Which Website Legal Documents Does My Startup Actually Need? 

My site has a footer with two links. One says Terms of Use, one says Privacy Policy, and both point to a document my first engineer assembled from a generator two years ago.

I have always assumed they do basically the same job. I have never checked whether that assumption is quietly working against me.

What Does Each Document Actually Do?

Your Terms of Use (ToU) is a contract. It creates a binding agreement between you and the user. Everything in it is a term you propose and the user accepts: what they may do with your service, what you promise, what you disclaim, how disputes are resolved. Its force depends on the user having assented to it.

Your Privacy Policy is a disclosure. It tells people accurately what you do with their personal information: what you collect, why, who receives it, how long you keep it, and what rights they have. A user does not need to agree to it for it to matter. What matters is whether it is true.

Why Does the Difference Change Your Risk?

A weak Terms of Use costs you leverage in a dispute with a user. An inaccurate Privacy Policy is a different category of problem, because a statement about your data practices that does not match reality can be treated as a deceptive statement to consumers, separately from whether the practice itself was permissible.

Put plainly: the Privacy Policy can create liability out of something that would have been fine had you described it correctly.

Why Does Merging Them Backfire?

It fails in both directions. Putting privacy disclosures inside a contract implies the user must agree to your data practices, which complicates the separate question of whether you hold valid Consent where consent is the basis you rely on.

Putting contractual terms inside a privacy notice buries provisions like your liability cap in a document users are told is informational, which does not help you argue assent.

There is an operational reason as well. A privacy policy needs to change whenever your data practices change. You do not want every one of those updates to be a contract amendment.

Common Mistakes Founders Make

• Combining the two documents. Keep them separate, link them separately, and update them on separate cycles.
• Describing practices you intend to have rather than practices you have. Every sentence should be something you could substantiate today. The gap between aspiration and reality is where deception claims live.
• Not connecting product changes to disclosure review. Any change to what you collect, why, or who receives it is a privacy policy question. Without a step that asks this, your policy drifts out of accuracy without anyone deciding it should.

A Quick Founder Check

• Are our Terms of Use and Privacy Policy separate documents, linked separately?
• When did each last get reviewed, and by whom?
• Does the user take an affirmative action to accept the Terms, and could we prove it for a given user?
• Does our Privacy Policy list every third party receiving user data, including analytics, advertising, and support tools?
• Is every statement in it demonstrably true today?
• Does our engineering process flag changes affecting data collection or sharing?
• Does the process we describe for exercising user rights actually work if someone uses it?

The Bottom Line

The highest-value hour available here is reading your own privacy policy against a current list of the third-party services running in your product. Discrepancies are common, and they are almost always fixable before anyone else finds them.

Download the Data Mapping Worksheet to build that inventory, then check it against what your published policy currently claims: https://primumlaw.com/primumlawgroup/data-mapping-worksheet/