Government
IRS — Missing Refund (Form 3911)
Washington, DC
Verified Mar 2026
Fax number
(855) 253-3052
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
Fax missing or delayed federal refund inquiries (often with Form 3911).
Send your fax
1
Recipient fax number
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2
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