http://www.irs.gov/file/article/0,,id=111163,00.html
http://www.irs.gov/file/article/0,,id=111163,00.html
http://www.irs.gov/file/article/0,,id=111163,00.html
http://www.irs.gov/file/article/0,,id=111163,00.html
http://www.irs.gov/file/article/0,,id=111163,00.html
You must look at the 941 form for this information.
address for Form 941 when no employees for that month.
Form 941-V, the payment voucher for Form 941, should be mailed to the address specified in the Form 941 instructions based on your location and whether you are including a payment. For New York, if you are not enclosing a payment, you would typically mail it to the IRS address designated for your state. If you are making a payment, the address may differ, so it's essential to check the latest IRS guidelines or the specific instructions for Form 941-V for accurate mailing information.
IllinoisWhat
Illinois
Where do I file Form 941 From Pennsylvania not for profit assn.
Nashville Tennessee
where to find 941 for 2012 and Schedule B for 2012