Where do i mail a 1040x form

You can mail your amended tax return (Form 1040-X) to the following address:

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

Make sure to:

  1. Sign and date the form: Sign and date the Form 1040-X in the space provided.
  2. Attach supporting documents: Attach any supporting documents, such as W-2s, 1099s, and receipts, to the Form 1040-X.
  3. Use the correct envelope: Use a large, flat envelope (at least 9 1/2 x 12 1/2 inches) to mail the Form 1040-X. You can purchase these envelopes at a post office or office supply store.
  4. Use the correct postage: Make sure to affix the correct postage to the envelope. The current postage rate for a large envelope is $3.50.
  5. Keep a copy: Keep a copy of the Form 1040-X and supporting documents for your records.

Note: You can also e-file your amended tax return using tax preparation software or through the IRS website. If you choose to e-file, you will not need to mail a paper copy.

Additionally, you can check the IRS website for any specific instructions or requirements for mailing your amended tax return.