Where to Mail Your Federal Income Tax Return

Mail your return to the IRS address that matches your state and filing method

The mailing address for your federal tax return depends on which state you live in and whether you are filing a paper return or an amended return. The IRS publishes a specific list of addresses for each state, and using the wrong address delays processing. If you file electronically through tax software or a tax professional, you do not mail anything — the return goes directly to the IRS computer system.

Paper returns must go to a regional IRS processing center. The IRS sorts by state because each state has its own center. Amended returns (Form 1040-X) go to a different address than original returns, even within the same state. The IRS website and your tax form instructions both list the correct address for your situation.

Key Takeaways

The mailing address for your tax return is determined by your state of residence and whether you are filing an original return or an amended return.
The IRS publishes the correct mailing addresses in the instructions that come with Form 1040 and on IRS.gov under "Where to File."
If you file electronically, you do not mail a paper return at all — the software or tax professional sends it directly to the IRS.
Mailing to the wrong address adds weeks to processing time and may trigger a notice asking you to resubmit.

How to find the correct mailing address for your state

The IRS maintains a table called "Where to File" on its website at IRS.gov. This table lists every state and the corresponding mailing address for that state's processing center. You find your state in the left column, then read across to the address on the right. The table separates original returns from amended returns, so make sure you are looking at the row that matches what you are filing.

The instructions that come with Form 1040 also include this table. If you printed the form or received a paper copy, the address list is in the back. Tax software programs usually print the correct address on the cover page of your return before you mail it, so you can verify it matches the IRS table.

Do not guess or use an address from a previous year. The IRS changes processing center addresses occasionally, and using an outdated address means your return arrives at a facility that no longer handles that state's returns. The current address is always on IRS.gov or in the current year's Form 1040 instructions.

Mailing an original return versus an amended return

An original return is your first filing for a tax year. An amended return (Form 1040-X) is filed after you have already submitted an original return and discovered an error or missed income. These two types go to different addresses, even in the same state.

Original returns go to the address listed under the "Original Returns" section of the IRS "Where to File" table. Amended returns go to the address listed under "Amended Returns." If you mail an amended return to the original return address, the processing center will forward it, which adds time. Using the correct address from the start keeps your return on schedule.

The Form 1040-X instructions also list the amended return addresses. Before you mail Form 1040-X, double-check that you are using the amended return address for your state, not the original return address.

What to include with your mailed return

When you mail a paper return, include only the pages the IRS requires. For most filers, this means Form 1040 (the main form), any schedules you completed (such as Schedule C if you are self-employed, or Schedule A if you itemize deductions), and any forms the IRS requires for your situation (such as Form 8949 if you sold investments).

Do not mail documents like receipts, invoices, or bank statements unless the IRS specifically requests them. The IRS keeps these documents on file if you are audited, but sending them with your return slows processing. Write your Social Security number on every page you mail, in case pages get separated.

If you are mailing a check for taxes owed, make it payable to "United States Treasury" and write your Social Security number and the tax year on the memo line. Attach the check to the front of your return with a paper clip, not a staple.

Tracking your mailed return

The IRS does not provide tracking numbers for mailed returns the way the postal service does. However, you can send your return by Certified Mail with Return Receipt, which gives you proof that the IRS received it and a date stamp. This costs a few dollars but protects you if the return is lost in the mail.

After you mail your return, the IRS typically processes paper returns within 21 days. You can check the status of your return using the IRS "Where's My Refund?" tool on IRS.gov, which updates every 24 hours. This tool shows whether the IRS has received your return, whether it is being processed, and whether a refund has been issued.

If you do not see your return in the system after 21 days, contact the IRS at 1-800-829-1040. Have your Certified Mail receipt ready if you sent one. The IRS can search for your return and tell you whether it arrived.

Why electronic filing is faster than mailing

If you file electronically through tax software (such as IRS Free File, TurboTax, or H&R Block) or through a tax professional, your return goes directly to the IRS computer system the moment you submit it. There is no mailing address involved. Electronic returns are processed within 24 hours in most cases, compared to 21 days for paper returns.

Electronic filing also reduces errors because the software checks your math and flags missing information before you submit. If you owe taxes, you can set up an electronic payment plan through the IRS website on the same day you file. If you are due a refund, electronic filing gets the money to your bank account faster — usually within 21 days instead of the 6 to 8 weeks a mailed check takes.

The IRS Free File program offers free electronic filing to households earning below a certain income threshold (the threshold changes each year). If you do not may have access to for Free File, tax software costs between $0 and $200 depending on the complexity of your return and which company you use.

Common mistakes when mailing a return

The most common mistake is mailing to the wrong state address. This happens when someone moves during the tax year or uses an address from a previous year's return. Always check the current year's "Where to File" table, even if you filed last year.

Another mistake is mailing an amended return to the original return address. Amended returns have their own separate addresses. If you are filing Form 1040-X, verify you are using the amended return address before you mail.

A third mistake is mailing your return too late. The tax filing important date is usually April 15, but the IRS counts the postmark date, not the arrival date. Mail your return at least one week before the important date to be safe. If you cannot meet the important date, file Form 4868 to request an automatic extension, which gives you until October 15.

Frequently Asked Questions

What if I mail my return to the wrong address?

The processing center that receives it will forward it to the correct center, but this adds 2 to 4 weeks to processing time. Your return will eventually reach the right place, but you may receive a notice asking you to resubmit or verify information. To avoid this, always check the current "Where to File" table before mailing.

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

No. Local IRS offices do not accept mailed returns. You must mail to the processing center address listed for your state. Local offices handle in-person appointments and phone calls, but not mail.

Do I need to mail my return if I file electronically?

No. Electronic filing sends your return directly to the IRS computer system. You do not print or mail anything. The only time you mail is if you choose to file a paper return instead.

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

You can check using the IRS "Where's My Refund?" tool on IRS.gov after 21 days. If you sent your return by Certified Mail with Return Receipt, you will have a postal receipt showing the delivery date. If your return does not appear in the system after 21 days, call the IRS at 1-800-829-1040.

What if the tax important date falls on a weekend or holiday?

The important date moves to the next business day. For example, if April 15 falls on a Saturday, the important date becomes Monday, April 17. The IRS website announces the actual important date each year. The postmark date is what matters — if you mail before midnight on the important date date, your return is considered on time.

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.