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IRS Form 8879-CORP is an E-file Authorization for Corporations used with Form 1120 series returns by the Department of the Treasury Internal Revenue Service. It must be kept for records, and it governs electronic signature authorization.
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IRS Form 8879-CORP is an E-file Authorization for Corporations used with Form 1120 series returns by the Department of the Treasury Internal Revenue Service. It must be kept for records, and it governs electronic signature authorization.
Plain English
This form allows a corporation's officer to officially authorize an Electronic Return Originator (ERO) to electronically sign their company's tax return using a Personal Identification Number (PIN). By completing Form 8879-CORP, the corporation enables its return to be filed electronically with the IRS. This is necessary for filing various corporate income tax returns.
Submission Date
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Glossary Terms
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Filing Form 1120 series returns
Used to authorize PIN signature and electronic funds withdrawal for the corporation's federal taxes owed on that return.
✓ Check Part I lines 1 through 4.
Filing a Foreign Corporation Return
This form is used specifically when authorizing the e-file submission of a U.S. Income Tax Return of a Foreign Corporation.
✓ Ensure line 2 reflects this specific filing type.
When an ERO enters the PIN
The ERO firm name must be entered on the authorization line in Part II, not the individual preparing the return's name.
✓ Verify the entry before signing Part III.
This form does not have a specific filing deadline listed, but it must be completed by the corporate officer prior to transmission. The corporation is required to keep this form for 3 years from the return due date or IRS received date, whichever is later.
Checklist
Part I: Total income (Form 1120, line 11)
Whole dollar amount from Form 1120, line 11 · Part I
Part II: Officer's PIN Authorization
A specific box must be checked regarding who enters the PIN (ERO or Officer). · Part II
Part III: ERO’s signature/date
Signature and date of the ERO on Form 8879-CORP. · Part III
Payment Revocation Deadline
No later than 2 business days prior to the payment (settlement) date. · Part I/Instructions
Part I: Line 4 Total income
The corporation's form number and total income from the applicable line of the return. · Part I
ERO Responsibility (PIN entry)
Enter the ERO firm name, not the individual preparing the return's name. · Part II Authorization
Field map
Entity Info
1 items
Name and taxpayer ID of the entity claiming the credit.
Credit Info
1 items
Type of credit or incentive being claimed.
Calculation
2 items
The base amount used to calculate the credit.
Calculated credit amount after applying formulas and limitations.
Certification
1 items
Detailed breakdown supporting the credit calculation.
Signatures
1 items
Sign and date the form.
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Fillable formOpen in Editor->The current edition of IRS Form 8879-CORP is dated December 2024 (Rev. 12-2024). The form directs users to www.irs.gov/Form8879CORP for the latest information, and notes that it was updated to accommodate additional corporations.
Quick Facts
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Where do I send this form?
It should not be sent to the IRS unless requested by the agency, but it must be kept for your records.
Who needs to sign Part II?
An officer of the corporation must sign, date, and enter their title in Part II.
What is the ERO's responsibility after I sign?
The ERO must return the completed Form 8879-CORP to themselves (themselves) before transmitting the corporate return to the IRS.
Does this form apply if we are filing a standard Form 1120?
Yes, Part I covers Total income from Form 1120, line 11.
What is the ERO's PIN requirement?
The PIN must be five digits and cannot be all zeros when authorizing the ERO to enter it.
Do we need to fill out every section of Part I?
While not explicitly stated for each field, Part II requires signing/dating/titling, and Part III requires entering ERO's six-digit EFIN followed by their five-digit PIN.
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This form allows a corporation's officer to officially authorize an Electronic Return Originator (ERO) to electronically sign their company's tax return using a Personal Identification Number (PIN). By completing Form 8879-CORP, the corporation enables its return to be filed electronically with the IRS. This is necessary for filing various corporate income tax returns.
A corporate officer must complete and sign Form 8879-CORP when they want an electronic return originator (ERO) to enter their PIN to electronically sign a corporation’s income tax return.
Part I collects the corporation's name, Employer identification number, and total income amounts from specific lines on various corporate returns. Part II requires the officer to authorize the ERO firm name and provide their signature/date in relation to their PIN. Part III includes the ERO’s certification of their EFIN/PIN.
The form must be completed before the electronic return is transmitted (or released for transmission) by the ERO. The corporation must get a copy of its return, which this form accompanies.
Do not send Form 8879-CORP to the IRS unless requested to do so; instead, keep it for records. If sending comments, use the address: Internal Revenue Service, Tax Forms and Publications Division, 1111 Constitution Ave. NW, IR-6526, Washington, DC 20224.
First, the corporate officer verifies their income tax return and checks the appropriate box in Part II. The officer then signs, dates, and enters their title in Part II. Finally, the completed form is returned to the ERO who completes Part III with their signature and date before transmission.
The corporation’s return will not be transmitted to the IRS until the ERO receives the officer’s signed Form 8879-CORP; failure to provide it stops the filing process.
It should not be sent to the IRS unless requested by the agency, but it must be kept for your records.
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