Tools
Fiscal tools for UK politics
Two interactive tools grounded in the same underlying data: model your own policy trade-offs, or explore where every pound of Treasury spend and tax actually goes.
Simulator
Build your own fiscal package. Pull sliders on tax and spend, see the live impact on the deficit, debt and departmental budgets — with each lever tied back to real policy positions.
- Adjust income tax, VAT, NI, corporation tax and more
- Live deficit and debt-to-GDP readout
- Compare your scenario against party manifestos
Open Simulator
Budget
The full UK Treasury budget, broken down by department and by tax source. See year-on-year changes, receipts vs spend and the gap that has to be borrowed.
- Every major department with £bn spend and change
- Every tax source with £bn receipts
- Total spend vs receipts vs GDP
Open Budget