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PolicyEngine UK

@uk.policyengine.org
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policyengine.org/uk

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PolicyEngine UK @uk.policyengine.org · 19/06/2026
New peer-reviewed, open-access paper: PolicyEngine microsimulation helped 39 UK citizens deliberate real fiscal-policy trade-offs during the cost-of-living crisis — a method later adopted by the UK Climate Change Committee. doi.org/10.1016/j.so...
doi.org
Redirecting
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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
Free at givecalc.org (By the way, PolicyEngine is a registered charity)
givecalc.org
GiveCalc - Charitable Donation Tax Calculator
Calculate how charitable giving affects your taxes. Powered by PolicyEngine.
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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
See our full analysis for more: www.policyengine.org/uk/research/...
policyengine.org
PolicyEngine
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
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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
Key findings: - 4.9 million workers use salary sacrifice for pensions - 3.3 million (68%) contribute above £2,000 - Total salary sacrifice contributions: £22.7bn
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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
Here's how these four landed in the Autumn Budget: Repealing two-child limit ✅ Increasing income tax by 2p ❌ Reducing NI by 2p ❌ Freezing income tax thresholds ✅ Adjusting VAT thresholds ❌ Surcharge on high-value properties ✅ Stay tuned for analysis of other provisions.
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PolicyEngine UK @uk.policyengine.org · 26/11/2025
We'll be releasing an Autumn Budget Dashboard this afternoon with real-time analysis of announced policies. Follow along at policyengine.org
policyengine.org
PolicyEngine
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
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PolicyEngine UK @uk.policyengine.org · 26/11/2025
Reported: levy on homes over £2m. We mapped 2024 property sales: • 3 central London seats: 21% of high-value sales • London overall: 45-46% • Top 10 seats (all London/commuter belt): 36% policyengine.org/uk/research/...
policyengine.org
PolicyEngine
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
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PolicyEngine UK @uk.policyengine.org · 26/11/2025
The Telegraph reported a potential VAT threshold increase. Our analysis: • £100k threshold: -£371m, exempts ~48,000 firms • £70k threshold: +£642m, adds 109,000 firms Full analysis: policyengine.org/uk/research/...
policyengine.org
PolicyEngine
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
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PolicyEngine UK @uk.policyengine.org · 26/11/2025
Reported: +2pp income tax, -2pp NI, extended freezes Our findings: • +£6.9bn revenue • Under £58k: gain • Over £58k: lose up to £1,748/year • Pensioners pay only the IT hike policyengine.org/uk/research/...
policyengine.org
PolicyEngine
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
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PolicyEngine UK @uk.policyengine.org · 26/11/2025
The two-child benefit limit restricts Universal Credit to the first two children. Our analysis of abolishing it: • Cost: £2.5bn/year • 300,000 children lifted out of poverty • Child poverty rate falls 1.2pp Full analysis: policyengine.org/uk/research/...
policyengine.org
PolicyEngine
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
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PolicyEngine UK @uk.policyengine.org · 26/11/2025
Chancellor Reeves delivers the Autumn Budget at 12:30 PM. Here's our analysis of 4 policies the government may announce: 🧵👇
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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 · 25/11/2025
NEW: The Times reported Chancellor Reeves considered raising income tax by 2pp while cutting NI by 2pp. We modeled the package. In 2026-27: +£18.6bn from income tax, -£11.7bn from NI cut. Net £6.9bn. By 2029-30, with the threshold freeze extension: £15.4bn. www.policyengine.org/uk/research/...
policyengine.org
PolicyEngine
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
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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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Reposted by PolicyEngine UK
PolicyEngine @policyengine.org · 31/10/2025
BREAKING: PolicyEngine's microsimulation model projects a surge in candy consumption in the coming hours. Happy Halloween! 🎃
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PolicyEngine UK @uk.policyengine.org · 01/10/2025
Update: We have moved this event to Monday, 3rd November. Same time and place, even more speakers and technology for evidence-based policymaking. Register here: www.eventbrite.co.uk/e/policyengi...
