Mail your return to the IRS service center that covers your state

The IRS does not have a single mailing address. Instead, you send your paper return to one of ten regional service centers based on where you live. Using the wrong address delays processing and can trigger notices. The IRS publishes the correct mailing address for your state in the instructions that come with your tax form — usually on the back cover or in a separate sheet labeled "Where to File".

If you cannot find the address in your form instructions, the IRS website lists all ten service centers by state. Search "IRS where to file" and your state name, or call the IRS at 1-800-829-1040 to confirm the address before you mail.

Do not mail to an IRS office in your city or county, even if one exists nearby. The regional service centers are the only addresses that process individual returns. Mailing to a local office adds weeks to processing time.

Key Takeaways

  • The correct mailing address depends on your state, not your city, and is printed in the instructions that come with your tax form.
  • The IRS operates ten regional service centers; mailing to a local IRS office will delay your return.
  • If you cannot locate the address in your form instructions, the IRS website lists all service centers by state.
  • Use certified mail or a tracked service if you want proof the IRS received your return, since standard mail has no tracking.

How to find the correct address for your state

Open the instruction booklet that came with your tax form (Form 1040, 1040-SR, or whichever form you filed). Flip to the back cover or look for a page titled "Where to File — Mail Your Return To". This page lists the mailing address for your state and the service center that handles it.

The address will include a specific street, city, state, and ZIP code. Write it exactly as printed. If the instructions say to use a different address based on whether you are enclosing a check or not, follow that instruction — some service centers have separate addresses for returns with payment.

If you no longer have the instruction booklet, visit IRS.gov and search for "where to file" or "mailing address by state". The IRS also publishes a one-page chart showing all ten service centers and which states each one serves. You can print this chart or call 1-800-829-1040 and ask for the address.

Mailing your return safely

Use an envelope large enough to hold your pages flat without folding. Do not staple or use paper clips — the IRS scanning equipment can jam. Write the service center address on the envelope in black or blue ink, large enough to read clearly.

Include your name and address in the return address area of the envelope. If the IRS cannot read the mailing address and your return bounces back, your return address is how they contact you.

Mail your return at least one week before the deadline if you are using standard first-class mail. The IRS considers a return filed on time if it is postmarked by the deadline, even if it arrives later. If you are mailing close to the deadline, use certified mail or a tracked service like UPS or FedEx — these provide proof of mailing date and can be tracked online.

What happens after you mail your return

The service center scans your return when it arrives and enters your information into the IRS computer system. Processing usually takes 21 days for a paper return, though it can take longer during tax season (January through April). You can check the status of your return by visiting IRS.gov and using the "Where's My Refund?" tool, which updates every 24 hours after the IRS receives your return.

If there is a problem with your return — a missing signature, math error, or missing documents — the IRS will mail you a notice. This notice will include instructions on what to do next. Do not ignore IRS notices; they include a deadline for your response.

When to use a different mailing address

If you are filing an amended return (Form 1040-X), the mailing address is different from the address for a regular return. The Form 1040-X instructions include a separate "Where to File" page with its own service center addresses. Using the regular return address for an amended return causes delays.

If you are mailing a payment with your return, some service centers have a separate address for returns with checks or money orders. The instruction booklet will specify this. If no separate address is listed, use the standard mailing address.

If you are filing a business return (Schedule C, Form 1120, or other business forms), the mailing address may be different from the address for Form 1040. Check the instructions for the specific form you are filing.

Frequently Asked Questions

Can I email my tax return to the IRS instead of mailing it?

No. The IRS does not accept tax returns by email. You must either file electronically using tax software or a tax professional, or mail a paper return to the correct service center address. Electronic filing is faster and more secure than mailing.

What if I mail my return to the wrong address?

The return may be forwarded to the correct service center, which delays processing by several weeks. If it is not forwarded, the IRS will mail you a notice asking you to resubmit. To avoid this, double-check the address against your form instructions or the IRS website before you seal the envelope.

Do I need to use certified mail?

Certified mail is not required, but it is useful if you want proof the IRS received your return. Standard first-class mail is fine if you are mailing at least one week before the deadline. The IRS considers your return filed on time if it is postmarked by the deadline, regardless of when it arrives.

How do I know if the IRS received my paper return?

After the IRS scans your return (usually within 21 days), you can check the status using the "Where's My Refund?" tool on IRS.gov. This tool shows whether your return has been received and processed. If you used certified mail, you will also have a delivery confirmation from the postal service.