If you need to amend a federal tax return, Form 1040-X is used to correct information on a previously filed Form 1040. The mailing address depends on whether you're responding to an IRS notice or filing an amended return on your own.
Federal Amended Tax Return Mailing Address
- If You're Responding to an IRS Notice - Mail your amended return to the address listed on the notice you received from the IRS. You may also be able to respond using the phone number, fax number, or instructions included in the notice.
If You're Filing an Amended Return by Mail: Send Form 1040-X and all supporting documents to the IRS processing center assigned to your state of residence. The correct mailing address can be found on the IRS website.
Be sure to include any forms, schedules, or documentation that support the changes you're making to your return.
Important: If you're filing amended returns for multiple tax years, mail each Form 1040-X in a separate envelope. This helps the IRS process each amended return correctly.
Do You Need a Street Address?
In most cases, no street address is needed when mailing Form 1040-X through the U.S. Postal Service. The IRS mailing addresses use ZIP codes assigned specifically to IRS processing centers. Using the correct ZIP code directs your return to the appropriate location.
If you're using a private delivery service such as FedEx, UPS, or DHL, the IRS provides separate mailing instructions and delivery addresses for approved carriers.
Additional Resources
Where's My Amended Return?
After filing Form 1040-X, you can track its status using the IRS "Where's My Amended Return?" tool. This tool can help you confirm that your amended return was received and show its current processing status.
Private Delivery Services
If you plan to send your amended return through an approved private delivery service, review the IRS guidance for Private Delivery Services (PDS) to find the correct mailing address and eligible carriers.