IF I WERE
CHANCELLOR

BUDGET ANSWERS · PUBLIC SERVICES

What would 10% more NHS funding cost?

Short answer: About £24.4bn a year in extra spending, before anyone changes their behaviour. After five years, the government is borrowing £37.6bn a year more than if nothing had changed, because the economy and debt interest respond too.

The direct cost

We tested raising day-to-day NHS funding 10% above its planned path in the first Budget and kept it for the whole term. On paper that costs about £24.4bn a year. Extra money needs staff and equipment, so gains arrive slowly and each extra point does a bit less. Cuts bite faster and harder. Better access helps some people back into work. Your pay settlement is a separate commitment.

After five years

Direct costings stop at the first year. The game keeps going: prices, jobs, pay, interest rates and debt interest all respond, and some of the money comes back or leaks away.

Year 5, the election year
MeasureWith the changeNo changeDifference
Annual borrowing£96.6bn£59.0bn+£37.6bn
Debt as a share of the economy98.6%95.1%+3.6 pts
Household living standards (index, 100 = today)101.21101.35−0.14
NHS access (index, 100 = today)106.2100.0+6.2

Ten years on

Ten years on, the model does not judge the country better off than if nothing had changed: any gains were bought on credit, leaving debt higher than if nothing had changed.

Year 10, holding the same policy
MeasureWith the changeNo changeDifference
Household living standards102.71102.85−0.14
NHS access106.8100.0+6.8
Housing, transport, justice and schools99.7100.0−0.3
Military readiness100.0100.00.0
Size of the economy100.02100.00+0.02
Debt as a share of the economy96.1%87.5%+8.7 pts

Would voters thank you?

Popularity and results are different tests. Here is how each of the game’s three publics would vote with only this change made.

Support at the election, with 50% needed to win
PublicWith the changeNo change
Services & support56.6%52.0%
Lower taxes55.0%52.0%
Mind the books54.0%52.0%

How this was worked out

These figures come from the game’s simplified model, anchored to OBR March 2026 fiscal totals, with no external shocks and every other policy left as inherited. They are illustrative, not an official costing. Real outcomes depend on the wider economy and the choices made alongside. Read the model register for sources and assumptions.

In the game you make five Budgets, face a shuffled deck of world events, and are judged twice: by voters on election night and by the country ten years later.

Try it in the game

More budget answers