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.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. This bonus announcement sample letter may be used as a memo to all workers or to an individual employee. An incentive bonus agreement is a contract between an employer and employee that details information about a cash bonus offered as an incentive. A common example of an incentive is the signon bonus given when a new employee accepts an employment offer. An incentive bonus agreement is a contract between an employer and employee that details information about a cash bonus offered as an incentive. It conveys appreciation, acknowledges hard work, and instills a sense of pride in the recipient. Com and completing the registration process, creating a resume, and searching for work.