Updated April 2026. Reflects English contract law, Sale of Goods Act 1979, Supply of Goods and Services Act 1982 and the Late Payment of Commercial Debts (Interest) Act 1998 as in force.
Most UK SMEs sign supplier contracts the same way: someone sends a PDF, you skim it, you sign. Six months later when something goes wrong, you discover the supplier capped their liability at the value of last month’s invoice and the small print said you waived consequential losses. By then it’s too late to renegotiate.
This guide covers the key clauses in a UK supplier agreement, the implied terms that apply whether you write them down or not, and the negotiating points worth pushing back on.
The implied terms you already have (whether you mention them or not)
Three statutes imply terms into UK B2B supply contracts automatically. They apply unless the contract clearly excludes them, and some can’t be excluded at all.
Sale of Goods Act 1979 (for goods). Implies that goods are of satisfactory quality, fit for any particular purpose made known, and match the description and any sample. Section 6 of the Unfair Contract Terms Act 1977 prevents you excluding satisfactory quality and fitness for purpose against a consumer; in B2B you can but only where reasonable.
Supply of Goods and Services Act 1982 (for services). Implies that services will be carried out with reasonable care and skill, within a reasonable time, and at a reasonable price (where not agreed). Reasonable care and skill is the bedrock — failure here is a breach regardless of what the contract says.
Late Payment of Commercial Debts (Interest) Act 1998. If your contract is silent on payment terms, this Act implies a 30-day payment period. Where payment is late, it implies a right to interest at 8% above Bank of England base rate plus a fixed sum (£40-£100 depending on debt size) recoverable per invoice. You can override the rate by contract but not below “substantial remedy.”
The practical effect: even a one-page handshake-equivalent contract gives you statutory rights. A well-drafted supplier agreement makes those rights explicit and fills in what the statutes don’t cover.
The clauses that matter most
Scope of supply
The most-fought-over clause in disputes. The contract should specify what’s being supplied, to what specification, in what quantity, by when. “Software development services” is too vague; “the deliverables described in Schedule 1” with Schedule 1 being a detailed specification is enforceable.
Pricing and payment
Fixed price, time-and-materials, or capped time-and-materials? When is payment due — 14, 30, 60 days? Are there milestone payments? Pre-payment? Late payment interest? Suspend service for non-payment? The contract should be specific.
Limitation of liability
The single biggest source of disputes. Standard structure: a cap (typically the higher of fees paid in the last 12 months or a fixed sum like £100,000) plus carve-outs for things you can’t or shouldn’t exclude — death and personal injury caused by negligence, fraud, breach of confidentiality, breach of IP indemnity. The Unfair Contract Terms Act 1977 requires the limitation to be reasonable; courts have struck down disproportionately low caps.
Intellectual property
Two questions: who owns the supplier’s pre-existing IP (almost always: they do, you get a licence), and who owns IP in the deliverables (negotiable — typically transferred to you on payment, though some suppliers retain ownership and licence to you). Get this wrong and you can pay for software you don’t own.
Warranties and indemnities
Warranties: the supplier promises certain things are true (e.g. that they own the IP they’re supplying). Indemnities: a stronger commitment to cover specified losses, often without the usual proof-of-loss hurdles. IP indemnity is standard — supplier indemnifies you against third-party IP infringement claims arising from your use of the deliverables.
Term, termination and consequences
How long does the contract run? Can either side terminate for convenience (typically with notice)? What about for cause (immediately, on material breach not remedied)? What happens on termination — pay for work done to date, transition assistance, return of confidential information?
Confidentiality and data protection
Two-way confidentiality is normal. If the supplier processes personal data on your behalf, you also need a UK GDPR-compliant data processing agreement (DPA) under Article 28 — typically as a schedule or separate document, not just a clause.
Force majeure and disputes
Force majeure: what events excuse performance (genuinely unforeseeable, beyond reasonable control). Dispute resolution: try negotiation first, then escalation, then court (or mediation/arbitration). Governing law: England and Wales. Jurisdiction: exclusive jurisdiction of the English courts.
