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

The IRS publishes a different mailing address for each state. Which address you use depends on where you live, not where you work or where your income came from. If you file by mail, you'll find the correct address in the instructions that come with your tax form, on the IRS website, or by calling the IRS at 1-800-829-1040.

Most people now file electronically instead of mailing a paper return. Electronic filing is faster, produces fewer errors, and you get a confirmation that the IRS received your return. If you file electronically through tax software or a tax preparer, you don't mail anything — the software sends it directly to the IRS.

The IRS does not accept returns by email, fax, or through social media. Paper returns must go through the mail to the correct state address, and electronic returns must go through approved software or a tax professional's system.

Key Takeaways

  • Each state has its own IRS mailing address; use the one for your state of residence, found in your tax form instructions or on IRS.gov.
  • Electronic filing through tax software or a tax preparer is faster and more reliable than mailing a paper return.
  • The IRS does not accept returns by email, fax, or any method other than approved mail addresses or electronic filing systems.
  • If you file by mail, send your return early enough to arrive before the deadline, since mail delays can cause late-filing penalties.
  • Keep a copy of your return and proof of mailing (such as certified mail receipt) for your records.

How to find your state's mailing address

The IRS publishes mailing addresses in the instruction booklet that comes with your tax form. If you ordered forms by mail or picked them up at a library, the address is printed inside the front cover. You can also find it on the IRS website at irs.gov by searching "where to file" or looking at the current year's form instructions.

The address depends on your state of residence. If you moved during the year, use the address for the state where you lived on December 31. If you live outside the United States, there is a separate address for overseas filers.

Write your name, address, and Social Security number on the return itself. Use a mailing address that matches the one on your return. If your address changed after you filed, you can update it with the IRS, but it's better to use the correct address from the start.

Filing electronically instead of by mail

Electronic filing means sending your return through approved software or a tax professional rather than printing and mailing it. The software connects directly to the IRS and transmits your return securely. You receive a confirmation number within minutes, and the IRS processes electronic returns much faster than paper ones.

You can file electronically through commercial tax software (such as TurboTax, H&R Block, or TaxAct), through a tax preparer or CPA, or through the IRS Free File program if your income is below a certain threshold. The IRS Free File program offers free software from participating companies for people who earn roughly $73,000 or less; the income limit changes each year.

When you file electronically, you don't print or mail anything. The software handles sending your return to the IRS. You'll receive a confirmation that the IRS received it, usually within 24 hours. This confirmation is your proof of filing and is more reliable than a mailing receipt.

Mailing a paper return safely

If you must mail a paper return, use regular first-class mail or certified mail with a return receipt. Certified mail costs more but gives you proof that the IRS received your return. Keep the receipt as your record.

Mail your return early — at least one week before the deadline — to account for mail delays. The IRS considers a return filed on time if it is postmarked by the deadline, even if it arrives later. However, if your mail is delayed and arrives after the deadline without a timely postmark, you may owe a late-filing penalty.

Include everything the IRS requires: the completed form, all schedules and attachments, your signature, and the date. If you owe taxes, include your payment. Do not staple or tape documents together; use a paper clip or rubber band instead. The IRS processes returns by machine, and staples can jam the equipment.

What happens after you send your return

If you filed electronically, the IRS typically acknowledges receipt within 24 hours. You'll receive a confirmation number that proves you filed. Processing usually takes 21 days, though it can take longer if the IRS needs more information or if there are errors on the return.

If you filed by mail, the IRS takes longer to process your return because it must be scanned and entered into their system. Processing typically takes 6 to 8 weeks. You can check the status of your return using the IRS "Where's My Refund?" tool on irs.gov, which updates every 24 hours.

If the IRS needs more information, they will mail you a notice. Do not ignore it. Respond within the timeframe given in the notice, usually 30 days. If you don't respond, the IRS may assess additional taxes or penalties.

Correcting an address mistake after filing

If you realize you sent your return to the wrong address, contact the IRS immediately at 1-800-829-1040. If your return hasn't been processed yet, they may be able to redirect it. If it has already been processed, the IRS will have recorded it correctly in their system regardless of the mailing address error, though there may be a delay.

If you filed electronically, there is no address issue — the software sent it to the correct IRS system automatically. If you filed by mail to the wrong state address, call the IRS to report it and ask whether you need to resubmit.

Frequently Asked Questions

Can I email my tax return to the IRS?

No. The IRS does not accept returns by email, fax, or any digital method except through approved tax software or a tax professional's filing system. If you want to file digitally, use IRS Free File, commercial tax software, or a tax preparer.

What if I miss the mailing deadline?

A return is considered filed on time if it is postmarked by the deadline, even if it arrives after. If your return arrives late without a timely postmark, you may owe a late-filing penalty. Filing electronically eliminates this risk because the IRS receives it instantly.

Do I need to use certified mail?

Certified mail is not required, but it provides proof that the IRS received your return. Regular first-class mail is acceptable. Keep any receipt or proof of mailing for your records in case questions arise later.

How do I know if the IRS received my return?

If you filed electronically, you'll receive a confirmation number within 24 hours. If you filed by mail, you can check the status using the IRS "Where's My Refund?" tool on irs.gov after a few weeks. The tool updates every 24 hours.

What if I filed to the wrong state address?

Call the IRS at 1-800-829-1040 to report the error. If your return hasn't been processed, they may redirect it. If it has been processed, the IRS will have it on file correctly, though there may be a processing delay.