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HL1Housing Living 101

Where To Mail Your Form 940 When You're Not Paying Tax

By Tanika Patel
6 minute read

Mail your Form 940 to the IRS service center that handles your state, not to a single national address

The IRS does not have one mailing address for Form 940. Instead, you send it to a regional service center based on where your business is located. The address changes depending on your state, and using the wrong one delays processing. The IRS publishes the correct mailing addresses in the Form 940 instructions each year, and they also appear on the IRS website under "Where to File" for your specific state.

If you are not paying tax with your return — meaning you owe zero or you have already paid through quarterly deposits — you still mail the form to the same state-based address. The only difference is that you do not include a check. The form itself goes to the exact same place whether payment is attached or not.

Key Takeaways

  • Form 940 mailing addresses are organized by state, not by payment status, so check the instructions or the IRS website for your state's service center address.
  • Using the wrong address causes delays; the IRS will eventually forward it, but processing takes longer.
  • The address you need appears in the Form 940 instructions booklet under "Where to File" and on IRS.gov.
  • Mail your form certified mail with return receipt so you have proof the IRS received it on a specific date.
  • If you filed quarterly estimated taxes or made payroll deposits during the year, you may owe nothing on Form 940, but you still file and mail it by the deadline.

How to find your state's correct mailing address

Open the Form 940 instructions booklet (Publication 15-B or the current year's equivalent) and turn to the section titled "Where to File." This section lists every state with its corresponding IRS service center address. The address depends on where your business is located, not where you live or where your accountant is.

You can also find the address on IRS.gov by searching "Form 940 mailing address" plus your state name. The IRS website updates these addresses annually, so checking there is faster than waiting for a printed booklet. Write down the full address, including the ZIP code, before you prepare your envelope.

Why the address matters even when you owe nothing

Form 940 is a required annual filing for employers, regardless of whether you owe federal unemployment tax. If you made quarterly deposits or your payroll did not trigger a tax liability, you still file the form — you just do not send a payment with it. Sending it to the wrong address does not excuse you from filing; it only delays the IRS's receipt and processing.

The IRS tracks filing dates by the postmark on your envelope, not by when they actually open it. If you mail to the wrong address and it gets forwarded, the postmark date still counts as your filing date. However, forwarding adds weeks to processing time, which can delay any refund you are owed or create confusion if the IRS later contacts you about the return.

Mailing your Form 940 without payment

Prepare your Form 940 as usual, sign and date it, and gather any required schedules or attachments. If you owe no tax, do not include a check or payment voucher. Place the form in an envelope with your name and address as the return address, and write the correct service center address on the front.

Use certified mail with return receipt requested. This costs a few dollars but gives you a receipt showing the date the IRS received your envelope. Keep this receipt with your tax records. If the IRS ever questions whether you filed on time, the certified mail receipt is your proof.

What happens after you mail it

The IRS typically processes Form 940 within 4 to 6 weeks of receipt. You will not receive a confirmation that they got it unless you used certified mail. If you filed electronically instead of by mail, you would get an immediate confirmation, but if you are mailing a paper form, the certified receipt is your only proof of timely filing.

If the IRS needs more information or finds an error, they will mail you a notice. This can take several weeks to arrive. If you included a phone number on your return, they may also call. Do not assume silence means approval; keep your records for at least three years in case the IRS contacts you later.

Common mistakes that delay processing

The most common error is mailing to a national IRS address instead of the state-specific service center. Another is forgetting to sign the form or leaving required fields blank. If you are filing on behalf of a business, make sure the employer identification number (EIN) on the form matches your business records exactly.

Do not staple or tape the form to anything. Do not fold it more than necessary. Do not include a cover letter unless the IRS specifically requested one. These small mistakes do not invalidate your filing, but they can slow processing or cause the form to be separated from its envelope.

If you need to file but cannot mail it

The IRS allows employers to file Form 940 electronically through approved software or through a tax professional. Electronic filing is faster, generates an immediate confirmation, and eliminates the risk of mailing to the wrong address. If you file electronically, you do not mail anything; the software submits it directly to the IRS.

If you miss the filing deadline, file as soon as you can. The IRS charges penalties for late filing, but the penalty is smaller if you file late than if you do not file at all. Filing late is better than not filing.

Frequently Asked Questions

Can I mail Form 940 to the main IRS address in Washington, D.C.?

No. The IRS will not process it there and will have to forward it to your state's service center, which adds weeks to processing. Always use the state-specific address listed in the Form 940 instructions.

Do I need to mail Form 940 if I had no employees during the year?

No. If you had no employees and paid no wages, you do not file Form 940. However, if you had even one employee for any part of the year, you must file, even if you owe no tax.

What if I mail Form 940 but the postmark is after the deadline?

The IRS considers the postmark date your filing date. If the postmark is after the deadline, you are considered late, and penalties apply. File early enough that the postmark will be before the deadline.

Can I mail Form 940 and Form 941 to the same address?

Not always. Form 941 (quarterly payroll tax) and Form 940 (annual unemployment tax) sometimes go to different service centers depending on your state. Check the instructions for each form to confirm the correct address.

Should I include a cover letter with Form 940?

No, unless the IRS sent you a notice asking you to respond to something specific. A cover letter can cause the form to be separated from your envelope or delayed. Mail only the form, schedules, and any documents the IRS specifically requested.