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Deals · UK business guide

Commercial Contracts and Contract Risk

For contracts governed by England and Wales law, turn the commercial deal into clear rules for scope, payment, liability, intellectual property, changes, termination and disputes.

Jurisdiction: England and Wales. Scottish and Northern Irish contract rules and execution formalities can differ.

At a glance

  1. 01

    Define the bargain

    Write down the parties, deliverables, price, dependencies, timetable and acceptance criteria.

  2. 02

    Allocate risk

    Read warranties, indemnities, exclusions, liability caps, insurance and IP provisions together.

  3. 03

    Make exit workable

    Design notice, cure, termination, transition and dispute steps that can be used in practice.

What this guide covers

Make the legal decisions in the right order

A commercial contract should record what each side has promised and give the business a workable route when plans change. Start with the deal itself: parties, deliverables, price, timing, dependencies and approvals. Careful drafting will not prevent disputes if nobody can tell when work is complete, when payment is due or who must supply the information that keeps the project moving.

Risk also depends on who is buying. Business to business and consumer contracts are governed differently: consumer terms must meet mandatory fairness and transparency standards, and exclusions and limitations in commercial contracts may still be controlled by legislation. Use this guide to diagnose the deal, find the clauses that matter and decide whether you need drafting, review, negotiation or a documented variation.

Decision path

Work through the issue before committing to a course of action

Start with the first stage, then follow the sections that match the route you identify. Keep a written record of the facts, evidence and decisions.

  1. 01

    Identify the deal, parties and authority

    Confirm who is actually making the agreement, then pick a contract that fits the transaction.

    • Name the legal party. A trading name is not necessarily the legal party. Do not casually substitute a group company for the entity actually providing or receiving the service.
    • Check authority. Record company numbers where appropriate and check that the person signing has authority to bind the party.
    • Match the document. Choose a contract that matches the transaction, such as service terms, a supply agreement, a licence or a negotiated agreement. Do not force a complex relationship into a generic template.
    • Set document priority. Earlier proposals, purchase orders or online terms could also form part of the bargain. State which document takes priority if terms conflict.

    Checks to make

    • Confirm each party's full legal name, company number and contact details.
    • Identify who can sign and the source of their authority.
    • Match the agreement to the goods, services, licence or relationship being supplied.
  2. 02

    Make performance and payment measurable

    Describe the work in language your operational team can test, and tie every payment to a measurable event.

    • Define the deliverables. Specify milestones, acceptance criteria, customer dependencies, reporting and expenses, and say what happens when requirements change.
    • Cover payment fully. Payment terms should cover price, VAT, invoicing triggers, disputed invoices and late payment. Connect each invoice to a measurable event, not an assumption that both sides share the same timetable.
    • Plan ongoing services. For continuing services, state how renewals, price changes and service levels work.
    • Capture changes in writing. A written change process should record extra work, cost and delay before the team starts it. That evidence lets managers resolve ordinary delivery issues without a legal dispute.

    Checks to make

    • Define objective completion, delivery or acceptance criteria.
    • Connect invoice dates and payment triggers to measurable events.
    • Require written approval for changes to scope, price or timing.
  3. 03

    Allocate risk that matches the exposure

    Warranties, indemnities, exclusions and liability caps work as one allocation of risk. The aim is to allocate foreseeable risks clearly, at a level your business can carry.

    • Test the cap. A cap that looks reasonable in isolation may be undermined by broad uncapped indemnities or by exclusions from the cap.
    • Check control and insurance. Ask whether the risk can be insured and whether each party controls the event it is being asked to cover.
    • Separate the promise types. Distinguish direct obligations from promises about third party claims, intellectual property, confidentiality, data and regulatory compliance.
    • Know the statutory limits. Some liabilities cannot be excluded at all. Other restrictions may need to satisfy statutory reasonableness, fairness or transparency tests.

    Checks to make

    • Compare the liability cap with likely loss, contract value and insurance cover.
    • Identify every uncapped obligation and exception to the cap.
    • Check that each party controls or can insure the risk allocated to it.
  4. 04

    Plan changes, exit and enforcement

    Agree how the relationship can change or end before either side is under pressure.

