Can AI review a contract for a small business? What it catches and what it misses

We make Extra, an AI agent platform, so this article is written by an interested party. Facts about other tools and about the law come from the sources listed at the bottom, as of the date shown.

What can AI actually do when it reviews a contract?

A language model reads a twenty-page contract in seconds and can pull out what a busy owner is looking for. In practice, it can:

• Summarize: who commits to what, for how long, at what price, and how you get out.
• Flag sensitive clauses: automatic renewal, notice periods, penalties, liability caps, exclusivity, non-compete.
• Compare two versions: what your vendor changed between its first draft and the “final” one.
• Explain the jargon: “indemnify and hold harmless,” “force majeure,” “liquidated damages” in plain sentences.
• Prepare your questions for the other side or for your lawyer.

For a small business, that is a real gain: most contracts (a commercial lease, a services agreement, a software subscription, an equipment lease) get signed without a real read, for lack of time.

Is it reliable? What the research says

Not enough to sign without you. In May 2024, Stanford researchers tested professional legal research tools: Lexis+ AI produced incorrect information more than 17% of the time, and Westlaw’s AI-assisted research more than 34%. Those tools still beat general chatbots, which were wrong 58% to 82% of the time on legal questions in the team’s earlier study.

The typical mistakes are well known:

• Making things up: a rule, a statute or a case that doesn’t exist.
• Missing what’s missing: AI comments on what is written, much less on what should be (no liability cap, no way out).
• Misreading cross-references: “except as provided in Exhibit C,” when Exhibit C wasn’t included.
• Applying the wrong law: rules from one state read into a contract governed by another.

Lawyers are held to the same caution. In July 2024 the American Bar Association issued Formal Opinion 512, its first ethics guidance on generative AI: lawyers who use these tools must stay competent in them, protect client confidentiality and check the output. If professionals have to verify, so do you.

A simple rule: every time AI tells you a clause is “unenforceable” or “illegal,” ask for the exact statute and check it yourself, or have a professional confirm it.

Which clauses should a small business check first?

These ten points cover most bad surprises. Ask the AI to go through them one by one, quoting the exact language.

1. The term and the start date.
2. Automatic renewal: does it renew on its own, and for how long?
3. Notice to cancel: how many days, in what form (written notice, certified mail?), by what date.
4. Price and increases: annual escalators, fees in the fine print.
5. Penalties for late payment or early termination.
6. Liability: is it capped, and at how much? For you, for them?
7. Indemnification: who pays if a third party sues?
8. Exclusivity and non-compete: do they stop you working with others?
9. Ownership of what gets made (website, logo, photos, code).
10. Governing law and venue: which state, which court, or mandatory arbitration.

What about auto-renewal rules in the US?

Don’t count on federal law to rescue you from a renewal you missed. The FTC’s “click to cancel” rule, which would have covered business-to-business subscriptions too, was vacated by the Eighth Circuit in July 2025, days before it took effect. Many states, including California, New York and Minnesota, have their own automatic renewal laws, but they mostly protect consumers, not businesses. For a business contract, the notice clause you signed is usually what counts. Put the cancellation deadline in your calendar the day you sign.

AI, lawyer or reading it yourself: which to choose?

How do you review a contract with AI, step by step?

1. Provide the whole contract, exhibits and referenced terms included. AI can’t read what you don’t give it.
2. Say which side you are on (the customer, the vendor) and what matters to you (getting out quickly, capping your risk).
3. Ask for the ten points above, each with the exact quote from the contract.
4. Ask what’s missing: “Which clauses that usually appear in this type of contract are absent?”
5. Have it draft your requested changes, in polite, precise terms.
6. Verify every legal claim that would change your decision.
7. Keep the signed copy with your business records, at least as long as the contract runs and then through your state’s limitation period for contract claims.

Is it safe to share contracts with an AI tool?

A contract holds prices, names and sometimes personal data. Before you upload one, check where the data is processed, how long it is kept and whether it is used to train models. Avoid consumer tools that keep history by default for anything sensitive, and never upload a contract covered by a confidentiality clause without checking what it allows.

At Extra (hello-extra.com), that is the job of Clara, the legal agent: she reads and annotates your contracts, compares versions and tells you in plain words what deserves a question, and never presents herself as a lawyer. The security page explains how your documents are protected. For other ways AI helps a small business, see our guide to AI agents for small business.

Also read: commercial lease red flags to check before signing.

Also read: using AI to write a contract.

Sources

1. Stanford HAI, “AI on Trial: Legal Models Hallucinate in 1 out of 6 (or More) Benchmarking Queries,” 05/23/2024
2. American Bar Association, “ABA issues guidance on lawyers’ use of AI tools” (Formal Opinion 512), 07/29/2024
3. Wiggin and Dana, “FTC’s Click to Cancel Rule Has Been Vacated,” 07/2025
4. IRS, “How long should I keep records?,” accessed 11/02/2026