Skip to content
FixMyContract
All terms
Photograph of an open blank book with an orange ribbon bookmark

Glossary

Intellectual propertyUpdated Sep 23, 2026

What Is a Perpetual or Irrevocable License?

A perpetual license has no end date. An irrevocable license cannot be withdrawn by the party that granted it. Contracts often combine the two: “perpetual, irrevocable, worldwide.” Together they mean the permission keeps running after the project, the payment or the working relationship has ended, unless the contract itself sets a limit.

Analyze my contract — freeFull mechanics: How to Read a Freelance Contract (Before You Sign, 2026)

Why it matters

For the side receiving it, it is security. For the side granting it — often a freelancer or creator — it can mean giving up control of the work for good.

How common is it?

In the 510 public-company commercial contracts of the CUAD dataset (The Atticus Project, CC BY 4.0), 70 (13.7%) contain an irrevocable or perpetual license.

Among contract types with at least 20 contracts in the set, it shows up most in development agreements (10 of 29), hosting agreements (6 of 20) and collaboration agreements (7 of 26).

These are larger-company deals, not a sample of every contract — a reference point, not a rule. Full method: /data/cuad.

What to watch for

  • Perpetual rights granted for a one-time, small fee.
  • Irrevocable even if the other side never pays.
  • Rights to modify, sublicense or resell, not just to use.

A realistic example

A photographer licenses images for a campaign with a “perpetual, irrevocable” license. Five years later the images appear in a paid product the photographer was never told about.

What to ask for

  1. A license limited to the stated use or campaign.
  2. Irrevocability that applies only after full payment.

Related terms: license grant · IP assignment · work for hire

Related guide: How to read a freelance contract

See how the perpetual license reads in your contract — 👉 Analyze your contract free — your first analysis is free, no card, no deadline to use it.

Not legal advice. This is an educational definition of a common contract term. Details vary by jurisdiction — this page explains common U.S. usage. For high-stakes agreements, have a lawyer review the final version.