What is the difference between a progressive and a regressive tax

• →A progressive tax is one where the average tax rate increases as the taxpayer's income increases, meaning higher earners contribute a larger share of their income in tax.
• →Income tax in the United Kingdom operates on this basis: a basic-rate taxpayer pays 20% on earnings above the personal allowance, while an additional-rate taxpayer pays 45% on earnings above £125,140.
• →In this case the tax burden falls more heavily on those with greater ability to pay. As a result, progressive taxes reduce post-tax income inequality by compressing the gap between high and low earners.
• →A regressive tax, by contrast, takes a larger proportion of income from lower earners than from higher earners.
• →Value Added Tax (VAT) illustrates this clearly: a household spending £200 on VAT-liable goods pays the same absolute amount whether it earns £15,000 or £150,000 per year, but that sum represents a far larger share of the lower-income household's budget.
• →While both tax types raise government revenue, they have opposing distributional consequences, with progressive taxes narrowing inequality and regressive taxes widening it.

• →Average tax rate vs. marginal tax rate. The distinction between progressive and regressive turns on the average rate (total tax paid as a percentage of total income), not the marginal rate. As income rises, a progressive tax sees the average rate rise; a regressive tax sees it fall.
• →Proportional (flat) taxes sit between the two extremes, taking the same percentage of income at all levels. Recognising all three categories — progressive, proportional, and regressive — and being able to classify any given tax correctly is essential.
• →Direct vs. indirect taxes and their distributional effects. Direct taxes such as income tax and National Insurance are typically progressive or at least proportional. Indirect taxes such as VAT, fuel duty, and tobacco duty tend to be regressive because lower-income households spend a higher proportion of their income on consumption.
• →Real-world classification requires care. National Insurance contributions have historically become regressive above the upper earnings limit, where the rate falls. Council tax is widely regarded as regressive because bands are based on 1991 property values and bear little relation to current income.
• →Equity and efficiency trade-off. Progressive taxation is associated with vertical equity (those with greater ability to pay contribute more), but very high marginal rates may reduce incentives to work or invest, creating a tension between distributional goals and allocative efficiency.

• →This topic assesses understanding of the distributional effects of different tax structures and the criteria by which taxes can be classified.
• →It draws directly on Edexcel spec point 4.5.2.a, which addresses the design and impact of taxation, and on AQA spec point 4.2.5.1 — Fiscal policy, which requires knowledge of the instruments of fiscal policy including the structure of the tax system.
• →Students are expected to move beyond simple definitions and demonstrate how a tax's progressivity or regressivity shapes its economic and social consequences, particularly in relation to income inequality and government revenue-raising objectives.

Examined 3 times across AQA and Edexcel since 2022.

The concept has appeared on both boards, with AQA testing it through identification tasks and Edexcel requiring extended explanation.

• →Fiscal and Supply-Side Policies (Advanced) — progressive and regressive taxation is a core component of fiscal policy design, and understanding the tax structure is necessary for evaluating how governments use fiscal tools to influence income distribution and macroeconomic outcomes.