Edit, Download, and Sign the IRS e-file Signature Authorization Form 8878
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How do I fill this out?
To fill out Form 8878, begin by entering the taxpayer's and spouse's information, including names and social security numbers. Next, indicate which extension form you authorize your ERO to file. Finally, sign and date the form to complete the process.

How to fill out the IRS e-file Signature Authorization Form 8878?
1
Enter taxpayer's and spouse's information.
2
Select the extension form authorizing ERO filing.
3
Sign and date the form.
4
Ensure all information is accurate.
5
Submit the completed form to your ERO.
Who needs the IRS e-file Signature Authorization Form 8878?
1
Individual taxpayers filing Form 4868 need this form to authorize their ERO.
2
Married couples filing jointly must complete this form if one spouse is entering their PIN.
3
Tax professionals need this form to facilitate client e-filing.
4
Taxpayers using the Practitioner PIN method to extend their filing deadline require this form.
5
Anyone needing electronic return services for tax extensions should use Form 8878.
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What are the instructions for submitting this form?
Submit Form 8878 via your electronic return originator (ERO). You may need to provide your ERO with the completed form directly, either through email or mail. Always ensure to keep a copy for your records while the original is with your ERO.
What are the important dates for this form in 2024 and 2025?
For the 2024 tax year, the deadline to file Form 8878 is typically April 15, 2024. If you apply for an extension, the deadline may change. Be sure to check IRS guidelines for 2025 deadlines as they become available.

What is the purpose of this form?
The purpose of Form 8878 is to authorize an electronic return originator (ERO) to file on behalf of taxpayers. This form is integral for individuals using the Practitioner PIN method when filing for an extension. By signing Form 8878, taxpayers affirm the accuracy of their information and consent to the ERO's submission.

Tell me about this form and its components and fields line-by-line.

- 1. Taxpayer's Name: The full name of the taxpayer.
- 2. Social Security Number: The taxpayer's social security number.
- 3. Spouse's Name: The full name of the taxpayer's spouse if applicable.
- 4. Spouse's Social Security Number: The spouse's social security number.
- 5. PIN: The personal identification number used as electronic signature.
What happens if I fail to submit this form?
Failing to submit Form 8878 may delay the processing of your tax extension. This could result in penalties for late filing if the extension is not formally recognized. It’s crucial to submit the form to your ERO to avoid complications with your tax obligations.
- Penalty Fees: Late submission can incur penalties from the IRS.
- Processing Delays: Failure to file can delay the processing of your tax return.
- Inaccurate Filing: Incomplete forms may result in inaccurate tax filings.
How do I know when to use this form?

- 1. Tax Extensions: Submit when filing for an extension of time to file taxes.
- 2. Electronic Filing Authorization: Used to authorize EROs for seamless electronic submissions.
- 3. Practitioner PIN Method: Necessitated when using the Practitioner PIN method for extensions.
Frequently Asked Questions
What is Form 8878?
Form 8878 is the IRS e-file signature authorization for extending your tax filing deadline.
How do I fill out Form 8878?
Fill out the form by entering your personal information and signing it as required.
Can I edit Form 8878 online?
Yes, you can easily edit Form 8878 using the PrintFriendly PDF editor.
How do I sign the PDF?
You can sign the PDF using the signature tool available on PrintFriendly.
What should I do with Form 8878 after filling it out?
Send the completed form to your electronic return originator (ERO).
Is Form 8878 required for all tax extensions?
It is required when using the Practitioner PIN method.
Where can I find more information about Form 8878?
Additional details can be found on the IRS website or through your tax professional.
Can I share my filled Form 8878?
Yes, you can generate a shareable link or download it to send directly.
Do I need a PIN for Form 8878?
Yes, a personal identification number (PIN) is necessary for electronic filing.
How long should I keep Form 8878?
Retain the completed Form 8878 for at least three years.