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    257 repositories

    • policyengine-api-v2

      Public
      Python
      •
      GNU Affero General Public License v3.0
      •1•1•45•5•Updated Apr 10, 2026Apr 10, 2026

    • policyengine-us

      Public
      The PolicyEngine US Python package contains a rules engine of the US tax-benefit system, and microdata generation for microsimulation analysis.
      pythontaxpolicy
      pythontaxpolicyeconomicsunited-statespublic-policyinequalitypovertyeconomic-policy
      Python
      •
      GNU Affero General Public License v3.0
      •206•140•1.1k•79•Updated Apr 10, 2026Apr 10, 2026

    • policyengine-us-data

      Public
      A package to create representative microdata for PolicyEngine US.
      Python
      •10•2•101•16•Updated Apr 10, 2026Apr 10, 2026

    • policyengine-api

      Public
      PolicyEngine's REST API for computing policy impacts.
      Python
      •
      GNU Affero General Public License v3.0
      •34•17•115•47•Updated Apr 10, 2026Apr 10, 2026

    • policyengine-app-v2

      Public
      The second iteration of PolicyEngine's free web app for computing the impact of public policy. Currently under development.
      HTML
      •3•1•134•22•Updated Apr 10, 2026Apr 10, 2026

    • policyengine-slides

      Public
      Monorepo for PolicyEngine presentation slide decks
      TypeScript
      •0•0•0•1•Updated Apr 10, 2026Apr 10, 2026

    • policyengine-uk-rust

      Public
      High-performance UK tax-benefit microsimulation engine in Rust
      Rust
      •0•0•1•1•Updated Apr 10, 2026Apr 10, 2026

    • california-wealth-tax

      Public
      Interactive tool analyzing fiscal impacts of California's proposed billionaire wealth tax under varying assumptions
      HTML
      •0•0•0•0•Updated Apr 10, 2026Apr 10, 2026

    • policyengine-api-v2-alpha

      Public
      Testing out a reduced APIv2 as a middle ground
      Python
      •0•0•11•63•Updated Apr 10, 2026Apr 10, 2026

    • liheap-repeal-dashboard

      Public
      Impact dashboard for federal LIHEAP repeal (DC, MA, IL)
      TypeScript
      •0•0•0•0•Updated Apr 9, 2026Apr 9, 2026

    • cliff-watch

      Public
      Python
      •
      MIT License
      •0•0•0•0•Updated Apr 9, 2026Apr 9, 2026

    • code-snippets

      Public
      A home for code snippets and fragments relevant to the team
      Python
      •
      MIT License
      •1•0•2•1•Updated Apr 9, 2026Apr 9, 2026

    • working-parents-tax-relief-act

      Public
      PolicyEngine dashboard for the Working Parents Tax Relief Act of 2026
      TypeScript
      •0•0•0•0•Updated Apr 9, 2026Apr 9, 2026

    • policyengine.py

      Public
      PolicyEngine's main user-facing Python package, incorporating country packages and integrating data visualization and analytics.
      pythonmodeltax-benefit
      pythonmodeltax-benefit
      Python
      •
      GNU Affero General Public License v3.0
      •8•5•10•4•Updated Apr 9, 2026Apr 9, 2026

    • policyengine-uk-chat

      Public
      UK tax and benefit policy chat assistant powered by PolicyEngine and Claude
      TypeScript
      •0•1•0•0•Updated Apr 9, 2026Apr 9, 2026

    • policyengine-ui-kit

      Public
      PolicyEngine UI kit — design tokens, Tailwind CSS v4 theme, and React components for dashboards and calculators
      TypeScript
      •1•0•2•3•Updated Apr 9, 2026Apr 9, 2026

    • economic-parameter-atlas

      Public
      TypeScript
      •0•0•0•0•Updated Apr 9, 2026Apr 9, 2026

    • us-state-eitcs-ctcs

      Public
      Dashboard showing the impacts of state EITCs and CTCs
      HTML
      •1•0•1•2•Updated Apr 8, 2026Apr 8, 2026

    • policyengine-household-api

      Public
      Python
      •
      GNU Affero General Public License v3.0
      •3•1•20•5•Updated Apr 8, 2026Apr 8, 2026

    • policyengine-us-improvements-2026

      Public
      Interactive dashboard and inventory summarizing improvements to policyengine-us and policyengine-us-data since January 1, 2026
      JavaScript
      •0•0•0•0•Updated Apr 8, 2026Apr 8, 2026

    • policyengine-model

      Public
      TypeScript
      •1•0•1•4•Updated Apr 8, 2026Apr 8, 2026

    • aspen-eitc-ctc

      Public
      Interactive calculator for the Aspen ESG EITC & CTC reform proposal
      TypeScript
      •0•0•0•0•Updated Apr 8, 2026Apr 8, 2026

    • nics-exemption-inactive-employees

      Public
      NICs exemption for recently-inactive employees — microsimulation dashboard
      JavaScript
      •0•0•0•0•Updated Apr 8, 2026Apr 8, 2026

    • calibration-diagnostics

      Public
      TypeScript
      •0•0•0•0•Updated Apr 8, 2026Apr 8, 2026

    • policyengine-uk

      Public
      An open-source static tax-benefit microsimulation model for the UK.
      pythonunited-kingdomtax
      pythonunited-kingdomtaxpolicyeconomicspublic-policyinequalitypovertypsl-catalogedeconomic-policy
      Python
      •
      GNU Affero General Public License v3.0
      •31•38•199•4•Updated Apr 7, 2026Apr 7, 2026

    • policyengine-claude

      Public
      Official Claude Code plugin for PolicyEngine development - agents, commands, and skills for tax/benefit microsimulation
      Python
      •
      MIT License
      •5•28•2•5•Updated Apr 7, 2026Apr 7, 2026

    • policyengine-skills

      Public
      Portable PolicyEngine skills and Claude wrapper source
      Python
      •
      MIT License
      •1•0•0•1•Updated Apr 7, 2026Apr 7, 2026

    • newsletters

      Public
      Newsletters
      HTML
      •
      GNU Affero General Public License v3.0
      •1•0•0•2•Updated Apr 7, 2026Apr 7, 2026

    • impact-iran-war-living-standards

      Public
      0•0•0•0•Updated Apr 7, 2026Apr 7, 2026

    • uk-spring-statement-2026

      Public
      Interactive analysis of the UK Spring Statement 2026 household impact
      JavaScript
      •0•0•0•1•Updated Apr 6, 2026Apr 6, 2026
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