What is the fax number for IRS — Missing Refund (Form 3911)?

The commonly listed fax number for IRS — Missing Refund (Form 3911) is (855) 253-3052. Always confirm on the institution’s latest instructions before you send — numbers can change.

How do I fax to IRS — Missing Refund (Form 3911) online without a fax machine?

Open the send form on this page (number is pre-filled), upload a PDF or image, pay, and RonFax transmits the fax for you. You’ll get a status page and email confirmation when delivery completes.

How much does it cost to send a fax to IRS — Missing Refund (Form 3911)?

RonFax is pay-as-you-go: $1.99 covers up to 3 pages, then $0.50 per extra page. No monthly plan required.

What should I include when faxing IRS — Missing Refund (Form 3911)?

Typical packets include: Completed Form 3911 when directed; Taxpayer name, SSN or ITIN, mailing address; Tax year and refund amount expected; Brief timeline of refund issue. Use a cover page if the institution asks for a subject or routing note.

Is this an official IRS — Missing Refund (Form 3911) page?

No — this is an independent send guide from RonFax. We help you transmit documents to the listed number; we are not affiliated with IRS — Missing Refund (Form 3911). Verify requirements on their official site when unsure.

Fax to Government

How to Fax to IRS — Missing Refund (Form 3911): Step-by-Step Guide

Government

IRS — Missing Refund (Form 3911)

Washington, DC

Verified Mar 2026

Fax number

(855) 253-3052

Pre-filled below — send online in about a minute. No fax machine.

Send this fax online →

What to include

✓Completed Form 3911 when directed
✓Taxpayer name, SSN or ITIN, mailing address
✓Tax year and refund amount expected
✓Brief timeline of refund issue

Send your fax

Prerequisites — what to prepare

Before you fax IRS — Missing Refund (Form 3911), gather these items into one PDF when possible:

✓Completed Form 3911 when directed
✓Taxpayer name, SSN or ITIN, mailing address
✓Tax year and refund amount expected
✓Brief timeline of refund issue

Step-by-step — send via RonFax

No fax machine required. Pay once from $1.99 for up to 3 pages ($0.50 per extra page).

Prepare one PDF with your forms and attachments (cover page first).
Confirm the fax number matches your official letter or agency website.
Upload below — the destination number is pre-filled when available.
Review page-based pricing, pay securely, and save your status link.

Back to send form ↑

Frequently asked questions

What is the fax number for IRS — Missing Refund (Form 3911)?: The commonly listed fax number for IRS — Missing Refund (Form 3911) is (855) 253-3052. Always confirm on the institution’s latest instructions before you send — numbers can change.
How do I fax to IRS — Missing Refund (Form 3911) online without a fax machine?: Open the send form on this page (number is pre-filled), upload a PDF or image, pay, and RonFax transmits the fax for you. You’ll get a status page and email confirmation when delivery completes.
How much does it cost to send a fax to IRS — Missing Refund (Form 3911)?: RonFax is pay-as-you-go: $1.99 covers up to 3 pages, then $0.50 per extra page. No monthly plan required.
What should I include when faxing IRS — Missing Refund (Form 3911)?: Typical packets include: Completed Form 3911 when directed; Taxpayer name, SSN or ITIN, mailing address; Tax year and refund amount expected; Brief timeline of refund issue. Use a cover page if the institution asks for a subject or routing note.
Is this an official IRS — Missing Refund (Form 3911) page?: No — this is an independent send guide from RonFax. We help you transmit documents to the listed number; we are not affiliated with IRS — Missing Refund (Form 3911). Verify requirements on their official site when unsure.

More institutions