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
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
December 10, 2025 at 4:26 AM
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
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
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
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
December 2, 2025 at 8:49 PM
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
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
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/...
Read our new report for more on the revenue and distributional implications: www.policyengine.org/uk/research/...
November 28, 2025 at 5:09 AM
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/...
Read our new report for more on the revenue and distributional implications: www.policyengine.org/uk/research/...
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.
We modelled four behavioural scenarios to show how revenue and distributional impacts vary.
November 28, 2025 at 4:50 AM
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.
We modelled four behavioural scenarios to show how revenue and distributional impacts vary.
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/...
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/...
November 27, 2025 at 1:38 AM
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/...
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/...
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/...
policyengine.org/uk/research/...
November 27, 2025 at 1:18 AM
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/...
policyengine.org/uk/research/...
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/...
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/...
November 26, 2025 at 9:20 PM
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/...
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/...
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.
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.
Chancellor Reeves delivers the Autumn Budget at 12:30 PM.
Here's our analysis of 4 policies the government may announce:
🧵👇
Here's our analysis of 4 policies the government may announce:
🧵👇
November 26, 2025 at 2:12 PM
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.
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.
Chancellor Reeves delivers the Autumn Budget at 12:30 PM.
Here's our analysis of 4 policies the government may announce:
🧵👇
Here's our analysis of 4 policies the government may announce:
🧵👇
November 26, 2025 at 12:17 PM
Chancellor Reeves delivers the Autumn Budget at 12:30 PM.
Here's our analysis of 4 policies the government may announce:
🧵👇
Here's our analysis of 4 policies the government may announce:
🧵👇
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
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
November 26, 2025 at 2:56 AM
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
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
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/...
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
Free, open-source tools to understand tax and benefit policies. Calculate your taxes and benefits, or analyze policy reforms.
www.policyengine.org
November 25, 2025 at 8:29 PM
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/...
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/...
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 👇
Excited to welcome researchers and policymakers for a day of demos, applications, and discussions.
Here's what we have planned 👇
November 3, 2025 at 9:23 AM
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 👇
Excited to welcome researchers and policymakers for a day of demos, applications, and discussions.
Here's what we have planned 👇
Reposted by PolicyEngine UK
BREAKING: PolicyEngine's microsimulation model projects a surge in candy consumption in the coming hours.
Happy Halloween! 🎃
Happy Halloween! 🎃
October 31, 2025 at 10:34 PM
BREAKING: PolicyEngine's microsimulation model projects a surge in candy consumption in the coming hours.
Happy Halloween! 🎃
Happy Halloween! 🎃
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
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
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…
luma.com
October 1, 2025 at 5:06 PM
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
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
📍 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...
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...
PolicyEngine 2.0 and the future of public policy analysis
Discover PolicyEngine's Latest Innovations in Evidence-Based Policy Analysis.
www.eventbrite.co.uk
September 13, 2025 at 11:18 AM
📍 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...
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...
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.
Our new firm microsimulation model shows:
• £70k threshold: +£640m revenue
• £100k threshold: -£370m revenue
• £120k threshold: -£1.1bn revenue
All estimates for 2026-27.
September 10, 2025 at 2:02 AM
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.
Our new firm microsimulation model shows:
• £70k threshold: +£640m revenue
• £100k threshold: -£370m revenue
• £120k threshold: -£1.1bn revenue
All estimates for 2026-27.
Reposted by PolicyEngine UK
🎉 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! https://policyengine.org/us/research/nsf-pose-phase-1-grant
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.
policyengine.org
August 22, 2025 at 2:37 AM
🎉 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! https://policyengine.org/us/research/nsf-pose-phase-1-grant
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...
- 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...
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.
us06web.zoom.us
April 25, 2025 at 12:54 PM
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...
- 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...
Reposted by PolicyEngine UK
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/...
Learn more in our latest post, featuring insights from the Open Sustainability Policy Summit:
policyengine.org/us/research/...
Analyzing Energy Policy with PolicyEngine | PolicyEngine US
We provide an Earth Day recap of our capabilities in the US and UK.
policyengine.org
April 22, 2025 at 8:43 PM
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/...
Learn more in our latest post, featuring insights from the Open Sustainability Policy Summit:
policyengine.org/us/research/...
📊 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/...
Explore the full analysis: policyengine.org/uk/research/...
Restricting eligibility for the Personal Independence Payment Daily Living part | PolicyEngine UK
We simulate potential realisations of the Government's new £5 billion reform.
policyengine.org
March 18, 2025 at 2:33 PM
📊 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/...
Explore the full analysis: policyengine.org/uk/research/...
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_...
PolicyEngine UK Feb 2024 training: Local area modelling and childcare
YouTube video by PolicyEngine
www.youtube.com
March 2, 2025 at 4:11 AM
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_...
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
📊 Behavioural responses modelling
👶 Childcare subsidies implementation
🗺️ Local area analysis preview
Thanks to all who joined live! Catch the recording here:
youtu.be/HTZZLxEST3Q
PolicyEngine UK January 2025 Training
YouTube video by PolicyEngine
youtu.be
January 21, 2025 at 3:11 PM
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
📊 Behavioural responses modelling
👶 Childcare subsidies implementation
🗺️ Local area analysis preview
Thanks to all who joined live! Catch the recording here:
youtu.be/HTZZLxEST3Q
📊 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...
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...
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.
us06web.zoom.us
January 20, 2025 at 5:24 PM
📊 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...
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...