IRS Form 3911 fax numbers by state
Form 3911 goes to the IRS Refund Inquiry Unit for the state you live in. There are eight units for individual returns, each with its own fax number, and two more for business entities. Each is below with its mailing address, the official IRS page and the date we last checked it.
Andover Refund Inquiry Unit
855-253-3175
this week · 11-13-2026 Official website Fax this number
Use this number if you live in Maine, Maryland, Massachusetts, New Hampshire or Vermont.
Atlanta Refund Inquiry Unit
855-275-8620
this week · 11-13-2026 Official website Fax this number
Use this number if you live in Georgia, Iowa, Kansas, Kentucky or Virginia.
Austin Refund Inquiry Unit
855-203-7538
this week · 11-13-2026 Official website Fax this number
Use this number if you live in Florida, Louisiana, Mississippi, Oklahoma or Texas. It is also the number for a foreign country, a U.S. possession or territory, an APO or FPO address, a Form 2555 or 4563 filer, or a dual-status alien.
Brookhaven Refund Inquiry Unit
855-297-7736
this week · 11-13-2026 Official website Fax this number
Use this number if you live in New York.
Fresno Refund Inquiry Unit
855-332-3068
this week · 11-13-2026 ProntoFax user, 1 send in 90 days Fax this number
Use this number if you live in Alaska, Arizona, California, Colorado, Hawaii, Nevada, New Mexico, Oregon, Utah, Washington, Wisconsin or Wyoming.
Kansas City Refund Inquiry Unit
855-344-9993
this week · 11-13-2026 Official website Fax this number
Use this number if you live in Arkansas, Connecticut, Delaware, Indiana, Michigan, Minnesota, Missouri, Montana, Nebraska, New Jersey, Ohio or West Virginia.
Memphis Refund Inquiry Unit
855-580-4749
this week · 11-13-2026 Official website Fax this number
Use this number if you live in Alabama, North Carolina, North Dakota, South Carolina, South Dakota or Tennessee.
Philadelphia Refund Inquiry Unit
855-404-9091
this week · 11-13-2026 Official website Fax this number
Use this number if you live in the District of Columbia, Idaho, Illinois, Pennsylvania or Rhode Island.
For business entities only. A refund on an individual return goes to the unit for your state above, never to these two numbers.
| Unit | Fax number | Who uses it | Last verified | Verified by |
|---|---|---|---|---|
| Cincinnati Refund Inquiry Unit (business entities) | 855-307-3124 Fax this number | Business entities only, in a state east of the Mississippi, and in Arkansas and Louisiana. Not Wisconsin, which goes to Ogden. | this week · 11-13-2026 | Official website |
| Ogden Refund Inquiry Unit (business entities) | 855-578-2550 Fax this number | Business entities only, in a state west of the Mississippi, and in Wisconsin. Not Arkansas or Louisiana, which go to Cincinnati. | this week · 11-13-2026 | Official website |
ProntoFax is an independent fax service. We are not affiliated with, endorsed by, or connected to the Internal Revenue Service.
Where to mail Form 3911
If you mail the form instead, each unit’s address is below, from the same IRS page and in the same split as the fax numbers.
Andover Refund Inquiry Unit
Andover Refund Inquiry Unit
310 Lowell St, Mail Stop 666
Andover, MA 01810
Mail Form 3911 here if you live in Maine, Maryland, Massachusetts, New Hampshire or Vermont.
Fax: 855-253-3175
this week · 11-13-2026
Atlanta Refund Inquiry Unit
Atlanta Refund Inquiry Unit
4800 Buford Hwy, Mail Stop 112
Chamblee, GA 30341
Mail Form 3911 here if you live in Georgia, Iowa, Kansas, Kentucky or Virginia.
Fax: 855-275-8620
this week · 11-13-2026
Austin Refund Inquiry Unit
Austin Refund Inquiry Unit
3651 S IH 35, Stop 6542
Austin, TX 78741-7855
Mail Form 3911 here if you live in Florida, Louisiana, Mississippi, Oklahoma or Texas. From a foreign country, a U.S. possession or territory or an APO or FPO address, or if you file Form 2555 or 4563 or are a dual-status alien, the IRS gives the address as 3651 S Interregional Hwy 35, Mail Stop 6542 AUSC, Austin, TX 78741.
Fax: 855-203-7538
this week · 11-13-2026
Brookhaven Refund Inquiry Unit
Brookhaven Refund Inquiry Unit
1040 Waverly Ave, Mail Stop 547
Holtsville, NY 11742
Mail Form 3911 here if you live in New York.
Fax: 855-297-7736
this week · 11-13-2026
Fresno Refund Inquiry Unit
Fresno Refund Inquiry Unit
3211 S Northpointe Dr., Mail Stop B2007
Fresno, CA 93725
Mail Form 3911 here if you live in Alaska, Arizona, California, Colorado, Hawaii, Nevada, New Mexico, Oregon, Utah, Washington, Wisconsin or Wyoming.
Fax: 855-332-3068
this week · 11-13-2026
Kansas City Refund Inquiry Unit
Kansas City Refund Inquiry Unit
333 W Pershing Rd, Mail Stop 6800, N-2
Kansas City, MO 64108
Mail Form 3911 here if you live in Arkansas, Connecticut, Delaware, Indiana, Michigan, Minnesota, Missouri, Montana, Nebraska, New Jersey, Ohio or West Virginia.
Fax: 855-344-9993
this week · 11-13-2026
Memphis Refund Inquiry Unit
Memphis Refund Inquiry Unit
5333 Getwell Rd, Mail Stop 8422
Memphis, TN 38118
Mail Form 3911 here if you live in Alabama, North Carolina, North Dakota, South Carolina, South Dakota or Tennessee.
