Here is the official list of tax paying teams, and their amounts paid, in the 2011/12 NBA season.
Los Angeles Lakers: $12,557,264.
Boston Celtics: $7,365,867.
Miami Heat: $6,129,340.
Dallas Mavericks: $2,738,843.
San Antonio Spurs: $2,514,275.
Atlanta Hawks: $666,199.
By opting to keep Jerry Stackhouse for the full year, then, Atlanta paid the price.
It is of note that that is the smallest amount of league-wide tax paid in any season since its inception, and by quite a long way. The previous lowest was the $55,564,006 paid in 2006-07. And in that season, $45,142,002 of that bill was New York’s.