, payment terms, IP ownership, termination rights, confidentiality, and IR35 status indicators. Missing or vague clauses in any of these areas are where disputes start. This guide walks through what must-have clauses look like, what red flags to watch for, and when the agreement is complex enough that you should escalate to a solicitor. Whether you're a business engaging a contractor or a contractor reviewing terms before you sign, getting this right upfront saves significant time and money down the line.

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Why this matters

Most contractor agreement disputes don't start with bad intentions — they start with vague drafting. A scope of work that isn't specific enough, a payment clause that doesn't cover late fees, or an IP assignment that accidentally hands over work you thought you owned. UK businesses often sign contractor agreements quickly, especially when the working relationship already feels established. That's when the risk is highest. The agreement is the fallback when things go wrong, and if it's poorly drafted or heavily weighted against you, you're starting from a weak position. This checklist exists to slow that process down just enough to catch the issues that matter.

The Atornee approach

Atornee lets you upload your contractor agreement and get a structured review in minutes — flagging red flags, missing clauses, and plain-English explanations of what each section actually means for your business. It's not a replacement for a solicitor on complex or high-value engagements, and we're upfront about that. But for the majority of standard contractor agreements, Atornee gives you enough clarity to negotiate with confidence, ask the right questions, or decide whether you need specialist legal input before you commit. It's built specifically for UK businesses, so the analysis reflects UK contract law, IR35 considerations, and GDPR obligations — not generic advice.

What you get

A clause-by-clause breakdown of your contractor agreement highlighting what's missing, what's risky, and what's standard
Plain-English explanations of IP ownership, termination rights, and payment terms so you know exactly what you're agreeing to
Red flag identification for one-sided indemnity clauses, unlimited liability exposure, and restrictive post-termination obligations
IR35 status indicators flagged within the agreement so you can assess employment status risk before signing
Clear escalation guidance telling you when the agreement is complex enough to warrant a UK solicitor review

Before you sign checklist

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1. Confirm the scope of work is specific — vague deliverables are the most common source of contractor disputes
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2. Check who owns the IP created during the engagement — default UK law does not automatically assign contractor-created IP to the client
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3. Review payment terms including invoicing schedule, late payment provisions, and whether expenses are covered
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4. Identify any post-termination restrictions such as non-compete or non-solicitation clauses and assess whether they are proportionate
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5. Check the termination clause — look for notice periods, termination for convenience rights, and what happens to work in progress
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6. Assess confidentiality obligations on both sides and whether they are time-limited or perpetual
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7. Upload the agreement to Atornee for a structured review before you sign or counter-sign

FAQ

What should I look for when reviewing a contractor agreement in the UK?

Focus on six areas: scope of work, payment terms, IP ownership, confidentiality, termination rights, and liability caps. These are where most disputes originate. Also check for any clauses that could indicate employment status under IR35 rules, particularly if you are the business engaging the contractor.

Who owns the IP in a UK contractor agreement?

Under UK law, IP created by an independent contractor generally belongs to the contractor unless the agreement explicitly assigns it to the client. This surprises many businesses. If you are commissioning work and expect to own the output, make sure the agreement contains a clear IP assignment clause — not just a licence.

What are the biggest red flags in a contractor agreement?

Watch for unlimited liability clauses, one-sided termination rights that only benefit the other party, overly broad IP assignments that capture pre-existing work, perpetual confidentiality obligations with no carve-outs, and non-compete clauses that are geographically or temporally excessive. Any of these warrant a closer look or a negotiation.

Does a contractor agreement affect IR35 status?

The written agreement is one factor HMRC considers when assessing IR35 status, but it is not the only one. HMRC looks at the reality of the working arrangement, not just what the contract says. That said, a poorly drafted agreement that implies employment characteristics — such as exclusivity, personal service requirements, or control over how work is done — can increase IR35 risk.

When should I get a solicitor to review a contractor agreement instead of using AI?

Escalate to a solicitor if the contract value is high, if there are complex IP arrangements, if the liability exposure is significant, or if you are unsure about IR35 implications for your specific situation. Atornee is honest about this — it is well suited to standard contractor agreements but is not a substitute for specialist legal advice on high-stakes or unusual arrangements.

Can I use Atornee to review a contractor agreement sent to me by a client?

Yes. You can upload any contractor agreement — whether you drafted it or received it — and Atornee will review it from your perspective, flagging clauses that are unfavourable, missing, or ambiguous. It works for both businesses engaging contractors and contractors reviewing terms before they sign.

Related Atornee Guides

Cheap Contract Solicitor Alternative (UK)

Useful if you want to understand when AI review is sufficient versus when a solicitor adds value for contract work.

Cheap Solicitor for NDA (UK)

Relevant when your contractor engagement also requires a standalone confidentiality agreement alongside the main contract.

Atornee Use Cases

See how UK businesses across different roles use Atornee for contract review and legal document workflows.

External References

GOV.UK Business and Self-employed

Official UK government guidance on business operations including employment status and contractor obligations.

UK Legislation

Primary statutory reference for UK contract law including the Contracts (Rights of Third Parties) Act 1999 and related legislation.

ICO Guidance for Organisations

Relevant when contractor agreements involve data processing obligations under UK GDPR.

Trust & Verification Policy

Authored By

A

Atornee Editorial Team

UK Contract Research

Reviewed By

C

Compliance Review Desk

UK Business Legal Content QA

Last reviewed on 3/4/2026

"This content is based on analysis of common UK contractor agreement structures and the clause-level issues most frequently identified during document reviews on the Atornee platform. It reflects practical patterns observed across a range of UK business sectors and contractor engagement types."

References & Sources