This recent developments outline discusses, and provides context to understand the significance of, the most important judicial decisions and administrative rulings and regulations promulgated by the Internal Revenue Service and Treasury Department during the most recent twelve months — and sometimes a little farther back in time if we find the item particularly humorous or outrageous. Most Treasury Regulations, however, are so complex that they cannot be discussed in detail and, anyway, only a devout masochist would read them all the way through; just the basic topic and fundamental principles are highlighted – unless one of us decides to go nuts and spend several pages writing one up. This is the reason that the outline is getting to be as long as it is. Amendments to the Internal Revenue Code generally are not discussed except to the extent that (1) they are of major significance, (2) they have led to administrative rulings and regulations, (3) they have affected previously issued rulings and regulations otherwise covered by the outline, or (4) they provide Dan and Marty the opportunity to mock our elected representatives; again, sometimes at least one of us goes nuts and writes up the most trivial of legislative changes. The outline focuses primarily on topics of broad general interest (to us, at least) – income tax accounting rules, determination of gross income, allowable deductions, treatment of capital gains and losses, corporate and partnership taxation, exempt organizations, and procedure and penalties. It deals summarily with qualified pension and profit sharing plans, and generally does not deal with international taxation or specialized industries, such as banking, insurance, and financial services. Please read this outline at your own risk; we take no responsibility for any misinformation in it, whether occasioned by our advancing ages or our increasing indifference as to whether we get any particular item right. Any mistakes in this outline are Marty’s responsibility; any political bias or offensive language is Ira’s; and Dan is just irresponsible.Bruce A. McGovern, Vice President, Associate Dean, and Professor of Law, South Texas College of Law, contributed to this article. Bruce’s contribution is (relative) youth.