A state of consistency that exists between a specific firm and other firms in the same industry or sector. This involves the application of consistent measurement methods and concepts, accounting rules and policies, for a group of related accounts and items by various entities operating in the same or a similar line of business. In turn, this impacts the exercise of preparing the financial statements and accounts. And as a result,  this type of consistency facilitates the comparison of the performance of an entity with the performance of another.

In addition to vertical consistency, consistency comes in other forms, which are: horizontal consistency and vertical consistency.