Practical Law UK Glossary 6-107-6977 (Approx. 2 pages)
Glossary
Passing rent.
The rent payable at a particular point in time. The phrase is often used in alienation covenants where a tenant covenants not to grant an underlease at a rent less than the rent passing under the headlease (or the relevant proportion of it in the case of an underlease of part).