Follow Us

Sunlight Foundation has had such an incredible journey from 2006 to now. Join us in celebrating eight years of success by viewing and sharing our interactive report, Milestones and Metamorphosis.

Help us build on our eight year        momentum!

Contribute before year's end:
Donate to Sunlight today!


Companies that lobby more on taxes pay less in taxes


Earlier this year, we learned that General Electric paid no federal income taxes. One reason, the New York Times reported, was that "G.E. has spent tens of millions of dollars to push for changes in tax law."

As it turns out, G.E. is not alone in aggressively (and seemingly successfully) lobbying on tax legislation. According to a new Sunlight analysis, the more tax bills companies lobby on, the lower their effective tax rate.  As the graph below shows, the companies that lobby on the most tax bills generally pay the lowest tax rates.

Effective Tax Rates of Fortune 100

The ten Fortune 100 companies that lobbied on 50 or more bills since 2008 paid an average effective tax rate of 17.1 percent in 2010; the ten companies that lobbied on between 25 and 49 bills paid an average effective tax rate of 18.0 percent; the remaining publicly-traded companies paid an average effective tax rate of 26.0 percent. The companies that lobbied on the most tax bills also have seen their tax rates decline the most since 2007.

Moreover, we estimate that for the average company, each additional tax bill a company lobbied on since 2008 is associated with a lower 2010 tax rate of between 0.13 and 0.36 percentage points, depending on the statistical estimation (keep reading).


To conduct the analysis, we calculated the tax rate for all publicly traded companies on the Fortune 100 list for 2007, 2008, 2009, and 2010 using the Gupta-Newberry method. We also summed the reported lobbying on tax bills since 2008 for these companies.

Ten companies lobbied on more than 50 bills related to taxes since 2008. On average, these companies paid an effective tax rate of 30.0 percent in 2007. By 2010, their average effective tax rate had fallen to 17.1 percent, a 43 percent decline.

Another ten companies lobbied on between 25 and 49 bills related to taxes during this period. On average these companies paid an effective tax rate of 23.5 percent in 2007. By 2010, their average effective tax rate had fallen to 18.0 percent, a 24 percent decline.

The remainder of the publicly-traded Fortune 100 companies on average paid an average effective tax rate of 31.9 percent in 2007 and 26.0 percent in 2010, and 18 percent decline – not bad, but not as good as their more heavily-lobbying competitors on either the decline or the 2010 tax rate.

In other words, the companies that lobbied on the most tax bills since 2008 have, on average, enjoyed the greatest decline in their effective tax rates since 2007 and now pay, on average, the lowest effective tax rates.

For the more data-oriented, read on for a slightly more in-depth statistical analysis.


The first figure below plots the total tax bills since 2008 as the x-axis and the effective tax rate these companies paid in 2007 as the y-axis. From this graph, it should be clear that there is no correlation between what companies were paying in taxes in 2007 and how much they would lobby on taxes in the future. (We’ve fitted a linear regression and a local smoothing line to the data to show the relationship in more detail.)

The next figure below shows the relationship in 2010. Now there is a clear correlation: the more tax bills a company lobbied on since 2008, the lower its effective tax rate is likely to be.

In a bivariate linear regression model (see model 1 below), the predicted effect is that for every additional bill lobbied on, a company will reduce its effective tax rate by 0.13 percentage points.

In the multivariate linear regression model (controlling for total spent on lobbying, total bills lobbied on, the 2007 tax rate the company paid, and including fixed effects for sector -- see model 2 below) the effect of each additional tax bill on lobbying outcome appears to be even greater. It is associated with a tax rate decline of 0.36 percentage points.

(1) (2)
Tax bills lobbied on (2008-present) -0.129* (0.070) -0.358** (0.124)
Total spent on lobbying (2008-present) 0.000 (0.000)
Total bills lobbied on (2008-present) 0.078** (0.028)
2007 tax rate 25.43** (6.86)
Sector fixed effects No Yes
Number of observations 91 91
R-squared 0.029 0.243
This conclusion is in line with more extensive research done by Brian Kelleher Richter, Krislert Samphantharak, and Jeffrey F. Timmons, who concluded in a recent paper that “Increasing registered lobbying expenditures by 1% appears to lower effective tax rates by somewhere in the range of 0.5 to 1.6 percentage points for the average firm that lobbies.”

Certain caveats are obviously in order, the most important being that disclosure of bills lobbied on may not be consistent across companies. The analysis relies on voluntary disclosure forms, and companies may have different practices for disclosing specific bills. At best, the number of tax bills listed is only a proxy for how intensely companies are lobbying on tax issues. However, it is the best proxy available.

Second, this is far from a perfect correlation. The two companies who lobbied on the most tax bills (John Deere and Exxon Mobil) continue to pay quite high tax rates. In the scatterplots, they are two dots way above the regression line in the upper right hand corner.

Nonetheless, these trends do seem quite compelling, and highly suggestive. Companies that lobby extensively on taxes appear to be getting something quite substantial for their efforts.