What do you call a person who signs their name on the back of a negotiable instrument?

The term used for a person who signs their name on the back of a negotiable instrument is known as the endorser. This individual is transferring their rights to the instrument to another party, which is a fundamental aspect of negotiable instruments in financial transactions. By endorsing the instrument, the endorser typically indicates their agreement to the terms of the instrument and facilitates the transferability of the document to the new holder.

In the context of negotiable instruments, the endorsement process allows for flexibility in the transfer of ownership and can involve various forms of endorsement, such as blank endorsements or special endorsements, which specify who can negotiate the instrument. This designated role is crucial in the functioning of checks, promissory notes, and other financial documents, where cashier's checks and similar instruments need clear transfers of rights.

Other terms related to negotiable instruments, such as endorsee, refer to the party receiving the endorsement, and thus do not describe the act of signing the back of the instrument. Similarly, an endorsing party is a broader term and could refer to any party involved in the endorsement process, but it does not accurately reflect the specific action of signing as an endorser does.