Progressive and Regressive Taxes Revision Notes | GCSE AQA Economics

1. Why Tax Structure Matters

Two workers. One earns £20,000 a year; the other earns £80,000. They both pay tax — but who carries the heavier burden relative to their income? That question sits at the heart of progressive and regressive taxation, and it comes up repeatedly in AQA Paper 2.

Governments collect taxes to fund public services, redistribute income, and manage the economy. The structure of a tax — not just its rate — determines who bears the real cost. Understanding that structure is what this lesson is about.

2. Progressive Taxation

Think about how a progressive tax works by starting with a concrete anchor. Imagine a sliding scale: the more you earn, the steeper the climb. That is the core idea behind a progressive tax — as income rises, the proportion of income paid in tax also rises.

Income tax in the UK is the clearest example. In 2024–25, the first £12,570 of earnings is tax-free (the personal allowance). Earnings between £12,571 and £50,270 are taxed at 20% (the basic rate). Earnings above £50,270 are taxed at 40% (the higher rate). There is also an additional rate of 45% on earnings above £125,140, though this affects only the highest earners. The key point is not the rate itself — it is that the average tax rate (total tax paid as a proportion of total income) rises as income rises.

Worked example: Calculating Average Tax Rate to Confirm a Tax is Progressive

Priya earns £20,000 and pays £1,486 in income tax. Mohammed earns £60,000 and pays £11,432 in income tax. Show that income tax is progressive for these two earners.

1. Average tax rate = (Tax paid ÷ Income) × 100 = (£1,486 ÷ £20,000) × 100 — We divide total tax paid by total income to find the proportion paid in tax.
2. £1,486 ÷ £20,000 = 0.0743 → 0.0743 × 100 = 7.43% — Priya pays 7.43% of her income in income tax.
3. Average tax rate = (£11,432 ÷ £60,000) × 100 — Same method applied to Mohammed's figures.
4. £11,432 ÷ £60,000 = 0.1905 → 0.1905 × 100 = 19.05% — Mohammed pays 19.05% of his income in income tax.
5. Priya: 7.43% | Mohammed: 19.05% — Mohammed's average tax rate is higher than Priya's, even though they pay the same rates on the same bands. The average rate rises with income — confirming this is a progressive tax.

Answer: Priya's average tax rate is 7.43%; Mohammed's is 19.05%. Because the average tax rate rises with income, income tax is progressive.

Notice the logic: it is the proportion of income paid that matters, not the absolute amount. Mohammed pays more pounds in tax, but that alone does not make a tax progressive. What confirms it is that his average tax rate is higher. Keep that distinction sharp — examiners test it directly.

The distributional effect of a progressive tax is significant. Because higher earners contribute a larger share of their income, progressive taxes tend to reduce income inequality. The government collects more from those with greater ability to pay, which can then fund transfers and public services that benefit lower-income households.

3. Regressive Taxation

Now flip the logic. A regressive tax works in the opposite direction — as income rises, the proportion of income paid in tax falls. Lower earners end up carrying a heavier burden relative to their income, even if they pay less in absolute terms.

Value Added Tax (VAT) is the most commonly cited example in AQA Economics. VAT is charged at a flat rate (20% on most goods) regardless of the buyer's income. If Aisha earns £15,000 and spends £3,000 on VAT-able goods, she pays £600 in VAT — that is 4% of her income. If Ben earns £90,000 and spends the same £3,000 on VAT-able goods, he also pays £600 in VAT — but that is only 0.67% of his income.

Worked example: Showing That VAT is Regressive

Aisha earns £15,000 and pays £600 in VAT. Ben earns £90,000 and pays £600 in VAT. Show that VAT is regressive.

1. Average tax rate = (£600 ÷ £15,000) × 100 — Divide VAT paid by total income, then multiply by 100 to get a percentage.
2. £600 ÷ £15,000 = 0.04 → 0.04 × 100 = 4% — Aisha pays 4% of her income in VAT.
3. Average tax rate = (£600 ÷ £90,000) × 100 — Same method applied to Ben's figures.
4. £600 ÷ £90,000 = 0.00667 → 0.00667 × 100 = 0.67% — Ben pays 0.67% of his income in VAT.
5. Aisha: 4% | Ben: 0.67% — The average tax rate falls as income rises. Both pay the same absolute amount, but VAT takes a far larger proportion of Aisha's income — confirming VAT is regressive.

Answer: Aisha's average VAT rate is 4%; Ben's is 0.67%. Because the average tax rate falls as income rises, VAT is regressive.

The reason VAT is regressive connects to spending patterns. Lower-income households tend to spend a higher proportion of their income on goods and services, so a flat-rate consumption tax takes a bigger bite from their budget. Higher earners save or invest a larger share of their income, which is not subject to VAT.

4. Comparing Progressive and Regressive Taxes

Now that both concepts are clear, it helps to see them side by side. The table below summarises the key differences — this is exactly the kind of comparison an examiner might ask you to make.

Notice that fuel duty — a fixed amount per litre of fuel — is also regressive. A lower-income worker who drives to work pays the same duty per litre as a high-earning executive, but that duty represents a much larger share of the worker's income. The pattern is consistent: any flat-rate tax on spending or goods tends to be regressive.

5. Why Some Taxes Are Progressive and Others Regressive

The structure of a tax — how it is designed — determines whether it ends up progressive or regressive. Taxes based directly on income can be designed with rising rates, making them progressive. Taxes based on spending or fixed amounts per unit tend to be regressive, because spending as a proportion of income is higher for lower earners.

This is a crucial specification point: the AQA course requires you to recognise that some taxes are progressive and others are regressive, and to be able to explain why. The 'why' always comes back to how the average tax rate changes as income changes.

It is worth noting that a government's overall tax system is usually a mix of both types. The UK government raises revenue through progressive income tax, but also through regressive VAT and fuel duty. National Insurance has some progressive features but also a reduced rate above the upper earnings limit: the main employee rate is 8% on earnings up to the upper earnings limit (reduced from 12% in 2023–24), dropping to just 2% above it. This means NI becomes less proportionally burdensome at higher incomes, giving it a regressive character at the top of the earnings distribution. The net distributional effect depends on the balance between all these taxes — and on how the revenue is spent.

6. Fairness and Evaluation

Earlier, we established how each tax type works. Now the question shifts: which is fairer? This is where evaluation comes in, and it is the kind of reasoning that earns marks in the upper levels of AQA mark schemes.

7. Exam Technique and Common Mistakes

The most common error on this topic is confusing the absolute amount of tax paid with the proportion of income paid. A regressive tax does not mean lower earners pay more pounds — it means they pay a higher percentage of their income. Always anchor your answer to the average tax rate.

To tie this lesson together: the distinction between progressive and regressive taxes always comes back to one question — does the proportion of income paid in tax rise or fall as income increases? Answer that question clearly, support it with an average tax rate calculation or comparison, and you have the foundation for a full-marks response on this topic.