The Arent Fox Tax practice represents taxpayers before the Internal Revenue Service, District of Columbia, Maryland, Virginia, New York and other state tax authorities and all courts having jurisdiction over federal civil and criminal tax disputes. Our attorneys negotiate directly with federal, state and local tax assessors. In administrative matters, we obtain IRS National Office rulings on proposed transactions and employee plans; represent taxpayers before the audit, appeals, collection and criminal investigation divisions of the IRS. Arent Fox can also litigate a tax issue, if needed.