Independent form guide. BrieflyGo is not affiliated with or endorsed by IRS, USCIS, SSA, DOL, or any U.S. government agency. Official forms are sourced from public government websites.
Official form guide
IRS Form 8879 (SP) is the Signature Authorization for Filing by the IRS e-file, used to authorize electronic filing of income tax returns. It must be completed every time the Professional PIN Method is used.
Need help with Form 8879-SP?
Open it in the AI Editor for field guidance, checks, and PDF export.
Need help? AI Editor guides you through every field of Form 8879-SP.
Start filling →Form Overview
IRS Form 8879 (SP) is the Signature Authorization for Filing by the IRS e-file, used to authorize electronic filing of income tax returns. It must be completed every time the Professional PIN Method is used.
Plain English
This form allows a person or their preparer to sign an income tax return electronically through the IRS e-file system. By completing Form 8879 (SP), the filer confirms that the provided information is accurate and authorizes the electronic submission of the tax return for the specified year. The document serves as proof of authorization for the digital filing process.
Submission Date
AI co-pilot
Form selector
Filing a 1040-SS or 1040-PR
These filers only complete Line 4 of Part I and leave Lines 1, 2, 3, and 5 blank.
✓ Confirm that Lines 1, 2, 3, and 5 are blank when using this form.
Providing the SID via Form 9325
If you use Form 9325 to provide the Submission ID (SID), it does not need to be physically attached to Form 8879(SP).
✓ Ensure you still retain a copy of Form 9325 as required for retention.
Filing using Professional PIN Method
This form is specifically used when the Preparer uses their PIN method, requiring completion of Part III.
✓ Verify that Part II indicates which party authorizes the PIN creation/annotation.
The Form 8879 (SP) does not have a single filing deadline listed, but it must be completed prior to transmission. The ERO must receive the form before transmitting the electronic return or authorizing its transmission. If using Form 9325 to provide the SID, this document must also be retained according to IRS retention requirements.
Checklist
Name of Taxpayer
The individual filing the return. · Part I Header / Part II
Gross Income (Adjusted)
Amount from the tax return, entered in whole dollars. · Line 1, Part I
Taxpayer PIN
Five digits that are not all zero. · Part II (lines for Taxpayer)
ERO's EFIN/PIN
Six-digit EFIN followed by a five-digit PIN selected by the ERO. · Part III
Filer Authorization
Checkbox selection in Part II. · Part II (Checkboxes)
Submission ID (SID)
20-digit identification number assigned to the return. · Form Header / Part II Note
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.
Almost done reviewing the fields?
Fillable formOpen in Editor->The current edition is Revision January 2021 (Rev. enero de 2021). The form directs users to www.irs.gov/Form8879SP for the most recent information, but no specific changes are detailed in this source.
Quick Facts
Downloads
Should I send this form to the IRS?
Confusion
The general rule is not to send it, but you must if specifically requested by the IRS.
Safe check
Verify instructions or your specific filing requirement before mailing Form 8879(SP).
Do all filers need to complete every line on Part I?
Confusion
Declarants of Form 1040-SS or Form 1040-PR only fill out Line 4, leaving Lines 1, 2, 3, and 5 blank.
Safe check
Check the instructions to confirm which form type you are filing before filling Part I.
Workflow map
Before
Current
After
Often used with
⚠ If something goes wrong
This form allows a person or their preparer to sign an income tax return electronically through the IRS e-file system. By completing Form 8879 (SP), the filer confirms that the provided information is accurate and authorizes the electronic submission of the tax return for the specified year. The document serves as proof of authorization for the digital filing process.
The ERO (Electronic Return Originator) must obtain and retain Form 8879 (SP). This form is completed by the taxpayer or their preparer to authorize electronic submission through an ERO.
Part I collects information from the tax return, such as Adjusted Gross Income. Part II allows the preparer to annotate or create a PIN for the contributor(s), and Part III is used if both the Professional PIN Method is utilized and the taxpayer annotates their own PIN.
The Form 8879 (SP) must be completed each time the Professional PIN Method is used, or when the taxpayer authorizes the ERO to annotate or create the contributor's Personal Identification Number (PIN).
Crucially, the filer must NOT send this form directly to the IRS; instead, the ERO must retain it. The Form 8879 (SP) is provided to the taxpayer for completion and review via US Postal Service, private delivery service, email, website, or fax.
First, the ERO writes the taxpayer's name(s) and Social Security Number(s) at the top of Form 8879 (SP). Next, Part I is completed using figures from the tax return. The preparer then annotates or creates a PIN in Part II, confirming authorization.
The ERO must receive a duly completed and signed Form 8879 (SP) before transmitting the electronic tax return. Failure to provide this form means the declaration may not be properly authorized for e-file submission.
The general rule is not to send it, but you must if specifically requested by the IRS.
Source transparency
BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.
Review risky clauses in plain English, fix the document, and keep it moving toward signature.