Form 8879‑C, IRS E‑File Signature Authorization for Corporations, is the official document that authorizes the IRS to accept an electronically filed corporate income‑tax return (Form 1120, 1120‑S, 1120‑F, etc.). Instead of mailing a paper signature, corporations can sign electronically using this fillable PDF, saving time and reducing errors.
The form serves as a written declaration that the corporate officer signing the return has reviewed the return, the information is accurate, and the corporation authorizes the IRS to process the e‑filed return. It must be signed by an authorized officer (president, treasurer, or other corporate officer) and attached to the electronic filing.
Instead of downloading the PDF and opening a separate editor, simply click the "Fill out this form" button on this page. The Formize PDF Filler app will load instantly, letting you complete every field directly in your browser.
For detailed instructions, see the IRS Instructions for Form 8879‑C. If you have questions about eligibility, signing authority, or e‑file technical issues, visit the IRS Help & Resources page or contact your tax professional.
An officer of the corporation who is authorized to sign the tax return (e.g., president, treasurer, CEO) must sign Form 8879‑C.
Yes, you can draw a handwritten signature using the PDF filler’s signature tool, but the signature must be clear and legible.
Yes, any corporation that files its income‑tax return electronically must submit a signed Form 8879‑C as the electronic signature authorization.
Form 8879‑C must be signed and attached before the corporate tax return is transmitted electronically to the IRS, typically by the filing deadline (usually March 15 for calendar‑year corporations).
Correct the error on a new copy of Form 8879‑C, have the authorized officer re‑sign, and attach the updated form to the e‑filed return.
State tax authorities may have their own signature forms. Form 8879‑C is only for the federal corporate return.
Formize offers a free, no‑cost option for filling out and downloading IRS forms like 8879‑C.
The official IRS instructions are available at https://www.irs.gov/instructions/i8879c.
Form 8879-C – це одна з податкових форм, які є документами, які використовуються для подання відомостей про податки до відповідного податкового органу. Існують різні типи податкових форм, у тому числі федеральні, штатні та місцеві податкові форми, які можуть відрізнятися залежно від обставин і місцезнаходження платника податків.
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