Why most Terms of Service are unenforceable
A Terms of Service is only valuable if a court will uphold it. And courts — particularly in the US — have become increasingly sceptical of terms that users never meaningfully agreed to. The distinction between enforceable clickwrap terms and void browsewrap terms has been established through hundreds of cases, and the pattern is clear: active agreement is required.
Clickwrap vs browsewrap — the enforceability divide
Courts have consistently upheld clickwrap agreements — where users must actively check a box or click a clearly labelled "I agree" button before accessing a service. Courts have frequently voided browsewrap agreements — where terms are simply posted on a website and users are deemed to agree by using it.
The key cases are instructive: in Nguyen v. Barnes & Noble, the Ninth Circuit voided browsewrap terms because the link to terms was not sufficiently conspicuous. In Meyer v. Uber Technologies, clickwrap terms with a clear notice were upheld. The pattern is consistent — conspicuous, active agreement wins.
The five elements of an enforceable clickwrap implementation
- Notice — Users must be informed that by clicking or checking, they are agreeing to legal terms. A button that says only "Create Account" without a visible reference to terms is insufficient.
- Conspicuousness — The reference to your Terms of Service must be visually prominent — not buried in 8pt text below the fold or hidden in a cookie banner.
- Active agreement — Checking a pre-ticked box does not constitute active agreement. The user must perform a positive action: clicking an unchecked checkbox, clicking a clearly labelled consent button, or entering a specific confirmation phrase.
- Access to the terms — Users must have a genuine opportunity to read the terms before agreeing. A link that opens the full Terms of Service in the same window before completing registration satisfies this requirement.
- Record-keeping — You should maintain a timestamped record of each user's agreement: the version of terms they agreed to, the date and time of agreement, and the IP address or user identifier. This record is essential evidence in any dispute.
Clauses courts most often void
Unconscionable limitation of liability clauses
Courts in some jurisdictions will void limitation of liability clauses that are so one-sided as to be unconscionable — particularly in consumer-facing contexts. In the EU, consumer protection law (Unfair Terms Directive) explicitly prohibits clauses that exclude liability for death or personal injury caused by negligence. Your limitation of liability clause must be commercially reasonable and appropriately drafted for the B2C or B2B context.
Unilateral amendment clauses without notice
Courts have divided on whether "we can change these terms at any time without notice" clauses are enforceable. Best practice — and the approach required for enforceability in most jurisdictions — is to provide advance notice of material changes (typically 14–30 days) and to treat continued use after notice as acceptance. For high-impact changes, require affirmative re-consent.
Overly broad arbitration clauses
Mandatory arbitration clauses with class action waivers are a powerful tool for limiting litigation exposure, but they must be carefully drafted to survive state court scrutiny. California courts have voided arbitration clauses that were too one-sided, imposed excessive arbitration costs on claimants, or denied discovery rights. Federal courts generally enforce well-drafted clauses under the Federal Arbitration Act.
What your Terms of Service must address in 2026
- AI feature restrictions and output ownership — who owns content generated by your AI features
- Prohibition on using your platform or outputs to train competing AI models
- EU Digital Services Act obligations if you are an intermediary service with EU users
- 2026 CCPA auto-renewal requirements if you are a subscription business
- EU AI Act transparency disclosures for AI interaction features
- Updated payment failure and dunning provisions reflecting 2025–2026 card scheme rules
See our Terms of Service Drafting service for a complete breakdown of what TECHLAWG includes and our drafting process.
Frequently Asked Questions
Can I make my Terms of Service retroactively apply to existing users?
No — you cannot retroactively apply new terms to transactions or events that occurred before the updated terms. You can update your terms and require existing users to accept the new version before continuing to use the service, but the new terms apply prospectively. Courts have consistently refused to give retroactive effect to terms amendments.
What notice period do I need to give before changing my Terms of Service?
There is no universal standard, but 30 days is the commonly used benchmark for material changes, and 14 days for minor administrative updates. EU consumer protection law requires "reasonable notice" of material changes. California's automatic renewal law requires advance notice of changes to subscription pricing and terms. Your Terms of Service should specify your notice procedure and commit you to following it.
Do I need a Terms of Service for a free product?
Yes. A Terms of Service is even more important for free products because you cannot rely on a paid contract to define the relationship. Without terms, you have no legal basis to enforce your acceptable use policy, terminate abusive accounts, or limit your liability. Free products that collect data, enable user interactions, or include intellectual property all require Terms of Service.
Can my Terms of Service include a jurisdiction clause selecting a foreign court?
Yes, but with limitations. For B2B relationships, choice of law and jurisdiction clauses are generally respected. For B2C relationships in the EU, consumer protection law requires disputes to be heard in the consumer's home jurisdiction for certain types of claims — meaning a US governing law clause may not be enforced against an EU consumer for consumer protection claims. Your terms should acknowledge this reality.
What is a class action waiver and should I include one?
A class action waiver prohibits users from bringing or participating in class action lawsuits — requiring them to pursue individual claims only, typically through arbitration. These waivers are highly effective at reducing litigation exposure for SaaS companies. They are generally enforceable under federal law in the US but may be limited or voided in California for consumer contracts and are not effective against EU consumers under EU consumer protection law.