Terms and conditions are legally binding when the agreement meets the same requirements courts apply to any contract and when you were given a fair chance to see the terms before accepting them. A click on “I Agree” can form a contract just as effectively as a signature on paper. Whether a particular set of terms will actually hold up against you depends on how they were presented, what they say, and whether any individual provisions cross lines that courts refuse to let companies cross.
What Has to Be True for the Agreement to Bind You
Every enforceable contract rests on three things: mutual assent, consideration, and capacity. Mutual assent means both sides demonstrate a shared intent to enter a bargain. One side offers, the other accepts. If you had no idea you were entering a legal relationship, there was no meeting of the minds and no contract.
Consideration is the exchange. Each side has to give up something of value. Your monthly subscription payment is consideration; the company’s grant of access to its service is consideration back. A promise where only one party benefits generally cannot be enforced as a contract.
Capacity means you were old enough and mentally competent to understand what you were agreeing to. In most states the age of majority for contracts is 18, though a small number of states set it at 19 or 21. An agreement entered without capacity — because of age, mental disability, or intoxication — may be voidable at your option.
Miss any one of these three elements and the terms never became binding in the first place.
Notice Is Usually the Deciding Factor Online
The three elements above are table stakes. The question that actually decides most online cases is whether the company made the terms conspicuous enough that a person of ordinary attention would notice them.
Formatting matters. Bold text, contrasting colors, and clearly labeled hyperlinks help satisfy the notice standard. Terms in tiny gray text at the bottom of a page often do not. Placement matters just as much. A link to the terms sitting right next to a “Sign Up” or “Buy Now” button carries far more weight than one tucked into a site footer several scrolls away. The burden of making the terms visible sits with the company that wrote them, not with you to go hunting.
If a reasonable person in your position would not have realized they were entering a legal relationship, the terms may not be enforceable against you at all.
Clickwrap, Browsewrap, and Scrollwrap
Online agreements generally fall into one of three formats, and courts treat them very differently.
Clickwrap requires you to take an affirmative step, usually checking a box or clicking an acceptance button, before you can proceed. Because this calls for a deliberate action, clickwrap agreements are widely recognized as valid contracts. The active step removes ambiguity about whether you meant to accept.
Browsewrap posts the terms somewhere on the site, often through a footer hyperlink, and declares that your continued use of the site counts as acceptance. Courts are skeptical. The Ninth Circuit held in Nguyen v. Barnes & Noble that a hyperlink to terms on every page, without any prompt requiring the user to acknowledge it, was not enough to create a binding agreement, even when the link appeared near buttons the user had to click.1United States Court of Appeals for the Ninth Circuit. Nguyen v. Barnes and Noble Inc.
Scrollwrap requires you to scroll through the full text before the acceptance button becomes active. This is the strongest format because it ensures you at least had the chance to see every provision before committing.
Mobile apps follow the same logic. A pop-up that requires you to tap “I Agree” before using the app functions as clickwrap. An app that only buries a terms link in its settings menu, with no prompt, operates more like browsewrap and carries the same enforceability risk.
Federal law backs all of this up on the signature side. The Electronic Signatures in Global and National Commerce Act provides that a contract or signature cannot be denied legal effect simply because it is in electronic form.2Office of the Law Revision Counsel. 15 USC 7001 – General Rule of Validity A mouse click, a tapped checkbox, or a typed name in a signature field can all satisfy the legal requirement for a signature in a consumer transaction.
Terms Courts Refuse to Enforce Even After You Click
Agreeing to a contract does not make every line in it bulletproof. Courts regularly strike individual provisions, and occasionally entire agreements, when the content crosses legal boundaries.
Unconscionable Terms
A provision is unconscionable when both the way it was presented and what it says are unfair. The procedural side asks whether you had a meaningful choice: Was the contract take-it-or-leave-it? Was the language dense and hidden? Could anything be negotiated? The substantive side asks whether the term itself is unreasonably one-sided, for example a clause letting a company change the price of a service at any time while locking you into a multi-year commitment with heavy cancellation fees. Most courts require some degree of both before voiding a provision.
Gag Clauses on Reviews
No contract can require you to break the law or waive rights a statute protects. The Consumer Review Fairness Act makes it illegal for a company to use a standardized contract term that restricts your ability to share honest reviews, imposes a penalty for doing so, or forces you to hand over intellectual property rights in your feedback.3Office of the Law Revision Counsel. 15 USC 45b – Consumer Review Protection A “gag clause” is void from the moment the contract is formed, and including one violates federal law regardless of whether you clicked “I Agree.”
