How to mail 1040x

To mail a Form 1040X, you'll need to follow these steps:

1. Make sure you have the correct address: The IRS has different addresses for different types of forms and purposes. For a Form 1040X, you'll need to mail it to:
   • Internal Revenue Service
   • Austin, TX 73301-0015
   • (For paper returns)
   • Internal Revenue Service
   • Ogden, UT 84201-0015
   • (For electronic returns)
2. Use the correct envelope: Use a large, flat envelope (at least 9 1/2 x 12 1/2 inches) to ensure your Form 1040X fits comfortably. You can purchase these envelopes at a post office or office supply store.
3. Attach the correct payment: If you're making a payment with your Form 1040X, you'll need to attach a check or money order made payable to the "United States Treasury." Make sure to write your name and address on the check or money order.
4. Sign and date the form: Sign and date the Form 1040X in the space provided.
5. Include all required documentation: Make sure to include all required documentation, such as:
   • A copy of your original Form 1040
   • Any supporting documentation, such as receipts or invoices
   • A completed Form 2210 (Underpayment of Estimated Tax by Individuals, Estates, and Trusts) if you're making a payment
6. Use the correct postage: Use a first-class stamp or a certified mail receipt to ensure your Form 1040X is delivered to the IRS.
7. Keep a copy: Keep a copy of your Form 1040X and supporting documentation for your records.

Tips and Reminders

• Make sure to file your Form 1040X by the deadline to avoid penalties and interest.
• If you're making a payment, make sure to include the payment with your Form 1040X.
• If you're filing electronically, you can use the IRS's Electronic Federal Tax Payment System (EFTPS) to make a payment.
• If you're unsure about any part of the process, consider consulting with a tax professional or contacting the IRS directly.

By following these steps, you'll be able to successfully mail your Form 1040X to the IRS.