Origins & History

Many people have contributed to Tax-Calculator and we hope the number of contributors will continue to grow.

Origins of Tax-Calculator

Tax-Calculator is a descendant of TAXCALC and Internet TAXSIM version 9 , programs written by Dan Feenberg and Inna Shapiro, and hosted at NBER. The code translation into Python concluded with the first addition to the Tax-Calculator GitHub source-code repository on July 29, 2014.

Subsequent Contributors to Tax-Calculator

The Tax-Calculator repository contains a contributor list containing everyone who has developed code that has been committed to the repository since the first commit on July 29, 2014.