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Internal Revenue Service is located at Department of Treasury, Philadelphia, PA 19255. Charles D Rossotti is the Chief Executive Officer at Internal Revenue Service. You can contact Charles at (202) 622-5000. The CEO of Internal Revenue Service is Charles D Rossotti.
They have set up a few toll-free numbers to assist you: 1  1-800-829-3676 â if you need to order forms, publications, or instructions.  1-800-829-1040 - if you have tax questions regarding your personal income taxes.