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E file authorization form 1120

IRS e-file Signature Authorization for Form 1120 - IRS.gov - irs-2026

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Form 8879-C is an IRS document used by corporate officers to electronically sign a corporation's income tax return for the year 2016 using a personal identification number (PIN). It outlines the responsibilities of both the corporate officer and the electronic return originator (ERO), emphasizing that the form should not be sent to the IRS but retained for records. The form includes sections for tax return information, declaration, and signature authorization.

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Click ‘Get Form’ to open it in the editor.
Begin by entering the Employer Identification Number (EIN) and the Name of the Corporation at the top of the form.
In Part I, input the total income, taxable income, total tax, amount owed, and overpayment as indicated on your corporation's Form 1120.
Proceed to Part II where you will declare and authorize your PIN. Choose whether to authorize your ERO to enter your PIN or enter it yourself.
Complete Part III by signing and dating the form. Ensure that all information is accurate before submission.

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