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Official form guide
IRS Form 4868 is an automatic extension request for filing a U.S. Personal Income Tax Return, governed by the Department of the Treasury and Internal Revenue Service. One way to file electronically is through the IRS e-file program.
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IRS Form 4868 is an automatic extension request for filing a U.S. Personal Income Tax Return, governed by the Department of the Treasury and Internal Revenue Service. One way to file electronically is through the IRS e-file program.
Plain English
This form allows a taxpayer to automatically ask the IRS for more time to submit their personal income tax return. By filing this Form 4868, the filer signals they need an extension without having to manually request it. The form can be submitted electronically or by mail along with an estimated tax payment.
Submission Date
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Filing the GST Tax Return
This form is used to extend the deadline for filing the Gift and Generation-Skipping Transfer tax return.
✓ Check if you are extending a Gift/GST return.
Filing as a Fiscal Year Entity
If you file based on a fiscal year, you must submit this form in paper format.
✓ Confirm your filing status is not calendar-year.
Making an Electronic Payment Only
The IRS automatically processes the extension when you pay all or part of your estimated tax liability electronically.
✓ Ensure payment covers at least partial estimated tax owed.
No separate submission required if paying electronically
The form itself requests an automatic extension, meaning the filing action triggers the extension period. The source does not specify a hard deadline date following submission, but submitting Form 4868 initiates the request for more time to file.
Checklist
Purpose of Form
Requesting a 6-month extension (or 4 months) for personal income tax return · General Instructions
Payment Requirement
Must estimate total tax owed and subtract payments made (Lines 4, 5, & 6) · Form p.1
Electronic Filing Method
Via IRS e-file program or through a professional preparer using e-file · Form p.1
Paper Filing Requirement
Must submit in paper format if you are a taxpayer who files on a fiscal year basis · Form p.1
Electronic Payment Note
Do not file Form 4868 if using an electronic payment method that indicates it is for an extension · Form p.3
Automatic Extension Trigger
Paying part or all of your estimated income tax electronically · Form p.3
Field map
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
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Fillable formOpen in Editor->The current edition is 20/25, and users can visit www.irs.gov/Form4868SP for the most recent information.
Quick Facts
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What do I put in Line 2 if we are filing jointly?
Enter the Social Security Number (SSN) that appears first on your joint tax return.
→ Confirm which SSN is listed first on your main income tax form.
How does paying electronically affect my Form 4868 filing?
If you pay using an electronic method, you must still file the Form 4868 to request the extension; do not skip it just because you paid online.
→ Check the instructions regarding payment methods and ensure you are submitting both a payment confirmation AND the form.
What if we filed separately but want to file jointly later?
Record the total amount paid using both Forms 4868 on the corresponding line of your joint return for 2025.
→ Ensure the combined payments from all separate filings are totaled correctly before entering them into the joint filing section.
What do I put in Line 3 if we are filing jointly?
Enter the other spouse's SSN that appears on the joint tax return.
→ Verify this is not the same as the number entered in Line 2.
Do I need to file Form 8822 if I just change my address?
Yes, you must use Form 8822, Change of Address, to notify the IRS; simply putting a new address on Form 4868 is not enough to update your file.
→ Always submit Form 8822 when moving, even if you are filing Form 4868.
What do I put in Line 4 if my estimated tax is zero?
Enter “-0-” for the Total of the Estimated Tax Liability you owe for 2025.
→ Double-check that your calculation results in exactly zero before entering "-0-".
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This form allows a taxpayer to automatically ask the IRS for more time to submit their personal income tax return. By filing this Form 4868, the filer signals they need an extension without having to manually request it. The form can be submitted electronically or by mail along with an estimated tax payment.
Anyone who needs to file a U.S. Personal Income Tax Return may use Form 4868 to request automatic filing time.
The form collects information that identifies the filer, such as required SSNs (or EIN for trusts/estates), and details how the tax is being reported. If filing jointly, Line 2 requires the primary SSN, and Line 3 requires the secondary SSN.
The source does not state a specific deadline; rather, it describes the action of requesting an extension automatically by submitting Form 4868.
If mailing in paper form, the destination depends on where the filer lives. For example, residents of Texas send it to Austin, TX P.O. Box 73301-0045.
The filer completes Form 4868 and then submits it. If mailing, they attach the estimated tax payment (optional). When filing electronically, the IRS e-file program processes the submission, and an electronic acknowledgment is received.
Enter the Social Security Number (SSN) that appears first on your joint tax return. Confirm which SSN is listed first on your main income tax form.
If you pay using an electronic method, you must still file the Form 4868 to request the extension; do not skip it just because you paid online. Check the instructions regarding payment methods and ensure you are submitting both a payment confirmation AND the form.
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