This form is a template an employer may use to obtain written authorization to make payroll deductions for a wage advance provided to an employee. This guide explains how teachers can apply for salary step placement and differentials, and provides salary differential information for school social workers.Processing payroll in New York can be difficult whether a business is located in NYC, Westchester, or elsewhere. This guide can help with New York payroll. How do I fill this out? There is no law involved. It is entirely up to the employer.