Commercial Contract Drafting: Essential Skills for Lawyers

Most commercial lawyers can find a limitation of liability clause in a contract. Far fewer can tell you, without checking, whether it actually protects their client if things go wrong — or whether it quietly leaves them exposed because of how a defined term interacts with an indemnity three pages later. That gap, between recognising a clause and understanding what it does under pressure, is where disputes are born. This guide sets out the clauses that decide most commercial disputes, the drafting pitfalls that create them, and how to move from template-following to genuinely risk-aware drafting — the kind of practical skill that CPD courses for commercial lawyers are increasingly built around.

Why Drafting Skill Matters More Than Template Familiarity

Almost every commercial lawyer works from precedents. That is not the problem — no one drafts a supply agreement from a blank page, and good precedents encode years of accumulated risk allocation. The problem is treating a precedent as a finished product rather than a starting point that has to be interrogated for every new deal. A limitation clause copied from a software licence does not automatically work in a manufacturing supply agreement, where the consequences of a defect are physical, not just financial. A termination clause that assumes a single deliverable does not sit comfortably in a framework agreement with rolling call-offs. Boilerplate competence — knowing where a clause sits and roughly what it says — gets a contract signed. Risk-aware drafting asks what happens when the relationship breaks down, and makes sure the document still works at that point, not just on the happy path.

The Clauses That Actually Decide Disputes

A relatively small number of clauses do most of the work when a commercial relationship turns adversarial. Getting these right matters far more than polishing the recitals.

Limitation of Liability

A limitation clause caps or excludes one party's exposure for breach, and it is almost always the most heavily negotiated provision in a commercial contract because it determines who bears the financial consequence of things going wrong. Three drafting details cause most of the disputes:

• The interaction between the cap and the carve-outs. Most caps exclude certain losses from the limit entirely — fraud, death or personal injury caused by negligence, and (in England and Wales) liability that cannot lawfully be excluded under the Unfair Contract Terms Act 1977. Drafters frequently add commercially negotiated carve-outs too (breach of confidentiality, IP infringement, data breaches) without checking whether those carve-outs are themselves capped elsewhere, which can silently reopen unlimited exposure.
• What the cap is calculated against. "12 months' fees" means something very different in a contract with volatile annual spend than in one with a fixed monthly retainer, and drafters should be precise about which 12 months (the year preceding the claim, the contract year, a rolling period) rather than leaving it to be argued after a dispute has already started.
• Direct versus indirect and consequential loss. Excluding "indirect and consequential loss" is common, but the case law distinction between direct and indirect loss is narrower than most commercial parties assume — loss of profit, for example, can often be a direct loss depending on how it arises. A clause that simply excludes "loss of profit, revenue and consequential loss" without more precision invites argument over which bucket a given loss falls into.

Indemnities

An indemnity is a promise to compensate the other party for a defined loss, and it sits apart from a normal damages claim in one important respect: it does not require the claiming party to prove the usual common law elements of breach, causation and a duty to mitigate in the same way a damages claim does, because the parties have contracted for a specific payment obligation to arise on a defined trigger. That makes indemnities powerful — and worth drafting narrowly and precisely. A poorly scoped indemnity (for example, one that indemnifies "any loss arising from or connected with" the contract) can end up duplicating, or even exceeding, the liability cap the parties thought they had agreed, because a well-advised counterparty will argue the indemnity sits outside the cap altogether unless the contract says otherwise. Every indemnity should be checked against the limitation clause to confirm whether it is meant to be inside or outside the cap, and that intention should be stated expressly rather than left for a court to infer.

Termination

Termination clauses fail in practice more often than any other clause type, usually for one of three reasons: the trigger for termination is too vague ("material breach" undefined), the notice and cure mechanics are ambiguous about when the clock starts running, or the clause does not address what happens to obligations that should survive termination — confidentiality, IP ownership, accrued payment obligations, data return or destruction, and limitation of liability itself. A termination clause that goes silent on survival can leave a party arguing, after the relationship has already broken down, that the confidentiality obligations died with the contract. Getting termination right also means thinking about termination for convenience separately from termination for cause, since the notice periods, compensation and transitional obligations are usually different for each.

Force Majeure

A force majeure clause excuses a party from performance when an event outside its reasonable control makes performance impossible or impracticable. The clause only does useful work if it is drafted narrowly and specifically — a generic list of "acts of God, war, and other events beyond a party's control" leaves enormous room for argument about what actually qualifies, and under English law force majeure is a creature of contract only: there is no default doctrine a party can fall back on if the clause does not cover the event that has actually happened. Well-drafted force majeure clauses specify the qualifying events, require the affected party to notify promptly and to mitigate, set a maximum suspension period, and state clearly what happens if the event continues beyond that period — usually a right to terminate for either party. Drafters should also check the clause against the separate doctrine of frustration, which can discharge a contract entirely in extreme cases even without a force majeure clause, but sets a much higher bar and is not something to rely on as a substitute for proper drafting.

