IMRF member records are filed by Social Security number. For this reason, it is extremely important that the member’s name and number reported to IMRF be identical to those that appear on his or her Social Security card. Social Security numbers are also required for federal and state tax reporting forms.
The Social Security Administration (SSA) offers two Web-based verification options employers can use to confirm that employee names and Social Security numbers match Social Security records. To use this online verification service, register with SSA Business Services Online /bsowelcome.htm.
If the member does not have a card, needs a duplicate card, or has changed his or her name, the member should complete Form SS-5, ”Application for Social Security Number,” and take it to the nearest Social Security office with proof of identity documents.
Form SS-5 is available from the Social Security Website (www.socialsecurity.gov), or the member can request one by calling Social Security at 1-800-772-1213 or visiting his or her local Social Security office.
To help protect members’ identities, IMRF uses Member ID ("MID") on IMRF correspondence. However, if the purpose of the letter requires the Social Security number, the complete number will continue to be shown.
In the past, IMRF used the Social Security Administration (SSA) employer number to identify IMRF employers. This number was printed on all IMRF documents issued. The SSA used to assign every state and local governmental employer who acquired Social Security coverage a nine-digit employer number. In Illinois, this number begins ”69 033,” for example: 69-033xxxx. Please note that this number differs from your Federal Employer Identification Number (FEIN), which begins ”36-” or ”37-”.
If your employer joined IMRF prior to January 9, 1993, IMRF will continue to use part of your SSA number, or the IMRF identification number.
If your employer joined IMRF on or after January 9, 1993, the employer was issued a five-digit IMRF identification number, such as 06110. IMRF will continue to assign identification numbers to all new IMRF employers. The number has no relationship to the employer’s SSA number.
The IRS issues each employer a nine-digit number to be used on IRS wage and tax reports, for example: 36-xxxxxxx or 37-xxxxxxx. The State of Illinois uses the same number for state wage and tax reports. In some instances, an employer may have more than one FEIN.