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The Impact of the Bipartisan Tax Fairness and Simplification Act of 2010 (“Wyden-Gregg”) on Effective Marginal Tax Rates

The Wyden-Gregg tax reform proposal would represent a broad reform of the federal income tax system. This paper examines the plan’s impact on individuals’ effective marginal tax rates (EMTR), the incremental amount of tax owed on an additional dollar of income. We examine the impact on the EMTR for both wage income and realized capital gains against current law and current policy baselines.
We find the Wyden-Gregg plan would lower the overall average EMTR on wages relative to both current law and current policy, but would raise the overall average EMTR on gains when compared with those same two baselines.

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