    • Build the exit machinery. Include a variation process, notice details, termination triggers, cure periods and any transition assistance. Test notice addresses and delivery methods rather than copying them from an old agreement.
    • Say what survives. Explain what happens to accrued payments, confidential information, intellectual property, customer data and work in progress after termination.
    • Check signing formalities. Electronic signatures can often be used where the signer intends to authenticate the document and all applicable formalities are met. Execution requirements differ between England and Wales, Scotland and Northern Ireland.

    Deed witnessing and the Law Commission guidance below concern England and Wales. Before ending an agreement for breach, check the contractual route and the wider legal consequences of getting termination wrong.

    Checks to make

    • Test every notice method, address and cure period.
    • State which payment, confidentiality, IP and data duties survive termination.
    • Confirm the correct signing and witnessing formalities before execution.

Common situations

Where businesses usually need to slow down and check the detail

Competing standard terms

A customer sends purchase order terms after accepting a quote. Compare both documents and resolve which terms govern before delivery begins.

Scope keeps expanding

A project grows beyond the original brief. Use the variation process before doing extra work and record the revised deliverables, price and timing.

Uncapped indemnity request

A supplier asks for broad protection. Identify the covered events, exclusions, control over claims and whether available insurance would respond.

Early termination

The relationship needs to end sooner than planned. Check termination rights, notice, cure periods and continuing duties before treating the contract as ended.

Selected reading

Understand the issue before deciding what to do next

Start with these articles for the key rules, then check the official sources before you act.

Is a contract legally binding in the UK?Check offer, acceptance, consideration, intention and certainty before relying on an agreement.Contract variations in the UKFind the right way to record a change in scope, price or timing after an agreement has been made.Warranty and indemnity comparedCompare how warranties and indemnities allocate loss and affect the remedies available after a breach.Elements of a breach of contractAssess the obligation, breach, loss and supporting evidence before escalating a contract dispute.When a document must be signed as a deedIdentify when an agreement needs deed formalities, witnessing or a longer enforcement period.Void contracts explainedDistinguish a void agreement from one that is voidable, unenforceable or simply breached.Changing your mind after signingCheck the cancellation, termination and breach consequences when a party wants to withdraw after signing.

Primary sources

Source links checked 2 August 2026. Confirm the current rule before acting.

Questions businesses ask

Quick answers before you take the next step

These answers are general. Check the relevant documents and current official guidance for your particular facts.

Does a commercial contract have to be written?

Not always, but written terms make the parties, scope, price and enforcement position much easier to prove. Some transactions and deeds have specific formalities.

Can a contract be signed electronically?

Often, provided the signer intends to authenticate the document and all applicable formalities are met. Deeds and witnessed documents require additional checks.

Can a business exclude all liability?

No. Some liabilities cannot be excluded, and other exclusions may be subject to reasonableness, fairness or transparency requirements.

Can we change a contract after signing?

Usually by agreement, following any variation clause and recording the change properly. The required form depends on the contract and the proposed change.

Can we terminate immediately after a breach?

Only if the contract or general law gives that right in the circumstances. Ending a contract incorrectly can itself amount to a breach.

Need help putting this into practice?

Put the right documents and advice behind your decision

Contract reviewBest when you have a draft and want its key risks, gaps and negotiation points reviewed. We can quote separately for redrafting where needed.View fixed-fee serviceContract draftingBest for a new or unusual deal that needs an agreement built around its delivery and risk model.View fixed-fee serviceBusiness terms and conditionsBest for businesses that repeatedly supply goods or services on a standard set of customer terms.View fixed-fee service

This guide is general information, not legal, tax or financial advice. The right path depends on the entity, documents and commercial facts.

Related guides

Follow the connected legal decisions

Ecommerce and Consumer LawAlign checkout design, product information, cancellation, renewals, refunds and complaints with the promises in customer-facing terms.Intellectual Property and Trade MarksIdentify what the business owns, what must be assigned or licensed and which names, designs or creative works need clearance or registration.Shareholders and Company GovernanceConnect the Companies Act, articles, shareholders agreement and board process so ownership and decision-making rules work together.
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