The negotiating points
If you’re the buyer, these are the clauses worth pushing back on:
- Liability cap. Default supplier templates often cap at “fees paid in the last 12 months.” For low-value contracts, this is too low to be a meaningful remedy. Push for the higher of fees-paid or a meaningful fixed sum (£250k-£1m for serious contracts).
- Carve-outs. The cap should not apply to: breach of confidentiality, breach of IP, fraud, gross negligence. These are the breaches where you’d want full damages.
- Termination for convenience. Suppliers often hate this. You’ll want it — in case the relationship sours or your needs change. Negotiate notice period (typically 60-90 days).
- IP ownership of deliverables. Default to “vests in customer on payment” rather than “perpetual licence” if the deliverables are bespoke for you.
- Acceptance testing for goods/major services. A defined acceptance period (e.g. 30 days from delivery) and the right to reject for material non-conformance.
Common UK supplier-agreement mistakes
1. Signing the supplier’s standard terms unchanged. Their template is drafted in their favour. Push back on at least the liability cap, carve-outs, IP and termination.
2. No clear specification. Disputes over scope (“we said X, you delivered Y”) are won and lost on the specification document. Be specific.
3. Missing the data protection schedule. If the supplier processes personal data on your behalf, a DPA isn’t optional — it’s required by Article 28 UK GDPR.
4. No exit plan. What happens to your data, your code, your processes when the contract ends? Most contracts are silent, leading to messy transitions.
5. Battle of the forms. You email a PO referring to your terms. They respond confirming acceptance referring to their terms. Whose terms apply? Last-shot doctrine in English law (Tekdata v Amphenol [2009]) — usually whoever sent the most recent reference. To win this you need explicit acceptance of yours.
Skip the drafting: UK Supplier Agreement template
We maintain a UK B2B Supplier Agreement template covering all the clauses above — Late Payment Act compliant, UCTA 1977-aware liability cap with proper carve-outs, IP transfer on payment, full data protection wording. Editable Word document plus PDF, generated in under a minute. £9.
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If you’re a UK service business sending B2B contracts to clients (i.e. on the supplier side rather than buyer side), see also our Terms of Business template (£9), Service Level Agreement (£9), and Consultancy Agreement (£9). Bundle: all four for £29.
Frequently asked questions
Can I exclude all liability in a B2B supplier contract?
No. Under UCTA 1977, you can never exclude liability for death or personal injury caused by negligence, or for fraud. You can exclude or limit other liability but only where reasonable — courts apply a multi-factor test, and disproportionate exclusions in B2B contracts have been struck down.
What’s the difference between a warranty and an indemnity?
A warranty is a contractual statement of fact — if false, the other side can claim damages, subject to standard rules on remoteness and mitigation. An indemnity is a primary obligation to cover specified losses, often without those rules. Indemnities are stronger, but suppliers will resist giving them — typically only on IP infringement and similar high-stakes risks.
How long should I retain supplier contracts?
Six years from termination is standard (matches the Limitation Act 1980 default for breach of contract claims). For contracts under deed, twelve years. Tax records relating to the contract should be kept for the period required by HMRC (currently six years).
Do I need a separate data processing agreement?
If the supplier processes personal data on your behalf (your customer list, your employee records, anything where you’re the controller and they’re the processor), yes — Article 28 UK GDPR requires it. Usually annexed to the main contract as a schedule, with the supplier acting as processor under defined conditions.
When should I get a solicitor to review?
For routine supplier contracts under £25,000 with reputable counterparties, a sensible template plus careful review of the key clauses (liability, IP, data) is usually fine. For higher value, regulated industries, complex IP arrangements or anything you’d be sad to lose — get a commercial solicitor to review. Cost typically £500-£2,000 for a fixed-fee review.
Disclosure: AI Business Kit Docs is our own product. This article is general information about UK contract law, not legal advice tailored to your specific contract.