PolicyEngine US

PolicyEngine at the @codeforamerica Summit this week. Thu 2pm — @DaphneRHansell on Coverage Compass: how life events change health coverage. Fri 2pm — @MaxGhenis moderating a panel with three orgs using PolicyEngine to calculate eligibility and amounts for different purposes: MyFriendBen, Amplifi, and Better Government Lab at Georgetown. Say hi in Chicago.

See the analysis, including a personalized calculator, here: uhero.hawaii.edu/the-true-cost-…

New @UHEROnews analysis uses PolicyEngine to simulate Hawaii's childcare credit bills — first the direct household effect of the expanded CDCC, then the integrated CDCC, EITC, SNAP, WIC, and state income tax impact when a second earner enters the workforce in response.

We added a ton of ingredients to @ThePolicyEngine cauldron last month: - 1,039 PRs merged (7× April 2025, 2× March 2026) - 341,318 source-code lines changed - 19 new repos Childcare subsidy rules, Forbes 400, better reproducibility - all make our models more accurate & useful.

The first analysis from our AI and economics research initiative answers the question: What happens if income shifts from labor to capital? We find a 10% shift raises the top 1%'s market income share from 25.7% to 29.3%. After taxes and transfers: 21.4% to 24.4%. Policy absorbs about 19% of the increase. policyengine.org/us/ai-inequali…

We were also cited in Rep. McDonald Rivet’s press release of the bill: mcdonaldrivet.house.gov/media/press-re…

Use our calculator below to explore the effect on your household, more nationwide impacts, and how each congressional district would benefit from the WPTRA: policyengine.org/us/working-par…

NEW INTERACTIVE: @repkmr has released the Working Parents Tax Relief Act (WPTRA), which increases the maximum EITC benefit by $5,500 for each child under 4 in a tax unit. We project the bill would:  - Lower federal revenues by $184.1B over 10 years - Benefit 2.9% of households and reduce child poverty by 1.4% in 2026

If you think LLMs are mostly typing back and forth with chatbots, this post by @PolicyEngineUS is a really helpful worked example on what it looks like to layer agents to collapse 2-3 weeks of work into 90 minutes. policyengine.org/us/encode-poli…

The Living Wage Institute has adopted PolicyEngine for the tax calculations behind their living wage data. Read how our model is improving the accuracy of their household tax estimates — from iterative income solving to local tax coverage. livingwage.institute/post/how-we-re…

Put your assumptions about the billionaire tax to the test: policyengine.org/us/california-…

How much would California's billionaire wealth tax actually raise? It depends on your assumptions about avoidance, departures, and income tax loss. We built an interactive calculator that lets you explore the tradeoffs — with presets calibrated to existing papers.

@MaxGhenis and @ThePolicyEngine team have integrated frontier agentic AI into the most expansive open source microsimulation model of US fiscal policy. AI allows easier use and access as well as automates much of the model creation and maintenance. youtu.be/Ke_J3pOdL8k?si…

The @JECRepublicans just released an Immigration Fiscal Impact Calculator powered by PolicyEngine's tax and SNAP calculations. Try it here: jec.senate.gov/public/index.c…

We updated the State Legislative Tracker: You can now track tax bills across all 50 states, see each bill's legislative stage, follow real-time activity, and jump to full PolicyEngine analysis. Try it at policyengine.org/us/state-legis…

Big thanks to @DTrim_99 & @PolicyEngineUS for crunching the numbers here

Key features of our TANF calculator include: - State-specific estimates - Income & benefits chart - Interactive heatmap - State rankings - Scenario analysis Try it out: policyengine.org/us/tanf-calcul…

With our new calculator for the Temporary Assistance for Needy Families (TANF) cash assistance program, you can estimate TANF eligibility and benefit amounts for any household across all 50 states and DC.

See the full analysis, including distributional and household-level impacts here: policyengine.org/us/state-legis…

NEW: Rhode Island HB8338 would create a $660 Child Tax Credit for children under 19, while eliminating the dependent exemption for qualifying children. We estimate that in 2027 it would: • Cost $107 million • Benefit 43% of Rhode Island residents • Lower child poverty by 4.4%