Fiscal-Year IRS Form 4868 — File a No-Payment Extension by Mail
This workflow is limited to domestic fiscal-year individuals using the 2025 Form 4868 before the original due date of their return. Fiscal-year taxpayers must request the extension on paper. PostalForm fills the official form and computes the no-payment IRS destination from the taxpayer's U.S. state. The extension is for filing only; tax remains due on the original due date, and PostalForm does not enclose a check or other payment.
We prepare your document, print it, and mail it for you — First-Class, or USPS Certified Mail with proof of delivery when you want it. You preview the exact PDF before you pay.
PostalForm is not affiliated with Internal Revenue Service.
Need more context?
The form is ready to fill now. If you want supporting instructions, mailing notes, or source links, they are below.
Important details+
This workflow is only for a domestic fiscal-year individual whose tax year began in 2025 and whose original return due date has not passed. The IRS requires fiscal-year taxpayers to request the extension on paper. We prepare the current form and route the no-payment mailing from the state where you live. You remain responsible for paying tax by the original due date and allowing enough time for a timely postmark.
What you need+
- Your name(s) and mailing address
- Your SSN or ITIN, plus your spouse's SSN for joint filers
- A fiscal year that began in 2025 and a return whose original due date has not passed
- The domestic U.S. state where you live, used to select the no-payment IRS service center
- A good-faith estimate of your 2025 total tax and the payments you have already made
- A separate plan to pay any tax due; PostalForm will not enclose a payment
- No signature and no explanation — Form 4868 requires neither
Form summary+
This workflow is limited to domestic fiscal-year individuals using the 2025 Form 4868 before the original due date of their return. Fiscal-year taxpayers must request the extension on paper. PostalForm fills the official form and computes the no-payment IRS destination from the taxpayer's U.S. state. The extension is for filing only; tax remains due on the original due date, and PostalForm does not enclose a check or other payment.
How it works+
- Confirm that you are a domestic fiscal-year taxpayer using the 2025 form before your original return due date.
- Enter who is filing, the fiscal-year dates, your mailing address, and the state where you live for IRS routing.
- Enter your good-faith estimate of total 2025 tax and payments (lines 4-6).
- Review the completed Form 4868 PDF exactly as it will print.
- We print and mail it to the IRS service center for your state, with proof of mailing available.
- File the return within the six-month extension period measured from the original fiscal-year due date.
Where it gets mailed+
PostalForm mails Form 4868 with no payment enclosed and routes from the state where the taxpayer lives: AL, AR, AZ, FL, GA, LA, MS, NC, NM, OK, SC, TN, and TX file to Austin, TX 73301-0045; CT, DE, DC, IA, IL, IN, KY, MA, MD, ME, MN, MO, NH, NJ, NY, PA, RI, VA, VT, WI, and WV file to Kansas City, MO 64999-0045; AK, CA, CO, HI, ID, KS, MI, MT, ND, NE, NV, OH, OR, SD, UT, WA, and WY file to Ogden, UT 84201-0045. This workflow does not support foreign addresses, territories, APO/FPO addresses, dual-status filers, Form 2555 or 4563 filers, or special Form 1040-NR/1040-SS routing. If you owe tax, pay separately. PostalForm leaves line 7 blank and does not enclose a check or money order. An extension does not extend the time to pay. Address chart source: Where To File a Paper Form 4868, page 4 of the official 2025 Form 4868 — verified July 12, 2026.
Packet order+
- Cover sheet (auto-generated)
- Completed form PDF
Common mistakes+
- Using this fiscal-year workflow for a calendar-year 2025 or 2026 return.
- Assuming the extension gives more time to pay — it only extends the filing deadline. Interest and late-payment penalties run from the original due date.
- Ordering too late for the mailing to be postmarked by the original return due date.
- Entering a careless line 4 estimate — the IRS can void an extension that was based on an unreasonable estimate.
- Mailing the form when you already paid online and marked the payment as an extension — the electronic payment alone already secured your extension.
- Using the with-payment P.O. Box address when no check is enclosed — the address depends on whether a payment is in the envelope.
FAQs+
Where do I mail Form 4868?
For supported domestic fiscal-year filers, PostalForm computes the no-payment destination from the state where the taxpayer lives: Austin, Kansas City, or Ogden under the official 2025 address table. Special foreign, territory, APO/FPO, dual-status, Form 2555/4563, Form 1040-NR, and Form 1040-SS routing is outside this workflow.
Does Form 4868 give me more time to pay my taxes?
No. It extends the time to file your return, not the time to pay. Interest and possible late-payment penalties run from the original due date of your fiscal-year return.
Who can use this workflow now?
A domestic fiscal-year individual whose tax year began in 2025 and whose original return due date has not passed. The IRS says fiscal-year taxpayers must request an extension on paper. Calendar-year 2025 requests are already late, and the 2026 form is not yet available.
Do I need to mail Form 4868 if I paid online?
Fiscal-year taxpayers must file a paper Form 4868. Any tax payment must be handled separately; this PostalForm workflow sends only the no-payment form.
Does Form 4868 need a signature?
No. Form 4868 has no signature line, and the IRS will contact you only if your request is denied.
When is the extended deadline?
A timely Form 4868 generally gives a fiscal-year filer six months from the original return due date. It does not move the payment deadline.
Sources+
Last verified+
Last Internal Revenue Service verification: July 12, 2026