http://www.cbafaq.com/salarycap.htm#Q21
21. What is the "luxury tax?" Why does it exist? How is it determined? Who pays it?
* For 2011-12 the league and players association agreed to use a figure of $70.307 million for the tax level.
* In 2012-13 the tax level is determined by taking 53.51% of projected BRI (see question number 13), subtracting projected benefits, and dividing by the number of teams in the league1. For 2012-13 the tax level is guaranteed to be no less than $70.307 million.
* Starting in 2013-14 they apply the same formula as 2012-13, except there is no guaranteed minimum.
The amount of tax a team pays depends on the season, the team salary as of the team's last regular season game, and whether the team is a "repeat offender":
* For 2011-12 and 2012-13, teams pay $1 for every $1 their team salary exceeds the tax level. There is no repeater rate.
* For 2013-14 teams pay an incremental rate based on their team salary. There is no repeater rate.
* For 2014-15 teams pay an incremental rate based on their team salary. They pay the repeater rate if they also were taxpayers in all of the previous three seasons.
* For 2015-16 and all subsequent seasons, teams pay an incremental rate based on their team salary. They pay the repeater rate if they were taxpayers in at least three of the four previous seasons.
In short, Lakers need to dump Gasol.