Governing Law and Jurisdiction

These clauses are often treated as an afterthought, dropped in near the end of the document with minimal thought, yet they determine which country's courts will hear a dispute and which country's law will be applied to interpret every other clause in the contract. A mismatch — for example, choosing English governing law but an exclusive jurisdiction clause for a different country's courts, or an ambiguous clause that could be read as either exclusive or non-exclusive jurisdiction — can add months and significant cost to enforcement if a dispute arises, before the parties even get to the substance of the disagreement. For cross-border commercial contracts, this clause deserves the same level of attention as the indemnity and limitation provisions, not a rubber stamp at the signing stage.

Common Drafting Pitfalls That Cause Disputes

Beyond the specific clauses above, a handful of recurring drafting habits generate a disproportionate share of commercial disputes:

• Inconsistent defined terms. A term defined one way in the main body and used loosely elsewhere (or defined twice, slightly differently) creates exactly the kind of ambiguity a court will have to resolve against one party's interpretation — and neither side knows in advance which one.
• Entire agreement clauses that don't match the deal. An entire agreement clause excludes reliance on pre-contractual representations, but if the parties actually relied on something said in negotiations that matters commercially, it needs to be written into the contract itself — not left to an oral assurance the entire agreement clause will later extinguish.
• Vague conditions precedent. "Subject to satisfactory due diligence" or "subject to board approval" without a defined standard or deadline gives one party an effective unilateral escape route, which is sometimes intentional but is very often an oversight.
• Assignment and change of control silence. Contracts frequently say nothing about what happens if either party is acquired, restructured, or wants to assign its rights — leaving the other side unable to object, or unable to exit, precisely when it matters most.
• Boilerplate copied wholesale from an unrelated deal. Notice clauses with outdated addresses, currency references left over from a different jurisdiction, or dispute resolution clauses that reference an arbitration body the parties never agreed to — all signs of a precedent adapted too quickly.

From Boilerplate Competence to Risk-Aware Drafting

The difference between the two is really a difference in question-asking. A boilerplate-competent drafter asks "does this clause look like the ones I've seen before?" A risk-aware drafter asks "what specific loss, dispute or breakdown scenario is this clause meant to handle for this deal, and does the wording actually deliver that outcome?" That second question forces you to read every clause against the commercial reality of the specific transaction — the value at risk, the parties' relative bargaining power, the consequences of failure — rather than assuming the precedent has already done that thinking for you. It also means reading clauses against each other, not just in isolation: the limitation clause against the indemnities, the termination clause against the survival provisions, the governing law clause against where the parties' assets actually sit. Building that habit takes deliberate practice, which is why structured negotiation and drafting practice — the kind covered in our guide to negotiation skills for lawyers — pays off well beyond the negotiating table.

Drafting in Practice: Where Skill Actually Gets Built

Skill in commercial drafting is built through repetition with feedback — drafting a clause, seeing how a counterparty pushes back on it, and understanding why. It is also increasingly shaped by how lawyers use technology in the drafting process itself: AI drafting and review tools can flag inconsistent defined terms or missing carve-outs quickly, but they still need a lawyer who understands why a limitation cap and an indemnity need to be read together to catch the issues that actually matter commercially. Our guide to AI-assisted drafting and document review looks at how to use these tools as a first pass rather than a substitute for that judgement. The lawyers who draft best are usually the ones who have also negotiated the clauses they draft — clear, precise writing matters here too, and the fundamentals covered in our guide to clear legal writing apply just as much to a limitation clause as to a client letter.

Frequently Asked Questions

What's the single most disputed clause in commercial contracts?

Limitation of liability tends to generate the most negotiation and, later, the most disputes over interpretation — largely because it interacts with almost every other clause in the contract, including the indemnities and the carve-outs for loss that cannot lawfully be excluded.

Do indemnities always sit outside a liability cap?

Not automatically — it depends entirely on how the contract is drafted. If the parties intend an indemnity to be capped, the contract needs to say so expressly; otherwise a well-advised counterparty will argue it falls outside the general limitation clause.

Is a generic force majeure clause better than none at all?

It is better than nothing, but a vague, generic list of qualifying events creates its own disputes over whether a given event actually falls within it. A clause tailored to the specific risks of the transaction, with clear notice, mitigation and long-stop termination provisions, does far more useful work.

How can a junior commercial lawyer build risk-aware drafting skill faster?

Read precedents critically rather than copying them, ask a supervising solicitor why a specific clause is worded the way it is, and get exposure to how disputes actually arise from poorly drafted clauses — structured CPD training that works through real drafting scenarios accelerates this considerably compared to learning purely on live files.

Commercial contract drafting is a skill that compounds — the lawyers who draft it well are the ones who have deliberately studied where disputes come from, not just how templates are structured. Learnsignal's CPD courses for legal professionals are built around exactly this kind of practical, risk-focused training, helping commercial lawyers move from template familiarity to genuinely confident, dispute-resistant drafting.