The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
General Explanation of Public Law 115-97: Copies of the General Explanation of Public Law 115-97 received by the Joint Committee on Taxation at the time of release have been substantially depleted ...
Overview Of The Federal Tax System As In Effect For 2018