Payroll Services

Campus Address
120-30 USB
Mailing Address

120 University Services Building, Suite 30
Iowa City, IA 52242-1911
United States

Calls answered Mon-Fri, 8 a.m.-5 p.m.
In-person meetings by appointment only

The University of Iowa uses THE WORK NUMBER by Equifax Verification Services for employment verification and income verification.

THE WORK NUMBER Access Options for Verifiers:
Option a) 
Option b)  The Work Number Employee Service Center at 800-367-2884
                   Monday - Friday 9:00 a.m. - 8:00 p.m. ET

For students and scholars in need of immigration employment verification information, please contact your department HR Unit Representative.

Need Proof of Employment?

Simply give the verifier needing proof of your employment the following information:

  • The Your University ID Number from your ID Card: XXXXXXXX
  • The University of Iowa Employer Code:  
    •  Non-student employees use 13072  
    •  Student employees (current or past) use 13365 plus a Salary Key       

Need Proof of Employment Plus Income?  Or are you a Student employee?

Start by creating a Salary Key. A Salary Key is a six-digit number that allows one-time access to your salary information. Here’s how to create a salary key:

Step 1)  Access THE WORK NUMBER either by visiting the website at, or by telephone: 1-800-367-2884.  Select the Employee option and then choose Login.  First time users should choose Sign Up.

     On your first time login to access your information on The Work Number website, you will have a one-time initial enrollment for security measures. 

          Enter you University ID Number and Continue.                                

          Next, select “Forgot your PIN?”

          Follow the on-screen steps to set up your personal PIN.

Step 2) After your initial PIN setup, have the following information available:

  • The University of Iowa Employer Code: 
    • Employees 13072    
    • Student employees (current or past) 13365
  • Your University ID Number: XXXXXXXX
  • Your PIN

Step 3) Select the “Create a Salary Key” option and prepare to write down the six-digit number that is the Salary Key

Step 4) Give the verifier needing proof of your employment plus income the following information:

  • Your Social Security Number: XXX-XX-XXXX
  • The University of Iowa Employer Code: 
    • Employees 13072         
    • Students (current or past) 13365
  • Your salary key (from Step 3): XXXXXX

If you would like more information or would like to view a preview of the process, please visit, or contact the Payroll Services Office.


Common Questions about The Work Number

The Work Number is a service of Equifax that provides employees with an automated process to handle employment verifications. It allows our employees to have their employment and salary verified within a matter of minutes. This fast, secure service is used for mortgage applications, reference checks, loan applications, and apartment leases; anything that requires proof of employment. It is quick, accurate, and best of all, it’s easy.

Requested information is printed directly from their web site at or voiced and/or faxed to verifiers who access the system through an 800 number.

Employers contract with The Work Number to handle employment verifications for all employees paid by that employer, using data from their payroll files that are sent to The Work Number after each payroll run. The information allows The Work Number to provide:

  • Name
  • Most recent hire date
  • Termination date (if no longer employed)
  • Total time with the University of Iowa
  • Job title
  • Rate of pay
  • Gross earnings for current year to date, including base pay, overtime, bonuses, and commissions
  • Gross earnings for last year and the two previous years, including base pay, overtime, bonuses, and commissions

When employees provide verifiers with a salary key, they are giving the verifier permission to access their salary information.

A salary key is not required if the verifier does not need salary information. Salary keys are not required for employment verifications from The Work Number. Verification of employment includes job title, total time with the university, and start or termination date. The majority of our verifications will be verifications of employment, requiring no salary key.

To generate a salary key, the employee goes to the website at or dials 800-367-2884. The employee will be prompted to enter the employer code and a password. Once logged in, the employee will select the option to create a salary key and the system will generate a 6-digit random number. 

The salary key is displayed or voiced to the employee. A salary key is valid for one salary verification by one verifier. The employee must create a new salary ley for each verifier as needed, and may have up to three codes active at one time.

The Family Educational Rights and Privacy Act (FERPA) requires that students (either current or past) must give their consent to disclose their public records. By obtaining a salary key through The Work Numberthe student employee is giving consent to disclose their employment and income information.

Even though we will communicate these new procedures to every employee, we know that most employees will still have questions about how to obtain employment verification when they need it. Here is what unit staff can do to help make The Work Number a success.

  • When you receive an employment verification request, forward to Payroll Services. We will return the request to the verifier along with instructions on how to use The Work Number. Remember that the verification can be completed instantly with the proper codes, so we are not delaying the process by returning the request.
  • If verifiers or employees have any questions or need additional instructions on how to use the system, refer them to The Work Number client service center at 800-996-7566. The Client Service Center is available Monday-Friday, 7 a.m.-8 p.m. Central time.

If you have questions about this system, please call The Work Number client service team at 800-996-7566. Please contact The Work Number  regarding any employment or income verification issues prior to contacting Payroll Services.