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26 CFR 301.6109-1 - Identifying numbers.
Any person required to furnish an employer identification number must apply for one, if not done so previously, on Form SS-4. A Form SS-4 may be obtained from
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Form SS-4 (Rev. Feburary 1998)
Partnerships. Use Form SS-4 to apply for an employer identification number (EIN). An. EIN is a nine-digit number (for example, 12-3456789) assigned to sole.
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Instructions for Form 720 (Rev. April 2017)
Apr 27, 2017 You also may apply for an EIN by faxing or mailing Form SS-4, Application for. Employer Identification Number, to the IRS. Disregarded
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