PolicyEngine US

The Common Sense Institute @CSInstituteOR's new affordability report calculates state and federal income tax using PolicyEngine as part of its cross-state analysis of household costs. commonsenseinstituteus.org/oregon/researc…

.@TheProspect draws on PolicyEngine analysis in a new piece on competing tax-cut proposals, citing our estimates of poverty effects, distributional impacts, and fiscal cost. prospect.org/2026/03/16/dem…

In a new Break Glass report, @BudgetHawks cites PolicyEngine modeling as part of its surtax analysis. We estimate that a 1% surtax on AGI between $100K and $1M, plus a 2% surtax above $1M, would raise about $900 billion over a decade. crfb.org/papers/break-g…

New analysis: The Alternative Minimum Tax claws back up to 59% of @SenBooker's Keep Your Pay Act tax benefits. Read it: policyengine.org/us/research/ke… While Senator Booker's calculator does not capture the AMT interaction, ours does. Try it here: policyengine.org/us/keep-your-p…

Try it here: policyengine.org/us/keep-your-p…

NEW ANALYSIS: @SenBooker's Keep Your Pay Act - higher standard deduction, expanded CTC & EITC, higher top tax rates. Static model finds: - $5.2T 10-year cost - 73% of households gain, 1.6% lose in 2026 - Poverty falls 10% in 2026 We also provide a personalized calculator.

@JStein_WaPo Our simulation analysis: x.com/PolicyEngineUS…

New - Potential 2028 Dem contender Sen. Van Hollen out with a new tax plan today: Anyone who makes living wage or less — $46K single/$92K married — should pay no federal income tax Paid for by new millionaire surtax Dem 2028 ideas primary is underway… washingtonpost.com/business/2026/…

66.1 million households would pay less in tax in 2026, and 0.7 million would pay more in tax. Explore the full interactive here: policyengine.org/us/watca

Over 10 years and assuming no behavioral responses, we estimate the Working Americans' Tax Cut Act would raise $497 billion: the surtax raises $3.05T and the exemption costs $2.56T.

NEW INTERACTIVE: PolicyEngine has built a calculator analyzing Senator @ChrisVanHollen's Working Americans' Tax Cut Act. policyengine.org/us/watca Here's what's in it 🧵

@VitalCityNYC @nberpubs Unfortunately Claude Plugins are only available for Claude Code and Claude Cowork: code.claude.com/docs/en/plugins But stay tuned for new AI interfaces we'll be launching soon!

@PolicyEngineUS @nberpubs If we use Claude Pro chatbot and not Claude Code, can we integrate your new tool? If so how?

We've partnered with @nberpubs to build the next chapter of TAXSIM — an open-source, drop-in replacement powered by PolicyEngine's microsimulation engine. Works with CLI, Python, R, Stata, SAS, and Julia. Try it here: policyengine.org/us/taxsim

We just launched a plugin that brings PolicyEngine to @claudeai. Describe any tax or benefit reform in plain English. Claude runs a full microsimulation using our open-source model — 4,000+ variables, 65,000+ parameters, all 50 states. No code required. policyengine.org/us/claude-plug…

Happy Valentine's Day from PolicyEngine♥️

Happy Valentine's Day! We just launched PolicyEngine's marriage calculator. Find out if saying "I do" means a bonus or penalty for your household — covers all 50 US states + DC, with breakdowns across taxes, benefits, credits, and healthcare. Try it: policyengine.org/us/marriage