Do I need a paid‑preparer to use Form 8879‑Corp?

No. The form can be completed by any authorized corporate officer. If a paid preparer is used, they must also sign the form.

Can I submit Form 8879‑Corp directly to the IRS?

Form 8879‑Corp is attached to the electronic return through your tax software. The IRS does not accept it as a standalone filing.

What if I make a mistake after signing?

Correct the error in the PDF filler, re‑sign, and download a new copy. The previous version should be discarded.

Is an electronic signature legally valid for Form 8879‑Corp?

Yes. The IRS accepts electronic signatures on Form 8879‑Corp when the signature is created using a compliant e‑signature tool such as Formize.

Do I need to print the form after filling it out?

Printing is optional. Keep the signed PDF for your records and attach it to the e‑file. Some corporations retain a printed copy for internal archives.

How long is the Form 8879‑Corp valid?

The form is valid for the tax year shown on the document. A new Form 8879‑Corp is required for each filing year.

Can I use Form 8879‑Corp for an amended return?

Yes, but you must use the version of the form that matches the tax year of the amended return.

What if my corporation has multiple authorized signers?

Only one authorized officer needs to sign the Form 8879‑Corp. Additional signatures are not required.

IRS Form 8879‑Corp – Fillable PDF Signature Authorization

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IRS Form 8879‑Corp – Fillable PDF Signature Authorization

Form 8879‑Corp is the IRS e‑file signature authorization used by corporations, S corporations, and certain other entities to sign their income tax return (Form 1120, 1120‑S, etc.). Instead of printing, signing, and mailing a paper copy, you can now complete the form instantly with Formize’s fillable PDF tool.

What Is Form 8879‑Corp?

This two‑page PDF authorizes the IRS to accept an electronic signature for the corporate tax return. It must be signed by an authorized officer (usually the president, CEO, or a partner) and the paid‑preparer, if applicable.

How to Fill Out Form 8879‑Corp Online

Follow the simple steps below – no PDF editor required. Just click the button on this page and let the Formize PDF Filler load.

Common Mistakes to Avoid

Leaving the "Date Signed" field blank. The IRS rejects unsigned forms.
Using the wrong tax year. Verify the year at the top of the form.
Signing with a handwritten signature image. Use the built‑in electronic signature feature.
Incorrect EIN. Double‑check the employer identification number.

Where to Submit the Completed Form

After you finish, download the signed PDF and attach it to your e‑file submission through your tax software or send it to your paid‑preparer. The IRS does not accept a separate mailed copy unless you are filing a paper return.

Need help? Review the official IRS instructions for Form 8879‑Corp.

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FAQ

Do I need a paid‑preparer to use Form 8879‑Corp?
No. The form can be completed by any authorized corporate officer. If a paid preparer is used, they must also sign the form.
Can I submit Form 8879‑Corp directly to the IRS?
Form 8879‑Corp is attached to the electronic return through your tax software. The IRS does not accept it as a standalone filing.
What if I make a mistake after signing?
Correct the error in the PDF filler, re‑sign, and download a new copy. The previous version should be discarded.
Is an electronic signature legally valid for Form 8879‑Corp?
Yes. The IRS accepts electronic signatures on Form 8879‑Corp when the signature is created using a compliant e‑signature tool such as Formize.
Do I need to print the form after filling it out?
Printing is optional. Keep the signed PDF for your records and attach it to the e‑file. Some corporations retain a printed copy for internal archives.
How long is the Form 8879‑Corp valid?
The form is valid for the tax year shown on the document. A new Form 8879‑Corp is required for each filing year.
Can I use Form 8879‑Corp for an amended return?
Yes, but you must use the version of the form that matches the tax year of the amended return.
What if my corporation has multiple authorized signers?
Only one authorized officer needs to sign the Form 8879‑Corp. Additional signatures are not required.

HOW TO

How to fill out Form 8879-C for free, online in 5 easy steps:

1
Click the Fill‑Out Button
Press the "Fill out this form" button on the page. The Formize PDF Filler app will open in a new tab.
2
Wait for the Filler to Load
A short loading screen appears while the fillable PDF is prepared. No downloads are required.
3
Complete All Required Fields
Enter the corporation’s name, EIN, tax year, and authorized officer’s information. Use the on‑screen signature tool to sign.
4
Review for Accuracy
Double‑check dates, numbers, and signatures. The filler highlights any missing required fields.
5
Save or Export the Signed PDF
When finished, click "Save" to download the signed PDF. Attach it to your e‑file submission or give it to your tax preparer.

ABOUT

Tax forms

Form 8879-C is one of Tax forms that are documents used to report income, deductions, and tax liability to the relevant tax authority. These forms are an essential part of the tax filing process and are used to ensure individuals and businesses comply with tax laws and accurately calculate their tax obligations.

The specific tax forms required can vary depending on factors such as an individual's filing status, sources of income, and the country's tax laws. However, here are some common types of tax forms:

Individual Income Tax Forms: These forms, such as the 1040 series in the United States, are used by individuals to report their income, claim deductions and credits, and calculate their tax liability.

Business Tax Forms: Businesses, including sole proprietorships, partnerships, corporations, and self-employed individuals, may have to file various forms to report their income, expenses, and taxes owed. Examples include Schedule C (Profit or Loss from Business) and Form 1120 (U.S. Corporation Income Tax Return).

Employment Tax Forms: Employers are required to report employee wages and withhold and remit payroll taxes. Forms such as W-2 (Wage and Tax Statement) and 941 (Employer's Quarterly Federal Tax Return) are used for this purpose.

Investment and Retirement Account Forms: These forms are used to report investment income, capital gains, and losses, as well as contributions and distributions from retirement accounts. Examples include Form 1099-DIV (Dividends and Distributions) and Form 5498 (IRA Contribution Information).

Estate and Gift Tax Forms: When a person passes away or makes significant gifts, specific forms such as Form 706 (United States Estate (and Generation-Skipping Transfer) Tax Return) and Form 709 (United States Gift (and Generation-Skipping Transfer) Tax Return) are used to report and calculate any applicable estate or gift taxes.

It is important to note that tax laws and forms can change over time, so individuals and businesses should consult the relevant tax authority or seek professional tax advice to ensure compliance with the current requirements.

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