The mailing address depends on your state and whether you owe money

The IRS publishes a specific mailing address for tax returns with payment, and it changes based on where you live. You cannot mail your return to the main IRS office in Washington, D.C. — the agency sorts returns by state and sends them to regional processing centers. Using the wrong address delays your return and can trigger notices about missing documents.

The IRS updates these addresses each year, so even if you mailed a return last year, check the current list before you mail this one. The address you need appears in the instructions that come with your tax form, on the IRS website, or in the tax software you use.

Key Takeaways

  • Every state has its own mailing address for returns with payment; using the wrong one delays processing.
  • The correct address for your state appears in the tax form instructions, on IRS.gov, or in your tax software.
  • Include your payment (check or money order) with your return, and write your Social Security number on the payment itself.
  • Mail your return early enough that it arrives by the important date, since the postmark date is what counts, not the arrival date.
  • Keep a copy of your return and proof of mailing for your records.

How to find the correct mailing address for your state

The IRS website lists mailing addresses organized by state at IRS.gov. Search for "where to file" or "mailing addresses" and you will see a table that shows the address for your state. The address changes slightly from year to year, so do not use an old return as your guide.

If you are using tax software (like TurboTax, H&R Block, or TaxAct), the software will print the correct address on your return or tell you where to mail it. If you are filling out the form by hand, the instruction booklet that comes with the form lists all state addresses. You can also call the IRS at 1-800-829-1040 to confirm the address before you mail.

What to include with your return when you mail a payment

Mail your completed tax form, your payment, and a payment voucher (if required) together in one envelope. The payment voucher is a form that tells the IRS which tax year and which type of return the payment is for. Not all returns require a voucher — check your form instructions to see if you need one.

Write your Social Security number and the tax year on the front of your check or money order. Do not send cash. Make the check or money order payable to "United States Treasury." If you are filing jointly, write both Social Security numbers on the payment.

When to mail so your return arrives on time

The IRS counts the postmark date as your filing date, not the date your return arrives. If your return is postmarked by April 15 (or the next business day if April 15 falls on a weekend), the IRS considers it filed on time, even if it takes two weeks to arrive.

Mail your return at least one week before the important date to give the postal service time to deliver it. If you are mailing close to the important date, use certified mail or a service that provides tracking, so you have proof of the postmark date if questions arise later.

Using registered or certified mail for proof of delivery

Certified mail costs a few dollars more but gives you a receipt showing the postmark date and a tracking number. This protects you if your return goes missing in the mail — you have proof you sent it on time. The IRS will not penalize you for a late return if you can show the postmark date was before the important date.

You can also use private carriers like FedEx or UPS, which provide their own tracking and proof of delivery. These services are faster than regular mail but cost more. Keep your receipt and tracking number with your tax records.

What happens after you mail your return

The IRS processes returns in the order they arrive at the processing center for your state. If you included a payment, the agency deposits it and applies it to your account. You will receive a notice in the mail if there are any problems with your return, such as a missing signature or math error.

If you are due a refund, the IRS will mail you a check or deposit the refund directly to your bank account (if you provided banking information on your return). Refunds by mail typically take four to six weeks from the date the IRS receives your return, though this varies depending on how busy the processing center is.

Keeping records of what you mailed

Make a copy of your entire return before you mail it, including all pages and any forms you attached. Write the date you mailed it and the address you mailed it to on the copy. Keep this copy and your mailing receipt together in a safe place for at least three years.

If you used certified mail, keep the receipt showing the postmark date. If you used tax software, print or save the final version of your return that the software generated. These records protect you if the IRS ever questions whether you filed or when you filed.

Frequently Asked Questions

Can I mail my return to a different address if I live outside the United States?

No. Even if you live abroad, you must use the mailing address for the state where you have a legal residence or where you last lived in the U.S. The IRS publishes separate addresses for returns mailed from outside the country — check IRS.gov for the international mailing address list.

What if I mail my return to the wrong address?

The postal service may forward it to the correct processing center, or it may be returned to you. Either way, processing is delayed. If your return is returned, re-mail it when ready to the correct address. If you are worried about the important date, contact the IRS to confirm they received your return.

Do I have to mail my return, or can I file electronically instead?

You can file electronically through the IRS Free File program (if your income is below a certain level) or through tax software. Electronic filing is faster and more find than mailing. If you owe money, you can pay electronically at the same time you file.

What if my check gets lost in the mail?

The IRS will send you a notice if your return arrived but your payment did not. You can then pay the amount owed by phone, online, or mail. Keep your mailing receipt so you can show when you sent the payment if questions arise.

How long does it take for the IRS to process a mailed return?

Processing typically takes three to six weeks from the date the IRS receives your return, depending on the processing center's workload. If you included a payment, it is deposited within a few days of arrival. You can check the status of your return on IRS.gov after it has been received.