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PolicyEngine UK @uk.policyengine.org · 01/10/2025
Economic policy drinks tomorrow in London 🍺 Thursday 6-8pm at The Sherlock Holmes (Northumberland St, near Embankment) Light bites + first round on PolicyEngine. Come meet economists & policy analysts working on UK tax/benefits/public finance. luma.com/oz1qt2ec
luma.com
Economic policy happy hour · Luma
Drinks and discussion for the UK economic policy community. PolicyEngine is hosting an informal happy hour for economists, researchers, and policy analysts…
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PolicyEngine UK @uk.policyengine.org · 13/09/2025
📍 London | 25th September | 12:00-18:00 | Central Hall Westminster PolicyEngine 2.0 and the future of public policy analysis Join us for live demos, breakthrough research presentations, and networking with leaders shaping evidence-based policymaking. www.eventbrite.co.uk/e/policyengi...
eventbrite.co.uk
PolicyEngine 2.0 and the future of public policy analysis
Discover PolicyEngine's Latest Innovations in Evidence-Based Policy Analysis.
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PolicyEngine UK @uk.policyengine.org · 10/09/2025
We've built synthetic firm microdata calibrated to ONS and HMRC statistics to model these impacts. The analysis also shows how many businesses would enter or exit VAT at different thresholds. Full analysis: policyengine.org/uk/research/...
policyengine.org
How changing the VAT threshold affects UK revenues | PolicyEngine UK
PolicyEngine's new firm microsimulation model estimates revenue and business impacts of VAT thresholds from £70,000 to £120,000.
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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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Reposted by PolicyEngine UK
PolicyEngine US @us.policyengine.org · 22/08/2025
🎉 PolicyEngine has been awarded a $300,000 Phase I POSE grant from NSF (Award No. 2518372) to expand our open-source platform, build sustainable governance, and grow our contributor community! policyengine.org/us/research/nsf-po…
policyengine.org
National Science Foundation awards PolicyEngine $300,000 grant | PolicyEngine US
NSF's Pathways to Enable Open-Source Ecosystems program will support PolicyEngine's work to expand access to policy analysis tools.
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PolicyEngine UK @uk.policyengine.org · 25/04/2025
Our April webinar kicks off at 14:00! Join us to learn about our simulations of: - Spring Statement - Freezing income tax thresholds - Childcare subsidies Plus previews of our new interface and other upcoming features. Access it here: us06web.zoom.us/meeting/regi...
us06web.zoom.us
Welcome! You are invited to join a meeting: PolicyEngine UK monthly training webinar. After registering, you will receive a confirmation email about joining the meeting.
Join the PolicyEngine UK team to learn the basics of PolicyEngine usage, as well as new features and use cases.
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Reposted by PolicyEngine UK
PolicyEngine @policyengine.org · 22/04/2025
How do energy policies like carbon taxes, LIHEAP, or EV credits impact households? We recap PolicyEngine's open-source tools for analyzing these effects in the US & UK. Learn more in our latest post, featuring insights from the Open Sustainability Policy Summit: policyengine.org/us/research/...
policyengine.org
Analyzing Energy Policy with PolicyEngine | PolicyEngine US
We provide an Earth Day recap of our capabilities in the US and UK.
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PolicyEngine UK @uk.policyengine.org · 18/03/2025
📊 ANALYSIS: Following the Government’s announcement, we modeled a policy that would cut £5bn of PIP benefits for the less severely disabled claimants. This reform would increase poverty by 134,000 people. Explore the full analysis: policyengine.org/uk/research/...
policyengine.org
Restricting eligibility for the Personal Independence Payment Daily Living part | PolicyEngine UK
We simulate potential realisations of the Government's new £5 billion reform.
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PolicyEngine UK @uk.policyengine.org · 02/03/2025
Register for our next webinar for 18th March here: us06web.zoom.us/meeting/regi...
us06web.zoom.us
Welcome! You are invited to join a meeting: PolicyEngine UK monthly training webinar. After registering, you will receive a confirmation email about joining the meeting.
Join the PolicyEngine UK team to learn the basics of PolicyEngine usage, as well as new features and use cases.
