Andrew Eisenberg advises clients on a wide range of federal income tax issues related to corporate mergers and acquisitions. His practice includes taxable and tax-free stock and asset acquisitions and dispositions, post-acquisition restructurings, incorporation transactions, liquidating and non-liquidating distributions, application of the consolidated return regulations, and general tax consequences of transactions between shareholders and corporations. He has extensive experience practicing before the U.S. Treasury Department and the Internal Revenue Service, including representing clients in the private letter ruling process.

Andrew advised Pfizer in its post-acquisition integration of Pharmacia, Celgene in its post-acquisition integration of Pharmion, Ospraie Management in its $2.1 billion acquisition of ConAgra Foods' commodities trading unit, and Huntington Bank in its acquisition of Franklin Financial's mortgage loan portfolio.

Prior to joining Jones Day, Andrew was a partner in the national tax office of a Big Four accounting firm and an attorney-advisor in the Office of Associate Chief Counsel (Corporate) of the Internal Revenue Service, where his responsibilities included drafting income tax regulations and other published guidance.

Andrew is the lead author of Federal Taxation of Corporations and Shareholders (Wolters Kluwer 2012). He is an adjunct professor of taxation at Georgetown University Law Center and teaches advanced corporate reorganizations.