“Find & Select” features. To report issues, concerns or any problems that you may experience contact the OPR at Internal Revenue Service, Office of Professional Responsibility, SE:OPR, Room 7238/IR, 1111 Constitution Avenue NW., Washington, DC 20224 or fax to #855-814-1722. Return Preparer Office OPR targets questionable practices by tax return preparers and tax relief companies. Consumers can report problems to the IRS on Form 14157, Complaint: Tax Return Preparer. The IRS Return Preparer Office will process the complaint and, if appropriate, submit it to OPR for investigation. References External links Search for Disciplined Tax Professionals (official website) Form 14157, Complaint: Tax Return Preparer Form 14157-A, Tax Return Preparer Fraud or Misconduct Affidavit Internal Revenue Service