Form 8879 C IRS E File Signature Authorization For Form 1120 (2016)
Use a Form 8879 C IRS E file Signature Authorization For Form 1120 2016 template to make your document workflow more streamlined.
What Form 8879 C does
Form 8879 C IRS E File Signature Authorization For Form 1120 (2016) is the authorization a corporate taxpayer uses to approve electronic filing of its Form 1120 through an authorized signer. It is not the income tax return itself; it records approval for the e-filed return. A tax professional prepares the associated Form 1120, completes the authorization workflow, and obtains the designated corporate officer’s signature. With signNow, the 2016 PDF can be uploaded, prepared with signature and date fields, routed to the signer, completed electronically, and retained with an audit trail.
Who uses Form 8879 C
Tax preparation firms use Form 8879 C to obtain an authorized corporate officer’s electronic approval after preparing Form 1120. signNow lets staff upload the authorization, detect fillable areas, route it to the designated signer, and preserve the completed record with an audit trail. Corporate finance departments use Form 8879 C when an authorized officer must approve an electronically filed Form 1120. A finance administrator can prepare the document in signNow, assign signature fields to the correct officer, and retain the signed authorization alongside filing records.
How to complete Form 8879 C
Use signNow to prepare the authorization, route it to the responsible corporate officer, and preserve evidence of completion.
Upload form:
Upload the 2016 authorization PDF to signNow and review the imported document. Prepare fields:
Confirm detected fields and place the corporate officer’s signature and date fields. Send authorization:
Enter the authorized signer’s email address and send Form 8879 C securely. Complete record:
Review, e-sign, download, and retain the completed authorization with its audit trail.
Key features for Form 8879 C
signNow connects document preparation, signer routing, audit evidence, and retention for the Form 8879 C authorization workflow.
Form preparation
Upload the 2016 Form 8879 C PDF and use signNow’s field detection to identify areas requiring completion or signature before sending it to the authorized corporate officer.
Signer routing
Assign the signature and date fields to the responsible corporate officer, reducing the risk that the authorization is completed by an unintended recipient.
Remote signing
Send the authorization by email or a controlled signing link, allowing the signer to review the Form 1120 authorization remotely without exchanging paper copies.
Audit trail
Capture signer actions, timestamps, and document history in an audit trail that can accompany the completed Form 8879 C record.
Reusable template
Use signNow’s templates to standardize recurring Form 8879 C workflows while keeping each authorization associated with the appropriate Form 1120 filing.
Record retention
Download the signed authorization and completion evidence for secure retention according to the organization’s IRS recordkeeping policy and applicable retention rules.
Platform requirements for signing
Form 8879 C can be prepared and signed in signNow through Chrome, Firefox, Safari, or Edge on Windows 10, Windows 11, macOS, iOS, or Android. The connection uses TLS 1.2 or TLS 1.3, and signNow mobile apps support document signing on supported iOS and Android devices.
Browsers Chrome, Firefox, Safari, and Edge Operating systems Windows 10, Windows 11, macOS, iOS, and Android Secure connection TLS 1.2 or TLS 1.3 connection
Tax professionals should use managed Windows or macOS devices when handling Form 8879 C and Form 1120 records. Administrators can evaluate API access, SSO provisioning, and retention controls against internal policy. Configure authentication and access permissions before sending an authorization containing corporate tax information, and preserve the signed PDF with its audit evidence.
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Security for Form 8879 C records
Stored data:
Data in transit:
Security certification:
Information security:
Signature compliance:
Regulated data:
Who handles this authorization
Tax preparation firms
Tax preparation firms prepare and route Form 8879 C to corporate officers after completing Form 1120, then retain the signed authorization and audit evidence with the client’s filing records.
Corporate finance teams
Corporate finance teams use Form 8879 C to document an authorized officer’s approval for electronic filing and coordinate completion, storage, and access through a controlled signNow workflow.
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| 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) |
Privacy and disclosure pitfalls
Sending Form 8879 C to an unverified email address can expose corporate tax information and the authorized officer’s identifying details. A missing electronic-consent record may make it harder to demonstrate that the signer intended to approve the Form 1120 e-file authorization. Assigning signature fields to the wrong recipient can leave the authorization signed by someone without the required corporate authority. Storing the signed authorization without its audit trail can weaken the record’s ability to show who signed, when, and through which workflow.
Risks of incomplete authorization
Authorization may lack the required corporate approval.
Electronic-signature evidence may be incomplete.
Signer attribution becomes harder to establish.
IRS examination support may be incomplete.
Form 8879 C processing stages
The workflow moves from document preparation through signer delivery, approval, and retention of the completed authorization.
Prepare document
Deliver to signer
Signer turnaround
Archive completion
Retention practices for Form 8879 C
Keep the signed authorization, related Form 1120 records, and audit evidence together while applying the applicable IRS retention rule.
Apply the applicable IRS retention period
Export the authorization and audit trail
Limit access to corporate tax records
Review every authorization before filing
Inside the Form 8879 C audit trail
The audit trail preserves technical evidence around the Form 8879 C signing event without replacing the tax professional’s review of the authorization.
Authenticate signer:
Capture timestamps:
Track document history:
Seal document:
Record activity:
Export audit trail:
Recommended Form 8879 C setup
Configure the workflow around signer identity, audit evidence, secure transmission, and the IRS retention period applicable to the related filing.
| Setting | Recommendation |
|---|---|
| Authentication method | Email verification with optional SMS code |
| Signature type | Electronic signature with signer intent |
| Audit trail | Enable completion history and export |
| Document retention | Three years from filing under IRC §6501(a) |
| Encryption | TLS 1.2 or TLS 1.3 and AES-256 |
Form 8879 C troubleshooting
Resolve signer, field, plan, and recordkeeping questions before treating Form 8879 C as complete.
Business includes legally binding eSignatures, audit trails, templates, and mobile apps. Upload the Form 8879 C PDF, assign the authorized corporate officer, and confirm the signer’s email before sending. Business Premium adds bulk send, while Enterprise adds advanced signer authentication for organizations requiring stronger controls.
Form 8879 C is an IRS e-file signature authorization for Form 1120, not the corporate income tax return itself. Use signNow to complete and evidence the authorization, then follow the tax professional’s and IRS filing process for submitting the associated Form 1120.
Business includes audit trails and legally binding eSignatures, which can document the signer’s actions, timestamps, and document history. signNow states that its eSignatures comply with ESIGN and UETA; retain the completed Form 8879 C according to applicable IRS recordkeeping policy.
Use signNow’s field detection after uploading the 2016 PDF, then inspect every imported field before sending. If a required area is missing or misplaced, add or reposition the field manually and verify the authorized officer’s assignment before delivery.
Business Premium includes bulk send, but each Form 8879 C still needs the correct company, Form 1120 context, and authorized signer. Review every generated document before delivery because bulk processing does not replace tax-preparer verification of individual filing details.
signNow encrypts data in transit with TLS 1.2 or TLS 1.3 and at rest with AES-256. Its compliance materials list SOC 2 Type II and ISO 27001 certification. Apply organizational access controls and retain the completed authorization and audit trail securely.
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