A bank endorsement is a guarantee made by a bank that it will uphold a check or other negotiable instrument from one of its customers. This assures any third party that the bank will back the obligations of the creator of the instrument in the event that the individual or entity cannot make payment. Bank endorsements are common in international trade where the business parties are typically unknown to each other. Banks stand in the middle by assuring good funds to the recipient.

There are different types of endorsements, including:

• Blank endorsement: This includes your signature with no further instructions.
• Restrictive endorsement: This type of endorsement includes your signature and the words, "for deposit only." A check endorsed this way can be deposited into a bank account but not cashed.
• Endorsement in full: This type of endorsement creates a "third-party check" that you can give to someone else, who can then endorse it and cash or deposit it.
• Business endorsement: When a check needs to be made out to a business, it needs to be endorsed by someone who works for the company and lists their company title in print form.
• Mobile endorsement: Some banks require payees to endorse a check with "for mobile deposit only" to deposit a check remotely with a mobile banking app.

To endorse a check, you need to confirm the information of the check, identify who should endorse the check, and endorse/sign the check on the back of the check. Its important to make sure all the information is correct, and the name in the endorsement must match the payee name on the front of the check. If a check is made out to multiple people, both must sign it.