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PolicyEngine UK

@uk.policyengine.org

22 followers 6 following 41 posts

policyengine.org/uk

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PolicyEngine UK @uk.policyengine.org · 28/02/2026

We just launched a plugin that brings PolicyEngine to Claude. Describe any tax or benefit reform in plain English. Claude runs a full microsimulation using our open-source model — 700+ variables, 1,200+ parameters, NI to UC. No code required. policyengine.org/uk/claude-pl...

Claude Code with the PolicyEngine plugin.

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PolicyEngine UK @uk.policyengine.org · 27/01/2026

Our new dashboard analyses the Scottish Budget 2026-27: 📊 £64m cost in 2026-27 → £196m revenue by 2030-31 📈 Threshold uplifts, SCP expansion, rate freezes 🏠 Household calculator to see your impact Explore: policyengine.org/uk/scottish-budget-2026-27

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PolicyEngine UK @uk.policyengine.org · 06/01/2026

2025 was a landmark year for PolicyEngine UK. 1,010 local areas modelled 38 reports & trainings published 9 Autumn Budget provisions analysed From the Local Areas Dashboard to GiveCalc UK—here's what we accomplished. Explore our interactive year in review: policyengine.org/uk/2025-year-in-review

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PolicyEngine UK @uk.policyengine.org · 10/12/2025

Our complete analysis of the UK Autumn Budget 2025 is now live. New interactive dashboard lets you explore how all 9 provisions interact—by income decile, constituency, and year through 2030-31. Explore: policyengine.org/uk/autumn-budget-2025

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PolicyEngine UK @uk.policyengine.org · 02/12/2025

Launching GiveCalc for UK taxpayers 🇬🇧 Calculate your Gift Aid tax relief in seconds. Enter your income and donation — see exactly how much you save. ✓ Higher rate relief (40%/45%) ✓ Scottish income tax rates ✓ Personal Allowance taper effects

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PolicyEngine UK @uk.policyengine.org · 28/11/2025

The UK's first rail fare freeze in 30 years will cost £145m in 2026-27, rising to £775m cumulative by 2030-31. Read our new report for more on the revenue and distributional implications: www.policyengine.org/uk/research/...

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PolicyEngine UK @uk.policyengine.org · 28/11/2025

Revenue and distributional impacts vary by behavioural assumptions. Interactive charts let you explore all scenarios.

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PolicyEngine UK @uk.policyengine.org · 28/11/2025

NEW: How will the £2,000 cap on salary sacrifice pension contributions affect UK workers? We modelled four behavioural scenarios to show how revenue and distributional impacts vary.

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PolicyEngine UK @uk.policyengine.org · 27/11/2025

The new high value council tax surcharge will raise £400m/year from £2m+ properties. Top 10 constituencies = 35% of revenue. Cities of London & Westminster alone: 10%. Explore our latest Autumn Budget analysis and interactive: www.policyengine.org/uk/research/...

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PolicyEngine UK @uk.policyengine.org · 27/11/2025

The OBR revised up its inflation and earnings forecasts in the November 2025 Autumn Budget. We compare the projections and explain what changed for PolicyEngine users. policyengine.org/uk/research/...

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PolicyEngine UK @uk.policyengine.org · 26/11/2025

NEW: We've modelled the Autumn Budget fuel duty freeze Key findings for 2026-27: - £2.8bn revenue cost - 46.7% of people gain - Lowest decile: +0.30% income - Highest decile: +0.11% income - 0.18% reduction in inequality www.policyengine.org/uk/research/...

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PolicyEngine UK @uk.policyengine.org · 26/11/2025

Where would a mansion tax hit hardest? We mapped 2024 property sales above £2m by constituency. Three central London seats account for 21% of all high-value sales nationwide. Explore the interactive map and toggle between thresholds: policyengine.org/uk/research/uk-mansion-tax-autumn-budget

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PolicyEngine UK @uk.policyengine.org · 03/11/2025

We're at capacity for "PolicyEngine 2.0 and the Future of Public Policy Analysis" today at Central Hall Westminster! Excited to welcome researchers and policymakers for a day of demos, applications, and discussions. Here's what we have planned 👇

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PolicyEngine UK @uk.policyengine.org · 10/09/2025

How would changing the VAT threshold from £90k affect revenues? Our new firm microsimulation model shows: • £70k threshold: +£640m revenue • £100k threshold: -£370m revenue • £120k threshold: -£1.1bn revenue All estimates for 2026-27.

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