There are two ways to check leave balance for employees
Method 1: Leave balance via Leave Types
From the left-hand side navigation bar,
Click on Reports > Leave Types
Method 2: Leave balance via Employee's Profile
From the left-hand side navigation bar,
Click on Employees > All Employees > Select Employee: "view" button (eye icon)
> (Employee's Profile) Entitlements > under Leaves.
Need guidance for the employee's leave balance, kindly refer to this.