Liability Waivers
Many terms cap or waive the company’s financial exposure if something goes wrong. For ordinary negligence, these clauses are generally enforceable. Courts draw a firm line at intentional misconduct, and a clause that tries to shield a company from liability for fraud will not hold up. For gross negligence, the answer depends on the state: some enforce a well-drafted limitation that explicitly references all types of negligence, while others refuse to let any company cap its liability for conduct that extreme. A waiver of liability for intentional harm is almost always void as against public policy.
Oversized Early Termination Fees
A liquidated damages clause sets a fixed amount you owe if you breach the contract, such as an early termination fee. Courts enforce these only when the amount is a reasonable estimate of the actual harm the company would suffer and when that harm would be difficult to calculate precisely. If the figure is disproportionate to any realistic loss, a court will treat it as an unenforceable penalty rather than a legitimate damage estimate.
When the Company Changes the Terms Later
Companies update their terms constantly, and whether those updates bind you turns on whether you received meaningful notice. A revised set of terms is essentially a new offer. It does not become binding until you accept it.
Courts have rejected the argument that customers must check a company’s website regularly to find out whether terms have changed. Posting new language on a website, with no direct notification, has been found insufficient to bind users who never learned about the revision. Effective notice usually requires the company to reach you directly through an email, an in-app notification, or a pop-up asking you to acknowledge the new terms.
Many agreements include a modification clause giving the company the right to update terms after a specified notice period, often 30 days. Even then, the change is more likely to hold up if the company gives you a way to reject it, such as closing your account before the new terms take effect. A revision that takes effect immediately with no notice and no opt-out is exactly the kind of one-sided change courts view with suspicion.
Mandatory Arbitration and Class Action Waivers
One of the most consequential provisions buried in most terms and conditions is a mandatory arbitration clause. If you agreed to one, you typically gave up the right to sue the company in court and must instead resolve disputes through a private arbitrator. The Federal Arbitration Act makes written arbitration agreements in contracts involving commerce “valid, irrevocable, and enforceable,” subject only to the same defenses, like fraud or unconscionability, that apply to any other contract.4Office of the Law Revision Counsel. 9 U.S. Code 2 – Validity, Irrevocability, and Enforcement of Agreements to Arbitrate
Alongside arbitration clauses, many companies include class action waivers that prevent you from joining other customers in a group lawsuit. The Supreme Court upheld these waivers in AT&T Mobility LLC v. Concepcion, ruling that the Federal Arbitration Act preempts state laws that would otherwise invalidate class action waivers in arbitration agreements. The practical effect is significant. Even if thousands of customers experience the same problem, each has to pursue their claim individually.
This matters most for smaller disputes. If a company overcharges you by $30, the cost and effort of individual arbitration may outweigh the recovery, making it unlikely that anyone will challenge the practice at all. Some arbitration agreements require the company to pay most filing and arbitrator fees, which lowers the financial barrier, but the time and effort remain a deterrent. If you are deciding whether to accept a service’s terms, the arbitration and class action waiver sections are among the most important to actually read.
Governing Law and Where You Have to Sue
Terms and conditions almost always specify which state’s laws govern the agreement and where any dispute must be filed. A governing law clause might declare that Delaware or California law applies regardless of where you live. Companies pick a particular state because its precedents are favorable to them or because the state has well-developed law in their industry. Courts generally enforce these clauses as long as the chosen state has a substantial connection to the company or the transaction, such as being the state of incorporation or headquarters.
A forum selection clause goes further by requiring any lawsuit to be filed in a specific court, often in the same state chosen in the governing law provision. These clauses are presumptively valid, but a court can refuse to enforce one if doing so would be fundamentally unjust, for example if requiring you to travel across the country for a small-dollar dispute would effectively deny you the ability to pursue your claim at all. In consumer contracts, courts tend to scrutinize these clauses more carefully, weighing whether you had any realistic chance to negotiate the forum or even to understand what you were agreeing to.
If You Were a Minor When You Agreed
Under the infancy doctrine, someone who enters a contract while under the age of majority can generally cancel, or disaffirm, that contract within a reasonable time after reaching 18 (or whatever age applies in their state). This power exists even after a clickwrap “I Agree.” The reasoning is simple: minors are presumed to lack the maturity to fully understand binding obligations, so the law gives them an exit.
Disaffirmance is not unlimited. If the minor still has something they received under the contract, they may have to return it as a condition of canceling. For many online services the “benefit” is just access that ends when the account closes, leaving nothing to return. A minor who keeps using the service after turning 18 without objecting to the terms may be found to have ratified the agreement, making it fully binding from that point forward.