John P. Warner focuses his practice on international and corporate tax matters and the taxation of financial instruments and securitization transactions. He has advised foreign-based individuals and businesses with respect to U.S. investments and activities and U.S.-based individuals and businesses with respect to foreign investments and activities. John is co-chair of the Business & International Tax Practice Group and former co-office head of the firm’s Washington, D.C. office.
He has more than 30 years of experience in domestic and international federal income tax and business planning, including the structuring of business formations, joint ventures and mergers and other domestic and cross-border business acquisitions and dispositions. He has advised a wide variety of U.S. citizens living abroad and foreign residents with U.S. activities and investments.
He has helped to structure numerous foreign acquisitions, operations and investments by U.S. businesses and investors and to structure numerous U.S. acquisitions, operations and investments by foreign businesses and investors. John has experience in structuring various financial products, and providing issuers and investors advice as to the tax consequences of these products.
He has represented many clients in obtaining Internal Revenue Service National Office rulings and in tax controversy matters, including IRS Appeals Office cases, competent authority proceedings, the resolution of transfer pricing disputes and voluntary disclosure of offshore financial accounts, assets and associated income.
His recent experience has extended to alternative energy tax credit and finance arrangements and federal excise tax refund claims under the Export Clause of the constitution, and other excise tax disputes. He has litigated disputes in the United States Tax Court and the United States Claims Court, including Oak Industries, Inc. v. Commissioner, 96 T.C. 559 (1991), and Libbey v. Commissioner, 55 T.C.M. (CCH) 1052 (1988), and wrote an influential amicus brief in Indianapolis Power & Light Co. v. Commissioner, 493 U.S. 203 (1990).
- University of California at Berkeley, J.D., 1977, Articles Editor for the Industrial Relations Law Journal
- The George Washington University, B.A., 1971
- Past Chair, Transfer Pricing Committee, Section of Taxation, American Bar Association (2007-2009)
- International Fiscal Association
- State Bar of California
- District of Columbia Bar
- United States Supreme Court Bar Association
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