Contract Basics8 min readFebruary 22, 2026

IP Clauses in Contracts: Who Owns What You Create?

The IP clause determines who owns the work product. Get it wrong and you could lose ownership of the very thing you paid someone to create — or built yourself.

intellectual propertyIP ownershipwork for hirecopyrightpatents

Why IP ownership is the highest-stakes clause

If you hire a developer to build your app, who owns the code? If you design a logo for a client, who owns the copyright? The answer depends entirely on what the contract says.

Without an explicit IP assignment clause, the default under US copyright law is that the creator owns the work — even if someone else paid for it. The "work for hire" doctrine only applies automatically to employees, not independent contractors.

Watch out: Under US copyright law, the creator owns the work by default — even if you paid for it. Independent contractor agreements MUST include an explicit IP assignment.

Work for hire vs assignment

Work for hire means the hiring party is automatically the author and owner. Under US law, this applies to employees acting within the scope of employment and to independent contractors only for specific categories of work (contributions to collective works, parts of motion pictures, etc.).

Assignment is a transfer of existing rights from the creator to the buyer. This is the safer approach for independent contractor agreements — the contractor creates the work, then assigns all rights to the client.

Key takeaway

For independent contractors, always use an explicit assignment clause. "Work for hire" alone may not be sufficient under copyright law.

Background IP and license-back

What happens when a contractor incorporates their pre-existing tools, frameworks, or code into your deliverables? Without a background IP clause, you might be claiming ownership of things the contractor owned before your project.

The standard approach: each party retains their background IP. The contributing party grants a perpetual, royalty-free license to use background IP solely within the deliverables.

Pro tip: Ask contractors to list their background IP before the project starts. This prevents disputes about what was pre-existing vs. created for you.

The employee invention carve-out

Many states (CA, IL, MN, WA, DE) require that employee IP assignment clauses include a carve-out for inventions developed entirely on the employee’s own time, without company resources, and unrelated to company business.

Without this carve-out, the assignment may be unenforceable in those states. It also protects employees from having their personal side projects claimed by their employer.

AI-generated content: the new frontier

Who owns content generated by AI tools? The US Copyright Office has ruled that purely AI-generated content is not copyrightable. Human involvement in the creative process may change this analysis.

In contracts, address this explicitly: if deliverables include AI-generated content, both parties should acknowledge the copyright limitations and agree on ownership regardless.

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