Supply-side policy measures: lower direct taxes

📈 Government and the Macro‑economy – Supply‑Side Policy

What are Direct Taxes?

Direct taxes are taxes that are paid directly by an individual or business to the government. The most common examples are income tax and corporate tax. Think of them as a “ticket” you pay before you can use the public “road” of the economy.

Why Lower Direct Taxes?

Lowering direct taxes can boost the supply side of the economy in several ways:

1. Increased disposable income – People keep more of what they earn, so they can spend or invest more.
2. Higher incentives to work and invest – When the return on effort or capital is higher, people are more likely to work harder or start new businesses.
3. Greater savings and investment – With more after‑tax money, households and firms can save and lend, which fuels future production.

How Does a Tax Cut Affect Supply?

When the government reduces the tax rate, the effective return on labour and capital increases. In economics we write this as:

\$\$

\text{After‑tax return} = \text{Pre‑tax return} \times (1 - \text{tax rate})

\$\$

If the tax rate falls from 20 % to 10 %, the after‑tax return rises from 80 % to 90 % of the pre‑tax return, encouraging more production.

Example: Income Tax Cut for 15‑Year‑Olds

Imagine a part‑time job that pays £10 per hour. If the income tax is 20 %, you keep £8.00. If the tax drops to 10 %, you keep £9.00. That extra £1.00 per hour can be used to buy a new video game, save for a future gadget, or invest in a small side‑business like a lemonade stand. The extra money encourages you to work more hours or start a new venture, which adds to the overall supply of goods and services.

Potential Drawbacks

• Reduced government revenue – Less money for schools, hospitals, and roads.
• Risk of inequality – Higher‑earning individuals may benefit more than low‑income earners.
• Short‑term vs long‑term effects – Immediate boost may fade if not paired with other policies.

Tax Bracket Table (Illustrative)

Key Takeaway

Lowering direct taxes can act like a “fuel boost” for the economy, encouraging people to work harder, invest more, and create new businesses. However, it must be balanced with the need for public services and fairness. Think of it as adding extra gas to a car: it goes faster, but you still need to refuel and maintain the engine.