Www IRS Govforms Pubsabout Form 8879 Cabout Form 8879 C, IRS E File Signature Authorization For

Use a Www irs govforms pubsabout form 8879 cAbout Form 8879 C, IRS E file Signature Authorization For 2021 template to make your document workflow more streamlined.

What Form 8879-C does

Form 8879-C is the IRS e-file signature authorization used by a corporation to approve electronic transmission of its completed return through an authorized provider. In plain language, the corporate officer reviews the return information, signs the authorization, and gives the preparer permission to transmit it. The form identifies the corporation, tax period, return type, and filing amounts. signNow can upload the prepared PDF, detect fillable fields, route the officer’s signature, and store the completed authorization with an audit trail; it does not replace the IRS e-file provider or file the return itself.

Who completes Form 8879-C

Corporate tax departments use Form 8879-C to authorize an electronic return transmitted by an authorized IRS e-file provider. signNow helps route the completed authorization to the designated corporate officer while preserving the signed record and audit history.
Tax professionals and accounting firms prepare Form 8879-C after completing a corporation’s electronic return. They can upload the authorization, assign the corporate officer’s signature field, and retain the signed form with supporting e-file documentation.

Corporate officers

A corporation’s authorized officer signs Form 8879-C after reviewing the electronic return and authorizes the IRS e-file provider to transmit it. The document should identify the corporation, tax period, return type, and relevant electronic filing amounts exactly as prepared.

Tax professionals

Tax preparers use Form 8879-C as the signature authorization supporting a corporation’s electronic filing. signNow can collect the officer’s signature remotely, then preserve the completed authorization and audit trail for the preparer’s records.

How the Form 8879-C workflow works

The signNow workflow follows the document from prepared IRS authorization through officer signature and controlled retention.

Upload form: Upload the prepared IRS authorization PDF.
Add fields: Place the officer’s signature and date fields.
Send request: Send the authorization to the corporate officer.
Archive record: Store the completed form with its audit trail.

Setting	Recommendation
Authentication method	Email link with SMS OTP
Signature type	Electronic officer signature
Audit trail	Enabled for every authorization
Document retention	Three years under IRC §6501(a)
Encryption	TLS 1.2 or TLS 1.3 in transit

Use the web app when a tax preparer needs to upload Form 8879-C, place the corporate officer’s signature field, and monitor completion from a desktop workflow.
Use the mobile app when an authorized corporate officer needs to review the prepared Form 8879-C and sign from an iOS or Android device.
Use kiosk mode when the officer signs on a supervised office device after reviewing the corporation’s completed authorization and confirming the return details.
Use a shareable signing link when the preparer needs to send Form 8879-C through an approved channel without requiring the officer to create a signNow account.

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Authenticate signer:

Confirm the signer’s email or configured authentication method before granting access.

Capture timestamp:

Record the signing event with date, time, and signer activity.

Hash document:

Protect the completed document with document-integrity controls.

Seal record:

Seal the signed Form 8879-C against unnoticed content changes.

Log activity:

Preserve signer actions, access events, and completion status.

Retrieve evidence:

Export the audit trail with the signed authorization for retention.

Signer authentication options

Email link:

Email authentication

SMS verification:

SMS OTP

Two-factor sign-in:

Two-factor authentication

ID verification:

Identity verification

PKI option:

PKI signing

X.509 support:

X.509 certificates

Find and fill out the correct wwwirsgovforms pubsabout form 8879 cabout form 8879 c irs e file signature authorization for

airSlate SignNow helps you fill in and sign documents in minutes, error-free. Choose the correct version of the editable PDF form from the list and get started filling it out.

Versions	Form popularity	Fillable & printable
IRS 8879-C 2021	4.8 Satisfied (2628 Votes)
IRS 8879-C 2020	4.8 Satisfied (2218 Votes)
IRS 8879-C 2018	4.8 Satisfied (3112 Votes)
IRS 8879-C 2017	4.8 Satisfied (137 Votes)
IRS 8879-C 2016	4.7 Satisfied (535 Votes)

Best practices for Form 8879-C

Accurate return details, correct signer assignment, and controlled recordkeeping reduce avoidable problems with corporate e-file authorizations.

