Processing Time 10 business days or more. The verification of employment letter will include: - Employee's Name.An employment verification letter is a document that confirms an employee is currently or was previously employed at a certain company. The University of Chicago will use The Work Number® to provide automated employment and income verifications for our employees. Discover 7 different employment verification letter templates with different details for proof of employment or future job opportunities. Truework allows you to complete employee, employment and income verifications faster. Step 1: Complete Section 1: Borrower Information, Section 2: Borrowers Authorization, Understandings, and Certifications and Section 3 Employer Information. An employment verification letter can help prove income for a green card. Find a sample employment verification letter for immigration here. The Work Number database offers credentialed verifiers access to more than 716 million records for verifications of income and employment.