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How to Obtain Proof of Federal Tax Identification Number (FEIN)

These instructions are specific to KitchenSync clients only.

1. An authorized party can contact the IRS by calling the Business & Specialty Tax Line at (800) 829-4933.

  • The hours of operation are 7:00 a.m. - 10:00 p.m. local time, Monday through Friday.
  • Examples of an authorized person include, but are not limited to, a sole proprietor, a partner in a partnership, a corporate officer, a trustee of a trust, or an executor of an estate.

2. A representative will ask for identifying information and verbally provide the FEIN.

3. Ask for a fax of the business' SS-4 application, or a letter from IRS with their FEIN and legal name listed. 

  • The KitchenSync fax number is 424.280.3013.
  • Official IRS documentation is required to open a payroll account. Verbal conveyance of this information and previous quarter tax returns are not sufficient.

Example Letter:

FEIN Example Letter