Obtain the EIN from prior corporate tax returns or from bank accounts in the corporation’s name.
Call the IRS at (800) 829-4933 between the hours of 7 a.m. and 7 p.m., Monday through Friday. The hours are based on the time zone from which you are calling.
Provide the Business & Specialty Tax Specialist with the requested identifying information about your corporation. This information will range from your company’s name and business location to the EIN.
Verify you are an authorized individual to receive this information. Corporate officers are considered authorized individuals by the IRS, so you will need to provide your title or role in the corporation to verify you are an authorized individual.
Request a copy of your EIN assignment letter from the Business & Specialty Tax Specialist. This will likely be sent to the corporate address on file with the IRS, or you can provide an alternate business fax or mailing address for the corporation.