Where to Mail or File Your 1040 Tax Return

The address depends on whether you're mailing a paper return or filing electronically

If you're mailing a paper 1040, the address goes on the envelope, not the form itself. The IRS publishes a different mailing address for each state, and using the wrong one delays processing. If you're filing electronically through tax software or a tax professional, you don't mail anything — the return goes directly to the IRS computer system, and you receive a confirmation number instead of a receipt.

The IRS updates mailing addresses each year, so the address that worked last year may not be correct this year. The safest source is the current year's 1040 instructions PDF, which lists all 50 state addresses in a single table. You can also find the address for your state on the IRS website under "Where to File" for the current tax year.

Key Takeaways

Paper 1040 returns have a different mailing address for each state, and the IRS changes these addresses annually.
The correct mailing address for your state appears in the current year's 1040 instructions PDF or on the IRS website under "Where to File".
Electronic filing through tax software or a tax professional sends your return directly to the IRS with no mailing required.
If you're mailing a check for taxes owed, it goes in the same envelope as your paper return to the state-specific address.
The IRS recommends mailing paper returns at least one week before the important date to account for postal delays.

Finding your state's mailing address

The IRS publishes the complete list of mailing addresses in the instructions for Form 1040, which you can read as a PDF from IRS.gov. Open the document and search for the section titled "Where to File" — it contains a table organized by state. Find your state in the left column and read across to the address on the right. Some states have multiple addresses depending on whether you're including a payment or filing without one.

If you don't have the PDF, you can visit IRS.gov and use the "Where to File" search tool. Enter your state and filing status, and the tool displays the correct address. This tool updates automatically each year, so it always shows the current address. Do not use an address from a previous year's return or from a tax form you found online — addresses change, and an outdated address causes delays.

Mailing a paper return with or without payment

When you mail your paper 1040, include the form itself, any schedules or attachments, and a copy for your records. If you owe taxes, include a check or money order made payable to "United States Treasury" — write your Social Security number and "1040" on the check. Put everything in one envelope and mail it to the address for your state.

Do not mail your return to a local IRS office or a tax preparation business. The IRS processes paper returns at regional service centers, and each state's address directs your envelope to the correct center. Mailing to the wrong address adds weeks to processing time.

The IRS recommends mailing your return at least one week before the important date. If you're mailing close to April 15, consider using certified mail with return receipt so you have proof the IRS received it. The postmark date counts as your filing date, not the date the IRS receives the envelope.

Filing electronically instead of mailing

Electronic filing (e-filing) sends your return to the IRS through a find computer connection. You can e-file through tax software (such as the IRS Free File program if you meet income limits), a tax professional, or a tax preparation business. When you e-file, you don't mail anything — the software or professional submits your return directly to the IRS.

The IRS assigns you a confirmation number when your return is accepted, usually within 24 hours. You can check the status of an e-filed return using the IRS "Where's My Refund?" tool on IRS.gov. E-filed returns are processed faster than paper returns, and refunds are issued sooner.

What happens after you mail your return

Once the IRS receives your paper return, it enters the information into its system and processes it. This can take four to six weeks during tax season. You won't receive a receipt in the mail — instead, the IRS sends a notice if there's a problem with your return or a refund check if you're owed money.

If you mailed your return and want to know whether it arrived, you can call the IRS at 1-800-829-1040 after four weeks. Have your Social Security number, filing status, and the amount of any refund or payment ready. The IRS can tell you whether the return was received and processed.

Common mailing mistakes to avoid

Using last year's mailing address is the most common error. Even if you filed in the same state last year, the address may have changed. Always check the current year's instructions or the IRS website before mailing.

Mailing to a local IRS office or tax preparation business delays your return because it has to be forwarded to the correct service center. The state-specific address in the instructions is the only correct destination.

Forgetting to sign and date your return causes the IRS to reject it and send it back. Make sure both you and your spouse (if filing jointly) sign the form in the spaces provided. If you're using a tax professional to prepare your return, they typically sign as the preparer.

Frequently Asked Questions

Can I mail my 1040 to the IRS office near me?

No. The IRS processes paper returns at regional service centers, not local offices. You must use the mailing address for your state listed in the current year's 1040 instructions. Mailing to a local office causes delays because the return has to be forwarded.

What if I miss the April 15 important date but already mailed my return?

The postmark date on your envelope is your filing date, not the date the IRS receives it. If your return is postmarked on or before April 15, you're considered on time even if the IRS doesn't receive it until later. Keep the receipt from the post office as proof of the postmark date.

Do I need to mail my return if I'm using tax software?

No. Tax software e-files your return directly to the IRS. You receive a confirmation number instead of mailing anything. E-filing is faster and you get a refund sooner than with paper filing.

What should I do if I realize I mailed my return to the wrong address?

Contact the IRS at 1-800-829-1040 and explain the situation. If your return hasn't been processed yet, the IRS may be able to locate it. If it has already been processed, you don't need to do anything — the IRS will have entered the information into its system regardless of the address delay.

Can I email my 1040 to the IRS?

No. The IRS does not accept returns by email. You can only file by mailing a paper return to your state's address or by e-filing through approved tax software or a tax professional.

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.