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PolicyEngine UK @uk.policyengine.org · 02/03/2025
Missed our webinar last week? Watch the recording to preview our platform's simulations of tax and benefit reforms for local areas, and support for childcare subsidy modelling. www.youtube.com/watch?v=a-E_...
youtube.com
PolicyEngine UK Feb 2024 training: Local area modelling and childcare
YouTube video by PolicyEngine
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PolicyEngine UK @uk.policyengine.org · 21/01/2025
ICYMI: This morning's training covered our latest microsimulation features: 📊 Behavioural responses modelling 👶 Childcare subsidies implementation 🗺️ Local area analysis preview Thanks to all who joined live! Catch the recording here: youtu.be/HTZZLxEST3Q
youtu.be
PolicyEngine UK January 2025 Training
YouTube video by PolicyEngine
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PolicyEngine UK @uk.policyengine.org · 20/01/2025
📊 Join us tomorrow at 2 PM GMT for our monthly PolicyEngine UK training! We’ll present our microsimulation framework for modelling behavioural responses to policy changes and preview our implementation of UK childcare programmes in PolicyEngine. 🔗 Register here: us06web.zoom.us/meeting/regi...
us06web.zoom.us
Welcome! You are invited to join a meeting: PolicyEngine UK monthly training webinar. After registering, you will receive a confirmation email about joining the meeting.
Join the PolicyEngine UK team to learn the basics of PolicyEngine usage, as well as new features and use cases.
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PolicyEngine UK @uk.policyengine.org · 30/12/2024
From Budget analysis to election calculators, PolicyEngine's tools contributed crucial policy insights to inform the 2024 national conversation. Read our year in review to explore our impact and peek at what's coming in 2025 with our @nuffieldfoundation.org grant: policyengine.org/uk/research/...
policyengine.org
PolicyEngine UK in 2024: A year in review | PolicyEngine UK
From AI-powered analysis to election impact, we transformed policy research through technology.
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PolicyEngine UK @uk.policyengine.org · 26/12/2024
Making benefit calculations crystal clear for everyone. See how our AI-powered explanations help you understand your Universal Credit, National Insurance Contributions, and more. policyengine.org/uk/research/...
policyengine.org
New AI feature helps people understand their taxes and benefits | PolicyEngine UK
We’re applying large language models to clarify complex policy rules.
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PolicyEngine UK @uk.policyengine.org · 24/12/2024
Watch PolicyEngine's 2024 year in review! We analyzed major UK policy proposals including: - Spring Budget (£14.1bn tax cuts) - Party manifestos - Private school VAT - Employer NICs reforms Plus a preview of our local area modeling capabilities coming in 2025. 🎥 youtu.be/1JAjg_sBZSs
youtu.be
PolicyEngine UK Year in Review 2024
YouTube video by PolicyEngine
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Reposted by PolicyEngine UK
PolicyEngine @policyengine.org · 24/12/2024
The OECD's new report highlights how governments are translating regulations into executable code to make public services more consistent, transparent and efficient. This is exactly why we're building PolicyEngine! Read more: www.oecd.org/en/publicati...
oecd.org
Global Trends in Government Innovation 2024
Governments worldwide are transforming public services through innovative approaches that place people at the center of design and delivery. This report analyses nearly 800 case studies from 83 countr...
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PolicyEngine UK @uk.policyengine.org · 07/12/2024
ICYMI: Watch our November training session on modeling the Autumn Budget 2024 impacts 🎓 See how we analyze: - Employer NICs reforms - Capital Gains Tax changes - Private school VAT 🎥 Full webinar: youtu.be/LDTZhi62bak
youtu.be
PolicyEngine UK November 2024 Training
YouTube video by PolicyEngine
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PolicyEngine UK @uk.policyengine.org · 20/11/2024
At 2:00 pm GMT on November 25th @nikhilwoodruff.bsky.social and Vahid Ahmadi will review our analyses of Autumn Budget reforms, and also preview breakdowns by constituency which we'll launch in the coming months Register here: us06web.zoom.us/meeting/regi...
us06web.zoom.us
Welcome! You are invited to join a meeting: PolicyEngine UK Training - Autumn Budget Review Edition. After registering, you will receive a confirmation email about joining the meeting.
Join the PolicyEngine team for our monthly interactive training session on how to use the open source software platform to simulate tax and benefit reforms right from your browser. For the November s...
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