Mail your return to the IRS service center for your state

The IRS has 10 regional service centers across the country. Which one you use depends on your state and whether you are filing on paper. The IRS publishes a mailing address list each year, and the correct address changes based on whether you are sending a return, a payment, or an amended return.

Do not mail your return to the main IRS office in Washington, D.C. or to your local IRS field office. Those addresses will delay processing. The regional service centers are where individual tax returns are processed, and using the correct address speeds up your refund or reduces the time before the IRS contacts you about your return.

The fastest way to find your state's mailing address is to visit IRS.gov and search "where to file paper return" or "mailing address for your state." The IRS updates these addresses annually, usually in December for the upcoming tax year.

Key Takeaways

  • Each state has one designated IRS service center address for paper returns, and using the wrong address delays processing.
  • The mailing address differs depending on whether you are sending a regular return, a payment only, or an amended return.
  • IRS.gov publishes the complete mailing address list each year, and you should check the current year's list before mailing.
  • If you include a payment with your return, use the payment address for your state, not the regular return address.
  • E-filing avoids mailing altogether and typically results in faster processing and refunds.

How to find your state's specific mailing address

Go to IRS.gov and use the search bar to look for "where to file." The IRS maintains a table that lists every state, the service center that processes returns from that state, and the exact mailing address for that center. The table also shows different addresses for different situations — for example, if you are mailing a return with a payment versus mailing a return without a payment.

Print or write down the address before you mail your return. Do not rely on memory or an old return from a previous year, because the IRS occasionally changes addresses. The address you used last year may not be correct this year.

If you cannot access IRS.gov, you can call the IRS at 1-800-829-1040 and ask for the mailing address for your state. Have your state name ready when you call.

Different addresses for returns with and without payments

If you are mailing only your tax return and no payment, use the standard return mailing address for your state. If you are mailing a payment along with your return, the IRS often directs you to a different address — usually a lockbox operated by a bank on behalf of the IRS.

The reason for two addresses is processing speed. Payments go to a lockbox first, where they are recorded and deposited. Returns go to the service center, where they are scanned and reviewed. Sending the payment to the lockbox address ensures it is recorded in the IRS system quickly and reduces the chance of a mismatch between your return and your payment record.

The IRS.gov table clearly labels which address to use in each situation. Read the table carefully before you seal your envelope.

What to include with your mailed return

Include your completed tax form (1040, 1040-SR, or 1040-NR depending on your situation), all required schedules, and any supporting documents the IRS asks for. Do not staple documents together; use a paper clip or rubber band instead. Write your Social Security number on every page.

If you are mailing a payment, write a check or money order payable to "United States Treasury." Do not send cash. Write your Social Security number, tax year, and form number on the front of the check. Include the check in the envelope with your return.

Use a large envelope (9 by 12 inches or larger) so documents do not fold. Use first-class mail or certified mail with return receipt if you want proof the IRS received your return. The IRS does not require certified mail, but it gives you a record.

Processing time for mailed returns

The IRS typically takes 21 days to process a mailed paper return after it arrives at the service center. If you are owed a refund, the IRS will mail it to you or deposit it into your bank account (if you provided direct deposit information on your return). Refunds by mail usually arrive within two to three weeks after processing begins.

If the IRS needs more information from you, they will mail you a letter. This process can take several weeks or longer, depending on what they are asking for and how quickly you respond.

If you need your refund faster, consider e-filing instead. E-filed returns are processed within 21 days, and refunds by direct deposit often arrive within 8 to 15 days.

When to mail your return

The IRS accepts returns year-round, but the tax filing deadline is usually April 15. If you mail your return close to the deadline, it must be postmarked by April 15 to be considered on time. The postmark date, not the date the IRS receives it, determines whether you filed on time.

If April 15 falls on a weekend or holiday, the deadline moves to the next business day. The IRS announces the exact deadline each year on IRS.gov.

Mailing your return early — in January or February — gives the IRS time to process it without rush and gives you time to respond if they have questions. Mailing in early April means your return arrives during the busiest processing period, which can add days to processing time.

Tracking your mailed return

If you mailed your return using certified mail with return receipt, you will receive a receipt showing the IRS service center received your envelope. This receipt is proof of mailing but does not mean the IRS has processed your return.

To check the status of your return after mailing, use the IRS "Where's My Refund?" tool on IRS.gov. This tool updates every 24 hours and shows whether the IRS has received and processed your return. You will need your Social Security number, filing status, and the exact refund amount from your return.

If your return does not appear in "Where's My Refund?" within 21 days of mailing, call the IRS at 1-800-829-1040 and provide your mailing date and the service center address you used.

Frequently Asked Questions

Can I mail my return to my local IRS office instead of the service center?

No. Local IRS offices do not process individual tax returns. Mailing to a local office will delay your return and may result in it being forwarded to the correct service center, adding weeks to processing time. Always use the service center address for your state.

What if I mail my return to the wrong address?

The IRS may forward it to the correct service center, but this adds processing time. If you realize you used the wrong address before mailing, do not send the envelope. Look up the correct address and mail again. If you already mailed it, wait 30 days and then check "Where's My Refund?" on IRS.gov to see if it has been received.

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

You can file electronically through IRS.gov Free File (if your income is below a certain threshold), through tax software, or through a tax professional. E-filing is faster, more secure, and results in quicker refunds. Mailing is an option if you prefer paper, but it takes longer.

Should I use certified mail when mailing my tax return?

Certified mail is optional. It gives you proof the IRS received your envelope, but it does not speed up processing. If you want a record for your files, certified mail is worth the extra cost. Otherwise, regular first-class mail is sufficient.

What if I need to mail an amended return?

Amended returns (Form 1040-X) go to a different address than original returns. Check IRS.gov for the amended return mailing address for your state. Do not mail an amended return to the address you used for your original return.