UK Fiscal Sandbox

Quick Presets

Policy Levers

National Insurance

Abolish employee NI

Employment tax (%) Employer-side. 0 = abolish, current = 15%

Income Tax

Basic (%) Now: 20%

Higher (%) Now: 40%

Additional (%) Now: 45%

Remove PA taper (£100k-£125k "60% band")

VAT

Rate change (pp) e.g. -2.5

Base multiplier >1 = broader

Capital Gains

Equalise with income tax

Allowance (£k)

Real gain margin (%)

Corporation Tax

Rate (%) Now: 25%

Allowance factor

Other

Property progressivity

Energy levy cut (%)

Spending

Cut (% of GDP) e.g. 3 = £78bn cut

Behavioural

Apply ETI/Laffer responses

Results

Revenue

Deficit

Revenue by Head

Tax	£bn

Total

Summary

Revenue (Reform)

Spending (Reform)

Deficit (Baseline)

Deficit (Reform)

Distributional Impact

Avg. change (static):

Static incidence: assumes no behavioural change. Click for details.

Quick Presets i

Policy Levers

National Insurance i

Income Tax i

VAT i

Capital Gains i

Corporation Tax i

Other i

Spending i

Behavioural i

Results i