Verify every IRS field before sending

Upload the prepared IRS authorization accurately. Confirm the corporation name, tax year, return type, and electronic filing amounts before assigning the officer’s signature field. A mismatch between Form 8879-C and the transmitted return can require correction by the tax preparer.

Assign the authorized officer correctly

Assign the signature role to the authorized corporate officer named in the filing workflow. Do not substitute a preparer’s signature for the officer’s authorization, because Form 8879-C documents the corporation’s approval of electronic transmission.

Restrict access to tax records

Keep the completed Form 8879-C with its audit trail and related e-file records. Restrict access to tax personnel and authorized corporate users because the form contains taxpayer and filing information.

Archive the signed authorization securely

Export the signed authorization and completion history after signing. Store the PDF and audit evidence in the corporation’s controlled records system using a retention policy based on applicable IRS requirements.

Platform requirements for signing

Form 8879-C can be prepared and signed through signNow in supported browsers including Chrome, Firefox, Safari, and Edge. Desktop workflows support Windows and macOS, while mobile signing is available through iOS and Android apps using TLS 1.2 or TLS 1.3 connections.

Browsers Chrome, Firefox, Safari, Edge
Operating systems Windows, macOS, iOS, Android
Secure connection TLS 1.2 or TLS 1.3

Organizations handling corporate tax records should use managed Windows, macOS, iOS, or Android devices, restrict access through internal policies, and configure signNow permissions for tax preparers and authorized officers. Enterprise deployments may also evaluate SSO, API access, and retention controls before connecting Form 8879-C workflows to corporate systems.

Connect Form 8879-C workflows

Connect corporate e-file authorization workflows with CRM, ERP, cloud storage, and productivity systems to route prepared forms, preserve signed records, and support controlled tax-document access.

Prepare document

Upload the prepared Form 8879-C and verify the corporation’s return details.

Deliver to officer

Send the authorization to the named corporate officer through signNow.

Officer turnaround

The officer reviews the authorization and applies the electronic signature.

Complete and archive

Download the completed form and audit trail for controlled tax-record storage.

Privacy pitfalls for Form 8879-C

Sending Form 8879-C to the wrong corporate officer can leave the electronic filing authorization unsupported by the required signer’s approval.
Including taxpayer identification or return details in an unprotected email can expose sensitive corporate tax information to unauthorized recipients.
Failing to capture electronic consent and signer attribution can weaken the evidence supporting the officer’s Form 8879-C signature.
Allowing broad access to completed authorizations can disclose corporate tax data beyond the preparer and authorized officer.

Risks of incorrect authorization

Signer defect

Wrong authorized signer

Filing evidence

Unsupported e-file authorization

Record weakness

Incomplete audit evidence

IRS mismatch

Incorrect return details

signNow	DocuSign	Adobe Acrobat Sign	PandaDoc
Upload and e-sign Form 8879-C	Yes	Not verified	Not verified
Audit trail	Yes	Not verified	Not verified
Mobile signing	Yes	Not verified	Not verified
Corporate workflow integrations	Yes	Not verified	Not verified

Form 8879-C questions and troubleshooting

These answers separate signNow workflow questions from the IRS rules governing corporate electronic filing authorizations.

Form 8879-C supports the corporation’s authorization of electronic filing, but signNow does not replace the IRS e-file provider or transmit the return. The tax preparer must complete the return and follow IRS filing procedures separately.

Check that the corporate officer’s email address is correct, resend the invitation, and review spam filtering. Business plans include audit trails and templates; stronger authentication options may depend on the configured plan and workflow.

Use signNow’s field placement tools to assign the signature field to the authorized corporate officer. Review the prepared return details before sending, because a completed signature does not correct inaccurate IRS information.

A typed or drawn signature can provide an electronic signature when intent, consent, attribution, and record retention are established. ESIGN and UETA provide the legal framework, while the IRS form and filing instructions govern Form 8879-C use.

The signNow Business plan is listed at $8 per user per month with annual billing and includes legally binding eSignatures, audit trails, and templates. The product plan does not determine whether a corporation qualifies to use Form 8879-C.

Retain the signed authorization, completion evidence, and related tax records under the corporation’s documented IRS recordkeeping policy. Federal tax assessment rules under IRC §6501(a) generally use a three-year period, with longer periods in specified circumstances.

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