Want to know how to make your employees feel valued? Select a bonus letter example that truly speaks to them with our template and guide.In this article, we discuss how to write a business proposal letter and we offer sample letters and templates you can use as a guide. The owner must agree to allow access to the City for inspection. What is a Bonus Plan? A bonus plan is an agreement between the employer and employee to pay out a predetermined amount of money based on performance. The Wage Tax must be filed quarterly and paid on a schedule that corresponds with how much money is withheld from employees' paychecks.