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.There are numerous reasons why a company would want to use a retention bonus letter. The City of Alameda offers hiring incentives for Academy Graduates. Click HERE (Download PDF reader)for the full hiring incentive policy. Bonuses are considered paid when received so it must be included in the employee's income. Identified in the letter of interest. f. This bonus announcement sample letter may be used as a memo to all workers or to an individual employee. Unincorporated Alameda County also includes other communities located in the foothills of the Coastal Range and in the eastern part of the. County.