Fax: 855-580-4749
this week · 11-13-2026
Philadelphia Refund Inquiry Unit
Philadelphia Refund Inquiry Unit
2970 Market St, DP 3-L08-151
Philadelphia, PA 19104
Mail Form 3911 here if you live in the District of Columbia, Idaho, Illinois, Pennsylvania or Rhode Island.
Fax: 855-404-9091
this week · 11-13-2026
Cincinnati Refund Inquiry Unit (business entities)
Cincinnati Refund Inquiry Unit
7940 Kentucky Dr, Mail Stop 536G
Florence, KY 41042-2915
Business entities only. Mail Form 3911 here for a business in a state east of the Mississippi, or in Arkansas or Louisiana.
Fax: 855-307-3124
this week · 11-13-2026
Ogden Refund Inquiry Unit (business entities)
Ogden Refund Inquiry Unit
1973 N Rulon White Blvd, Mail Stop 6733
Ogden, UT 84404
Business entities only. Mail Form 3911 here for a business in a state west of the Mississippi, or in Wisconsin.
Fax: 855-578-2550
this week · 11-13-2026
What Form 3911 is for
Form 3911, Taxpayer Statement Regarding Refund, asks the IRS to trace a refund. You use it when a refund never arrived, or when a refund check was lost, stolen or destroyed. The IRS uses it to find out what happened to a refund it already issued.
Sending the IRS something else? Our note on what you can fax to the IRS covers the other forms and where they go.
Official source: About Form 3911, with the table of units these numbers come from
Only Form 3911 goes to these numbers
The IRS page that lists these numbers says: "Do not send anything other than a Form 3911 to the fax numbers below." A letter, a return or another form sent to them is not where the IRS wants it.
If the refund was from a joint return, both spouses must sign the form before the IRS can begin a trace. The form says so in its signature section.
For anything else, our page on faxing the IRS explains where the number comes from.
Official source: About Form 3911, with the table of units these numbers come from
Official source: Form 3911, the current form
How long to wait, and what happens next
The IRS says a refund check should arrive within 4 weeks from the date it issues it. Confirm that date in its refund tracker or your online account before you start a trace.
If you filed single, married filing separately or head of household, the IRS says you can start a trace for a current year refund with its refund tracker, the IRS app or its automated phone line. If you filed jointly, it asks you to call or to send Form 3911.
After a trace, an uncashed check is canceled and a new one mailed, and the IRS says to expect it within 4 weeks of the date it is issued. If the check was cashed, the Bureau of the Fiscal Service mails you a claim package and a copy of the check, and its review can take up to 6 weeks.
Official source: IRS refund questions, with the refund trace section
How we verify fax numbers
Every number on this page was published by the agency itself. The two columns beside it say when that number was last confirmed, and what confirmed it.
The Verified by column says which of these it was:
Official website the agency publishes this number. The date is the day we read it from their page or their published file.
ProntoFax user a fax sent through ProntoFax reached this number and the receiving machine confirmed it. The date is the most recent delivery.
ProntoFax automation we called the number and heard a fax tone answer. Nothing is sent and the call ends as soon as the line answers.
Needs verification recent attempts to this number did not go through. It stays listed because the agency still publishes it, but check it against your own letter before you send.
The date is colored by how long ago it was:
Within 90 days 91 to 270 days Over 270 days
We never add a number because someone faxed it. A number appears here only if the agency published it. A delivered fax can confirm a number, but it can never create one.
What goes to these numbers
Form 3911 and nothing else. You check the box that matches what happened:
- You did not receive a refund
- You received a refund check, but it was lost, stolen or destroyed
- You received the refund check and signed it
Before you send
The IRS asks for no cover sheet and says to send nothing but Form 3911 to these numbers, so the simplest fax is the signed form alone. If you add a cover sheet anyway, keep it to:
- Your name as it appears on the form
- "Form 3911, refund trace"
- The number of pages, including the cover sheet
Sign it. On a joint return, both spouses sign before the IRS can begin a trace.
Check the wait first. The IRS says a refund check should arrive within 4 weeks from the date it was issued.
Keep your delivery confirmation and a copy of the signed form. The confirmation shows the date it reached the unit.
The IRS updated these addresses and fax numbers on its About Form 3911 page. We check them there, and the date we last did is shown beside each one.
Send it from your phone
Photograph each page of the signed form with your phone camera, or upload a PDF.
Check every page in the preview before anything goes out.
Enter the number for your state from above. We check that the line can receive.
Pay $2.99 and watch it send. If it is not delivered, you are not charged.
Pay only when delivery is confirmed
Why ProntoFax
- Flat $2.99 per delivered fax, no subscription
- No account or sign-up required
- We validate the fax line before you pay
- No charge if your fax does not go through
- Email receipt with delivery time, page count, and a link to view the document you sent
Questions about faxing Form 3911
Can Form 3911 be faxed?
Yes. The IRS About Form 3911 page lists a fax number for each Refund Inquiry Unit, by the state you live in, and says to send nothing but Form 3911 to them.
Which number do I use?
The unit for the state you live in, listed under each number above. Austin also takes Form 3911 from a foreign country, a U.S. territory or an APO or FPO address. Cincinnati and Ogden are for business entities only.
Do both spouses have to sign?
Yes, if the refund was from a joint return. The form says both spouses must sign before the IRS can begin a trace.
How long should I wait before sending Form 3911?
The IRS says a refund check should arrive within 4 weeks from the date it issues it. Check that date in the refund tracker or your online account first.
How much does it cost?
$2.99 for one fax of up to 25 pages. No subscription and no account. Your card is held and only charged once delivery is confirmed.