When reviewing a contract, you’ll encounter the words revocable and irrevocable in several different contexts. They may describe an offer, a license, a power of attorney, a trust, or an entire agreement. The distinction—whether a party retains the right to take back what they gave—has significant legal and practical consequences.
Revocable Definition in Law
Revocable means capable of being withdrawn, canceled, or annulled by the granting party. A revocable right can be taken back. The party who granted the right—whether a license, an authorization, or an offer—retains the power to revoke it, typically at will or upon specified conditions.
Irrevocable Definition in Law
Irrevocable means not capable of being withdrawn, canceled, or annulled by the granting party once given. An irrevocable right is permanent for its stated term; the grantor gives up the power to take it back.
Revocable vs. Irrevocable: Where the Terms Appear in Business Agreements
IP Licenses
This is one of the most important contexts for startups. An IP license grants someone the right to use your intellectual property. Whether that license is revocable or irrevocable determines whether you can terminate it.
| License Type | What It Means |
|---|---|
| Revocable license | Licensor can terminate at will or upon breach; licensee builds nothing permanent on borrowed IP |
| Irrevocable license | Licensor cannot terminate during the stated term; licensee can rely on continued access |
| Perpetual irrevocable | License continues forever and cannot be revoked; typically granted in asset sales or open-source software |
Founders licensing their IP to partners, vendors, or enterprise customers should understand: a perpetual, irrevocable, sublicensable license is nearly impossible to take back. Many founders have inadvertently granted such licenses in vendor contracts without realizing the implications.
Offers and Option Agreements
Under general contract law, an offer is revocable until accepted—unless it is supported by consideration that makes it irrevocable (called an option contract). An option agreement pays the offeree to keep the offer open for a defined period, during which the offeror cannot revoke it.
Powers of Attorney
A standard power of attorney is revocable—the principal can terminate the agent’s authority at any time. A durable power of attorney remains in effect if the principal becomes incapacitated. An irrevocable power of attorney (less common) cannot be terminated by the principal and is typically used when coupled with an interest (e.g., a lender given power of attorney over collateral).
Trusts
A revocable living trust can be amended or dissolved by the grantor during their lifetime—the grantor retains control. An irrevocable trust transfers assets out of the grantor’s estate permanently; the grantor gives up control in exchange for estate tax and asset protection benefits.
Letters of Credit
Under the UCC and commercial banking practice, most letters of credit are irrevocable—the issuing bank cannot cancel or modify them without the beneficiary’s consent. A revocable letter of credit (now rare) could be canceled before presentation, providing little real security.
Key Drafting Considerations
- Always specify in IP licenses whether the grant is revocable or irrevocable—courts may infer one or the other based on the surrounding circumstances if you don’t
- If a license is revocable, specify the conditions and notice period for revocation
- If a license is irrevocable, make sure you actually intend to permanently give up your right to terminate
- For software licenses, “perpetual” (term) and “irrevocable” (terminability) are separate concepts—clarify both
FAQ: Revocable vs. Irrevocable
Can a revocable license become irrevocable?
Yes, in some circumstances. If a licensee makes substantial investments in reliance on a revocable license and the licensor knew they would do so, courts may apply an estoppel doctrine to prevent revocation—effectively making a revocable license irrevocable by operation of law.
Can an irrevocable license be terminated for breach?
It depends on the contract. Some irrevocable licenses expressly include termination rights for material breach. Others genuinely cannot be terminated regardless of licensee conduct. The contract language controls.
Fitter Law helps Illinois startups and businesses draft and negotiate IP licenses, vendor agreements, and business contracts. Learn about our IP licensing services or view our flat-fee packages.