Where to mail Form 1040-X (amended return)
To mail a paper Form 1040-X amended return, address it to the Department of the Treasury, Internal Revenue Service, in Austin TX 73301-0052, Ogden UT 84201-0052, or Kansas City MO 64999-0052, depending on your state. Note the ZIP suffix is -0052 (different from an original return), and the state groupings differ slightly from Form 1040 — check the cards below. If you are responding to an IRS notice, use the address on the notice instead.
Mailing addresses
Verified July 2026Amended return — Austin
Department of the Treasury Internal Revenue Service Austin, TX 73301-0052
Residents of AL, AR, FL, GA, LA, MS, OK, TX filing Form 1040-X.
Amended return — Ogden
Department of the Treasury Internal Revenue Service Ogden, UT 84201-0052
Residents of AK, AZ, CA, CO, HI, ID, IA, KS, MI, MT, NE, NV, NM, ND, OH, OR, SD, UT, WA, WY filing Form 1040-X.
Amended return — Kansas City
Department of the Treasury Internal Revenue Service Kansas City, MO 64999-0052
Residents of CT, DE, DC, IL, IN, KY, ME, MD, MA, MN, MO, NH, NJ, NY, NC, PA, RI, SC, TN, VT, VA, WV, WI filing Form 1040-X.
Foreign address, US territory, or APO/FPO
Department of the Treasury Internal Revenue Service Austin, TX 73301-0215
Filers with a foreign address, a US territory, an APO/FPO address, or filing Form 2555 or 4563, or dual-status aliens.
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Key facts
- Form 1040-X uses the ZIP suffix -0052, not the -0002 of an original return. Using the original-return ZIP can misroute your amendment.
- The state groupings for 1040-X are not identical to Form 1040 — e.g. the Carolinas and Tennessee file amendments in Kansas City, and New Mexico and Iowa file in Ogden.
- If your 1040-X is responding to a specific IRS notice, send it to the address printed on that notice instead of the general address.
- You can now e-file many 1040-X amendments; paper is still accepted, and mailed amendments take the IRS several months to process.
- PostPal prints and mails your 1040-X via USPS the next business day for $5, with a dated confirmation email.
How to send your letter
- 1
Check whether a notice applies
If you are amending in response to an IRS letter or notice, use the return address on that notice. Otherwise use the general 1040-X address for your state below.
- 2
Match your state to the right city
Amended returns route to Austin, Ogden, or Kansas City — but the state lists differ from an original return, so use the cards above, not the 1040 mapping.
- 3
Attach supporting forms
Include any schedules or forms that changed, and explain the reason for each change in Part III of the 1040-X. Sign and date it.
- 4
Mail it
Address the envelope exactly (note the -0052 ZIP). PostPal prints and mails your amendment for $5 and emails you dated proof of mailing.
Common questions
Where do I mail my amended tax return (1040-X)?
To the Department of the Treasury, Internal Revenue Service in Austin TX 73301-0052, Ogden UT 84201-0052, or Kansas City MO 64999-0052 by state. If you are answering an IRS notice, use the address on the notice.
Why is the ZIP different from my original return?
The IRS uses a distinct ZIP suffix (-0052) to route amended returns to the right unit. Sending a 1040-X to the -0002 original-return ZIP can slow it down.
Do the states map the same way as Form 1040?
Not exactly. Several states are grouped differently for 1040-X than for an original 1040, so use the amended-return cards on this page rather than the original-return mapping.
How long does a mailed 1040-X take?
The IRS typically takes several months to process a paper amended return. Mailing early and keeping dated proof of mailing helps — PostPal emails you a confirmation when it is handed to USPS.