The Tax Policy Center has published a report,  A Preliminary Analysis of the 2008 Presidential Candidates’ Tax Plans. Here is the abstract. I have to admit I am impressed with Obama’s plan so far, it is much more progressive for us average joe’s than McCain’s.

Tax and fiscal policy will loom large in the next president’s domestic policy agenda. Nearly all of the tax cuts enacted since 2001 expire at the end of 2010 and the individual alternative minimum tax (AMT) threatens to ensnare tens of millions of Americans. While a permanent fix palatable to both political parties has proven elusive, both candidates have proposed major tax changes. This report describes how we performed our modeling and analysis, outlines the major tax proposals, and discusses the implications of their policies for the revenue raised, taxpayer economic activity, and the distribution of the tax burden.

Here is the bottom line:

If enacted, the Obama and McCain tax plans would have radically different effects on the distribution of tax burdens in the United States. The Obama tax plan would make the tax system significantly more progressive by providing large tax breaks to those at the bottom of the income scale and raising taxes significantly on upper-income earners. The McCain tax plan would make the tax system more regressive, even compared with a system in which the 2001–06 tax cuts are made permanent. It would do so by providing relatively little tax relief to those at the bottom of the income scale while providing huge tax cuts to households at the very top of the income distribution.

Go here for the complete story, further discussion and plan graphics.