TAXSIM

 

TAXSIM is an ongoing project of Dan Feenberg of the NBER and his collaborators. It allows one to calculate "federal and state income tax liabilities from survey data. You prepare the data, the NBER TAXSIM program returns the tax calculations in seconds." The data can be uploaded to the simulator. It is quite wide-ranging -- you can "calculate federal income taxes for any year from 1960 to the present and state income taxes after 1976." This site also offers documentation on TAXSIM and tax data of various sorts for various years:

 

  • Income elasticity of the US federal income tax
  • Dollar weighted average marginal income tax rates
  • US rates at constant real income levels
  • High income shares
  • Maximum state tax rates

     

     

    • http://www.nber.org/~taxsim/

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