What is the difference between licensing my IP to someone else and assigning it to them outright?

Assigning IP means permanently transferring ownership — once you assign your trademark, copyright, or patent rights to another party, you no longer own them and generally cannot take them back unless the agreement says otherwise. Licensing is fundamentally different: you keep ownership and instead grant someone else permission to use your IP under specific conditions — for a set time, in a defined territory, for particular products, exclusively or non-exclusively — usually in exchange for a fee or royalty.

A licence can be structured narrowly or broadly, and can be revoked or allowed to expire according to its terms, giving you more ongoing control than an assignment does. Businesses often license rather than assign when they want recurring revenue from the same IP across multiple partners, want to preserve their own future use of it, or want the ability to end the arrangement if the licensee does not perform. The choice has real consequences: assigning valuable IP away permanently can limit your future options, while a poorly drafted licence can leave you without adequate control over how your brand or invention is used, so getting the scope, exclusivity, term, and termination rights right matters from the start.