Call 1-800-829-1040 if you are an individual with a question.
Call 1-800-829-4933 if you are a business with a question.
Call 1-800-829-4059 (TDD) if you have a question and are hearing-impaired.
Call the Philadelphia IRS office at 1-215-516-2000 if you live outside of the country. You can also mail in your questions to the Internal Revenue Service, P.O. Box 920, Bensalem, PA 19020.
Find your local IRS office by clicking on your state on the map on the IRS website (see Resources). Do this if you want to go to your local IRS office and speak to an agent face-to-face.