How to Know the IRS Got Your Form 4868

Paper Form 4868

There's no approval letter. The form says the IRS contacts you only if your request is denied, and the Internal Revenue Manual tells IRS staff that a Form 4868 submitted on time is approved. What you keep:

• Proof of mailing. USPS Certified Mail gives a dated receipt; Certified Mail with a return receipt shows delivery too.
• A copy of the form you mailed.

If you enclosed a check, it clearing your bank is a sign the IRS processed the payment.

E-filed Form 4868

You receive an electronic acknowledgment once the transaction is complete. Keep it with your records. If you got a rejection instead, see Form 4868 rejected.

Extension by payment

Paying online and marking it as an extension gives you a confirmation number for each payment. That number is your record. IRS Direct Pay help says to keep it in case you need to change or cancel the payment.

If the IRS denies it

The IRS writes to tell you, usually with Letter 0297C or Form 6513. The main reason is filing late: after the original due date, allowing for the June date for people abroad and 1040-NR filers without U.S. wages, disaster postponements, and a rejected e-file followed by a quick paper filing. A Form 4868 without a Social Security number is sent back with a request for one, unless it says an ITIN is being requested.

If you get a denial and think it's wrong, reply with your proof of timely mailing or your e-file acknowledgment.

Questions people ask

Can I check my extension status online?

There's no status tool for Form 4868. Your proof is your receipt, acknowledgment or confirmation number. Payments show in your IRS online account.

How long does the IRS take to process it?

There's no published processing time for a paper Form 4868. Since the IRS writes only to deny one, silence is normal.

I lost my proof. Am I still extended?

Yes, if you filed on time. Proof only matters if the IRS questions it, so keep whatever you have.