What is the mailing address for IRS Form 941 if you live in Massachusetts?

If you live in Massachusetts and are mailing IRS Form 941, the address depends on whether you are including a payment. If you are not enclosing a payment, send it to: Department of the Treasury, Internal Revenue Service, Cincinnati, OH 45999-0005. If you are including a payment, mail it to: Internal Revenue Service, P.O. Box 932200, Louisville, KY 40293-2200. Always double-check the IRS website for the most current information.