To verify employment you must contact the human resource office at the state agency that the individual has identified as a current or previous employer. Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States.Statement of verification: The letter should clearly state the purpose of the verification and what information is being confirmed. An employment verification letter is an acknowledgment from an employer confirming an employee's job status, position, salary, and duration. Here's how to write an employment verification letter, including information on formatting and proofreading. An employment verification letter may be requested if you're applying for a mortgage or new job. I authorize my employer to release information regarding my employment, salary, and schedule. Employee Signature. Date. "Explore our form designed to confirm income and employment history of previous or current employees. We estimate that you will need an average of 10 minutes to review the instructions, find the information, and complete this form.