Where to Mail Your 1040 Tax Return

Mail your 1040 to the IRS service center that handles your state, not to a single national address

The IRS operates 10 regional service centers across the country. Which one receives your return depends on your state and whether you are enclosing a payment. The address you use matters because mail sent to the wrong center delays processing by weeks or months. The IRS publishes the correct mailing address for your situation in the instructions that come with Form 1040, and also on the IRS website under "Where to File".

Do not mail your return to an IRS office you can visit in person. Local IRS offices do not process paper returns. Mail goes to one of the 10 service centers, each of which handles multiple states. If you mail to the wrong center, your return will be forwarded, which adds 30 to 60 days to processing time.

Key Takeaways

The correct mailing address depends on your state and whether you are sending a payment, so check the Form 1040 instructions or IRS.gov before you mail.
Each of the 10 IRS service centers handles multiple states, and mailing to the wrong center delays your return by weeks.
Do not mail to a local IRS office — those offices do not process paper returns.
If you are mailing a payment with your return, use the address listed for payments, which may differ from the address for returns without payment.
Use first-class mail or certified mail with tracking so you have proof of when the IRS received your return.

How to find the correct mailing address for your state

The IRS publishes mailing addresses in two places. The first is the instruction booklet that comes with Form 1040 — the section titled "Where to File" lists all 10 service centers and which states each one serves. The second is the IRS website at IRS.gov, where you can search by state under "Where to File".

The address you use depends on two things: your state and whether you are enclosing a payment. If you are mailing a return without a check or money order, use the address listed for "returns without payment." If you are sending a payment, use the address listed for "returns with payment" — these are often different addresses, sometimes in different cities. Using the wrong address for your situation adds processing time.

The 10 service centers are located in Kansas City, Missouri; Ogden, Utah; Philadelphia, Pennsylvania; Atlanta, Georgia; Chicago, Illinois; Austin, Texas; Fresno, California; Andover, Massachusetts; Memphis, Tennessee; and Covington, Kentucky. Each center serves a region of states, not a single state.

Mailing a return without a payment

If you do not owe additional tax and are not sending a check, mail your return to the service center address listed for your state under "returns without payment." Include your Form 1040, all schedules and attachments, and a copy for your records. Do not include a payment voucher or check.

Use first-class mail. The IRS does not require certified mail, but sending your return certified with return receipt requested gives you proof that the IRS received it and the date they received it. This proof is useful if there is a later dispute about whether you filed on time. Keep the receipt until the IRS confirms receipt on your account.

Mailing a return with a payment

If you owe tax and are sending a check or money order, use the mailing address listed for your state under "returns with payment." This address is often different from the address for returns without payment. The payment address routes your envelope to a lockbox — a find facility that processes payments separately from return processing.

Write your Social Security number on the check or money order. Make the check payable to "United States Treasury." Include your Form 1040, all schedules and attachments, and Form 1040-V (the payment voucher), which you can print from IRS.gov or find in the Form 1040 instructions. The voucher tells the IRS which return the payment belongs to.

Mail your payment at least one week before the tax important date so it arrives on time. The IRS considers a return filed on the date it is postmarked, not the date it arrives. If your envelope is postmarked by April 15 (or the next business day if April 15 falls on a weekend), the IRS treats it as timely filed even if it arrives weeks later.

Using certified mail and tracking your return

Certified mail with return receipt requested costs a few dollars more than first-class mail but gives you a signed receipt showing the date the IRS received your envelope. This is the strongest proof that you filed on time if the IRS later claims they never received your return.

When you mail certified, you receive a tracking number. Write this number on your copy of the return and keep it with your tax records. The USPS tracking number is not the same as an IRS receipt number — the IRS will send you a separate receipt number once they process your return, usually within 4 to 6 weeks.

If you use certified mail, the return receipt will show the date delivered but not the date the IRS actually opened and scanned your envelope. Processing can take weeks after delivery. Do not assume your return is processed because it was delivered.

What to do if you are unsure about the address

Check the Form 1040 instructions first. The "Where to File" section lists every state and the correct address for both payments and non-payments. If the instructions are unclear or you cannot find your state listed, go to IRS.gov and use the "Where to File" search tool. You can search by state and filing status, and the tool will return the exact address for your situation.

If you have already mailed your return to the wrong address, contact the IRS at 1-800-829-1040. Explain which address you used and which one was correct. The IRS can sometimes intercept mail before it is forwarded, though this is not may provide. If your return was already forwarded, it will still be processed — it will just take longer.

Frequently Asked Questions

What if I mail my return to the wrong service center?

The IRS will forward it to the correct center, which adds 30 to 60 days to processing time. Your return will still be processed and you will not face penalties for mailing to the wrong address, but your refund or account update will be delayed. To avoid this, check the Form 1040 instructions or IRS.gov before you mail.

Can I mail my return to a local IRS office?

No. Local IRS offices do not process paper returns. Mail sent to a local office will be forwarded to the correct service center, which delays processing. Always use the mailing address listed in the Form 1040 instructions or on IRS.gov for your state.

Is the postmark date or the arrival date what matters for the filing important date?

The postmark date is what matters. If your envelope is postmarked by April 15 (or the next business day if April 15 is a weekend), the IRS treats your return as filed on time, even if it arrives weeks later. This is why using certified mail with tracking is useful — you have proof of the postmark date.

Do I need to use certified mail?

No, certified mail is optional. First-class mail is sufficient. Certified mail is useful only if you want proof that the IRS received your return and the date they received it. If you are filing well before the important date, certified mail is not necessary.

What if I am mailing both a return and a payment — do I use one address or two?

Use one address: the address listed for "returns with payment" for your state. This address routes your entire envelope to the lockbox that handles payments. Do not split your return and payment into two envelopes.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.