The government budget
Government budget: a financial plan setting out a government's planned spending and its expected revenue, mainly from taxation, over a period such as a year.
Two sides of the budget
- One side records government revenue, which comes mainly from taxation such as income tax and VAT.
- The other side records government spending on items such as public services, welfare and investment.
- The budget is the plan that brings these two sides together for the year ahead.
- The budget is the central instrument of fiscal policy.
- By choosing how much to tax and spend, a government also chooses how much to inject into or withdraw from the circular flow.
The budget balance
- The budget balance is government revenue − government spending over the period.
- A balanced budget occurs when revenue equals spending, so the balance is 0.
- A budget surplus occurs when revenue exceeds spending, and a budget deficit when spending exceeds revenue.
- Suppose a government plans revenue of £500 billion and spending of £550 billion.
- So 500 − 550 = −50: a budget deficit of £50 billion.
- If revenue were £560 billion instead, 560 − 550 = +10: a budget surplus of £10 billion.
Why the budget matters
- The budget lets a government manage aggregate demand through fiscal policy.
- It funds public services and can redistribute income through taxes and transfers.
- A persistent deficit must be financed by borrowing, which adds to the national debt.
- State the budget balance as revenue − spending before judging surplus or deficit.
- A positive figure is a surplus and a negative figure is a deficit.
- Name taxation as the main source of revenue rather than borrowing.
- Do not confuse the budget balance with the national debt.
- The balance is a yearly flow, while the national debt is the stock of borrowing built up over many years.
- What is a government budget?
- What are the two sides of the budget?
- How is the budget balance calculated?
- If revenue is £400 billion and spending is £420 billion, is the budget in surplus or deficit, and by how much?
