Mail Form 940 to the IRS address that matches your state

The mailing address for Form 940 depends on which state your business is located in. The IRS publishes a specific list of addresses by state, and using the wrong one delays processing. You do not need a payment coupon or check when you mail Form 940 without payment — just the completed form itself.

The IRS divides the country into regions, and each region has its own processing center. Your state falls into one of these regions, and that determines where your envelope goes. If you send Form 940 to the wrong address, the IRS will eventually forward it, but this adds weeks to processing time.

You can find the correct address in two places: the Form 940 instructions (page 2 of the current year's form) or the IRS website under "Where to File" for Form 940. Both sources are updated each year, so check the current version before you mail.

Key Takeaways

  • Form 940 mailing addresses are organized by state and region, and using the wrong address delays processing by several weeks.
  • The correct address appears on page 2 of the Form 940 instructions and on the IRS website under "Where to File."
  • When you mail without payment, send only the completed form — do not include Form 941-V or a check.
  • The IRS processes mailed returns more slowly than e-filed returns, typically taking 4 to 6 weeks to post to your account.
  • Keep a copy of Form 940 and your mailing receipt for your records in case the IRS says they never received it.

How the IRS organizes Form 940 mailing addresses by region

The IRS operates 10 service centers across the country, each handling returns from specific states. For example, businesses in California, Hawaii, and several other western states mail to one address; businesses in Texas, Oklahoma, and Arkansas mail to a different one. The state where your business has its principal place of business determines which center processes your return.

If your business operates in multiple states, use the address for the state where you have your main office or headquarters. Do not split the form or send copies to multiple addresses.

The IRS updates these addresses occasionally, though the changes are rare. The safest approach is to check the current year's Form 940 instructions before you mail, rather than relying on an address from a previous year.

Finding the correct mailing address for your state

Open the Form 940 instructions for the tax year you are filing. Go to page 2 and look for the section titled "Where to File." This section lists all 50 states and their corresponding mailing addresses. Find your state, copy the address exactly as printed, and use it on your envelope.

If you cannot locate the instructions, visit IRS.gov and search for "Form 940 Where to File." The IRS maintains this information on their website and updates it each year. You can also call the IRS at 1-800-829-1040 and ask for the mailing address for your state, though phone wait times are often long.

Write the address clearly on your envelope. The IRS uses optical scanning equipment to sort incoming mail, so illegible handwriting can cause delays. If possible, use a label or type the address.

What to include when you mail Form 940 without payment

Mail only the completed Form 940 itself. Do not include Form 941-V (the payment voucher), a check, or any other documents unless the IRS specifically requested them in a notice. The payment voucher is only for returns where you are sending money with the form.

Include a cover letter if you want to, but it is not required. A simple note stating your business name, EIN, and tax year can be helpful if questions arise later. Keep the letter brief and factual.

Make a copy of Form 940 before you mail it. This copy is your proof that you filed, and it protects you if the IRS later claims they never received the original. Also keep your mailing receipt from the post office.

How long the IRS takes to process mailed Form 940 returns

Mailed returns take longer to process than e-filed returns. The IRS typically needs 4 to 6 weeks to receive, scan, and post a mailed Form 940 to your account. During busy filing seasons (January through April), processing can take 8 weeks or longer.

You can check the status of your return on IRS.gov using the "Where's My Return?" tool, though this tool may not show results until 3 to 4 weeks after you mail. If the tool says it has no record of your return after 6 weeks, contact the IRS to confirm they received it.

If you need your return processed faster, consider e-filing instead. The IRS accepts Form 940 electronically through approved tax software or a tax professional, and e-filed returns are processed within 2 to 3 weeks.

What to do if you are unsure whether your Form 940 arrived

Wait at least 6 weeks after mailing before you assume the IRS did not receive it. During this time, use the "Where's My Return?" tool on IRS.gov to check status. You will need your EIN, the tax year, and the amount of tax shown on the form.

If 6 weeks have passed and the tool shows no record, call the IRS at 1-800-829-1040. Have your copy of Form 940, your mailing receipt, and your EIN ready. The IRS can search their records and tell you whether the return was received and posted.

If the IRS confirms they never received it, you can mail a new copy or e-file a replacement return. Include a note explaining that this is a duplicate filing. Keep documentation of the original mailing and the replacement filing together.

Mailing address format and tips to avoid delays

Use standard business envelope format: your return address in the top left, the IRS address in the center, and proper postage. The IRS address should be printed or written clearly, with the street address on one line, the city and state on the next, and the ZIP code on the third line.

Mail your return using First-Class Mail or Priority Mail. Do not use certified mail or registered mail — the IRS does not track these services, and they may cause sorting delays. Standard First-Class Mail is sufficient and arrives within 3 to 5 business days to most service centers.

If you want proof of mailing, ask the post office for a receipt showing the date and destination ZIP code. This receipt is not the same as delivery confirmation, but it proves you mailed the form on a specific date. Keep this receipt with your copy of Form 940.

Frequently Asked Questions

Can I mail Form 940 to the IRS office in my city instead of the regional address?

No. The IRS requires Form 940 to go to the specific regional service center for your state. Mailing to a local IRS office will delay processing because the office will have to forward it to the correct center. Always use the address listed in the Form 940 instructions.

What if I mail Form 940 but later realize I made a mistake on it?

If you catch the error before the IRS processes the return, you can mail an amended Form 940-X. If the IRS has already processed your original return, file Form 940-X to report the correction. Do not mail a second copy of Form 940 — this creates confusion and may be treated as a duplicate filing.

Do I need to use a specific type of envelope or postage?

No. Use a standard business envelope with First-Class Mail postage. The IRS does not require special envelopes, colored paper, or certified mail. Standard postage is sufficient and avoids sorting delays that sometimes occur with special services.

How do I know if the IRS received my Form 940 if I did not get a receipt?

Use the "Where's My Return?" tool on IRS.gov after 3 to 4 weeks. If the tool shows no record after 6 weeks, call the IRS at 1-800-829-1040 with your EIN and tax year. They can search their system and confirm whether the return was received.

Is it better to mail Form 940 or e-file it?

E-filing is faster and more reliable. E-filed returns are processed within 2 to 3 weeks, while mailed returns take 4 to 6 weeks or longer. E-filing also eliminates the risk of mail loss. If speed matters, use tax software or a tax professional to e-file instead of mailing.