Address to mail amended federal tax return

To mail an amended federal tax return (Form 1040-X), follow these steps:

1. Make sure you have the correct form: You'll need to file Form 1040-X, Amended U.S. Individual Income Tax Return, to correct errors or make changes to your original tax return.
2. Gather required documents: You'll need to attach supporting documentation to your amended return, such as:
   • A copy of your original tax return (Form 1040)
   • Any relevant schedules, forms, or attachments (e.g., W-2s, 1099s, receipts for deductions)
   • A detailed explanation of the changes you're making
3. Complete Form 1040-X:
   • Fill out the top section of Form 1040-X, including your name, address, and Social Security number or Individual Taxpayer Identification Number (ITIN).
   • In the "Amended Items" section, list the specific changes you're making to your original return.
   • Calculate the new tax due or refund due, and enter the amount in the "Amount of Overpayment" or "Amount of Underpayment" box.
4. Attach supporting documentation: Include all supporting documents, such as receipts, invoices, and cancelled checks, to support your amended return.
5. Sign and date the form: Sign and date Form 1040-X in the space provided.
6. Mail the amended return: Send the completed Form 1040-X and supporting documents to:

Internal Revenue Service Amended Return Processing 1111 Constitution Ave NW Washington, DC 20224-0002

Important mailing instructions:

• Use a certified mail service, such as USPS Certified Mail, to track your return and ensure it's received by the IRS.
• Keep a copy of your amended return and supporting documents for your records.
• If you're filing electronically, you can use the IRS's online system, the Electronic Federal Tax Payment System (EFTPS), to make a payment or request a refund.

Timing and deadlines:

• You can file an amended return at any time, but it's recommended to file it within 3 years from the original due date of your return or within 2 years from the date you paid the tax, whichever is later.
• If you're claiming a refund, you must file your amended return within 3 years from the original due date of your return.

Remember to keep accurate records and follow the IRS's guidelines to ensure a smooth and successful amended return process.