See, for example, https://github.com/open-source-economics/tax-calculator. We also make many of the models available through webapps like https://www.ospc.org/taxbrain and https://www.ospc.org/ccc. The source code for those is available at https://www.github.com/opensourcepolicycenter/webapp-public
See, for example, https://github.com/open-source-economics/tax-calculator. We also make many of the models available through webapps like https://www.ospc.org/taxbrain and https://www.ospc.org/ccc. The source code for those is available at https://www.github.com/opensourcepolicycenter/webapp-public