Toast checks have three states:  Open, Paid, and Closed.  This article will help you understand the important differences between these states and why that is important to restaurant operations.

Open:  Checks are considered "Open" when the check has been created but does not yet have a tender applied.

Paid:  Checks are considered "Paid" when a form of tender has been applied to the check that allows a tip, such as Credit or Gift Cards.

Closed:  Checks are considered "Closed" when a tip has been applied to tender or a cash tender was used.