PolicyEngine UK

uk.policyengine.org

21 October 2026 21:57

At 4:30pm GMT on Budget day, Wednesday 28 October, we'll present our first estimates of what the Autumn Budget means for public finances, household incomes and poverty, and take your questions. Register free: us06web.zoom.us/meeting/regi...

PolicyEngine US

us.policyengine.org

23 August 2026 13:38

PolicyBench tests how accurately AI models compute US taxes and benefits. Two new rows: Ox Alpha, a cloaked preview model with no maker named, debuts fourth of 32 at 84.2% of answers within $1. Grok 4.6 debuts eighth at 82.8%, 1.9 points past Grok 4.5. policybench.org

Max Ghenis

maxghenis.bsky.social

03 May 2026 11:39

We added a ton of ingredients to the @policyengine.org cauldron last month: - 1,039 PRs merged (7× April 2025, 2× March 2026) - 341,318 source-code lines changed - 19 new repos US childcare subsidies, Forbes 400, UK student finance — all make our models more accurate and comprehensive.

PolicyEngine US

us.policyengine.org

15 April 2026 21:42

The first analysis from our AI and economics research initiative answers the question: What happens if income shifts from labor to capital? 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 19% of the increase.

PolicyEngine US

us.policyengine.org

02 March 2026 16:51

We've partnered with @nber.org 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