Progressive taxation

Topic: Taxation: Direct and Indirect Taxes, GST and Global Tax Issues · NCERT: Class 12, Ch 5 "Government Budget and the Economy"

Meaning

A progressive tax is a tax in which the rate goes up as income goes up. So a richer person pays not just more rupees, but a larger share of their income as tax.

• It matters because Class 12, Government Budget and the Economy calls progressive taxation the government's main tool for redistribution (moving income from the rich to the poor).
• In India, the income-tax slabs are the main example.
• Simple test: tax paid ÷ income (the average tax rate) rises as income rises.

Explanation

How it works: slabs, marginal rate and average rate

• Income is split into slabs (bands of income). Each higher slab has a higher rate.
• Marginal tax rate: the rate on the last (extra) rupee earned. This is the rate of the highest slab you reach.
• Average tax rate: total tax ÷ total income.
• In a progressive tax, the marginal rate is higher than the average rate, and the average rate climbs as income rises.
• A common myth
• Moving into a higher slab does not mean all your income is taxed at the higher rate.
• Only the part of income inside that slab pays the higher rate.

Worked example (imaginary slabs, not India's actual rates)

• Slabs: first ₹3 lakh at 0%. Next ₹3 lakh (₹3–6 lakh) at 10%. Above ₹6 lakh at 20%.

Person	Income (₹)	Tax worked out	Total tax (₹)	Average rate	Marginal rate
A	5,00,000	2,00,000 × 10%	20,000	4%	10%
B	10,00,000	3,00,000 × 10% + 4,00,000 × 20%	1,10,000	11%	20%

• B earns 2 times as much as A but pays 5.5 times as much tax.
• B's average rate (11%) is higher than A's (4%). That is what makes the tax progressive.

Why it is used: equity and redistribution

• Canon of equity (Adam Smith, Wealth of Nations, 1776): people should pay according to their ability to pay.
• A rich person can give up one rupee more easily than a poor person.

• So asking the rich to pay a bigger share is seen as fair.

• Redistribution

• Higher taxes on the rich → more revenue for the state → spending on schools, health and welfare for the poor → the gap between rich and poor gets smaller.

• It works best with a direct tax. In a direct tax, impact (who the law makes pay) and incidence (who finally bears the burden) fall on the same person. So the burden cannot be passed on through prices.

• Indirect taxes are charged on goods, at the same rate for rich and poor buyers. So they are hard to make progressive.

Elasticity and automatic stabilisation

• Elasticity (a canon added by later writers): revenue should rise on its own as income rises, without new laws.
• A progressive income tax is naturally elastic. As incomes grow, people move into higher slabs and pay a larger share.

• Worked example from the note: if GDP grows 10% and tax revenue grows 12%, revenue is growing faster than income, so the tax system is elastic.

• Automatic stabiliser (something that calms the business cycle without any new government decision):

• In a boom: incomes rise → people move into higher slabs → tax rises faster than income → people have less extra money to spend → the boom cools.

• In a slump: incomes fall → tax falls faster than income → people keep more of what they earn → the fall in demand is smaller.

• Link to the multiplier (how many rupees of output each extra rupee of spending creates):

• Under a proportional tax T = tY, the multiplier = 1 / [1 − c(1 − t)]. Here c is the MPC (the share of each extra rupee that people spend) and t is the tax rate.
• NCERT example: c = 0.8, t = 0.25 → multiplier = 2.5. With a lump-sum tax (a fixed amount, not linked to income), it is 5.
• A progressive tax takes an even bigger share of each extra rupee as income rises. So it cuts the multiplier and dampens the business cycle at least as strongly as a proportional tax.

In India

• Main example: the personal income-tax slabs. Higher income, higher rate. This is the Indian example of Smith's canon of equity.
• Legal basis
• Article 265: "No tax shall be levied or collected except by authority of law." [2]

• Slab rates and due dates are fixed each year in the Finance Act, passed by Parliament. This also meets the canon of certainty.

• Collection: TDS (tax deducted at source) is cut from salary before it is paid. This meets the canon of convenience and keeps collection cheap (economy).

• Latest figures
• Personal income tax including STT (Securities Transaction Tax), FY 2024-25, up to 17 June 2024 (provisional): ₹2,88,993 crore, out of net direct taxes of ₹5,15,986 crore. [3]

• Union Budget 2025-26 (Budget Estimates): taxes on income are budgeted to grow 14.4%, faster than gross tax revenue (10.8%). [4]

  • This faster growth fits the idea that a progressive income tax is elastic.

• The limit: India still gets a large part of its revenue from indirect taxes. These are generally regressive. GST alone is budgeted at ₹11,78,000 crore and total indirect taxes at ₹17,35,100 crore (BE 2025-26). [4]

• So the tax system as a whole is less progressive than the income-tax slabs alone suggest.

Don't confuse with

• Proportional tax: one flat rate at every income level, so the average rate stays the same (e.g. corporation tax taken as a fixed share of profits). In a progressive tax, the average rate rises with income.
• Regressive tax: takes a larger share of income from the poor. Example: a poll tax (the same amount per head). A uniform consumption tax is also regressive. With 10% GST, a poor household earning ₹10,000 pays 10% of its income, while a rich household earning ₹1,00,000 pays only 6%.
• Direct tax: this is about who bears the burden (it cannot be shifted). Progressive is about how the rate changes with income. A direct tax can be progressive (income tax) but need not be (corporation tax is proportional).
• Ad valorem tax: a percentage of the price of a good (e.g. 18% GST). The rate is the same whoever buys the good, so it is not progressive, even though the rupee amount of tax rises with price.

Prelims Hooks

• Progressive tax = the average tax rate rises with income. In such a system, the marginal rate is higher than the average rate.
• India's income-tax slabs are progressive. Corporation tax (a fixed share of profits) is the textbook proportional tax. A poll tax is the textbook regressive tax.
• Class 12, Government Budget and the Economy: progressive taxation is the government's main tool for redistribution.
• Progressive taxation reflects Smith's canon of equity (ability to pay). Its built-in revenue growth reflects elasticity, which was added by later writers and is not one of Smith's four canons.
• Trap: indirect taxes are regressive not because they "impact all income groups equally" (NCERT's wording). The real reason is that an equal rate on consumption takes a larger share of a poor household's income, because the poor spend almost all they earn.
• Income-linked taxes lower the multiplier. With c = 0.8 and t = 0.25, the multiplier is 2.5, against 5 under a lump-sum tax. This makes them automatic stabilisers.

Mains Points

• Equity vs ease of collection
• Indirect taxes like GST are easy to collect (₹11,78,000 crore, BE 2025-26) but take a larger share of poor households' incomes. [4]
• Moving the tax mix towards progressive direct taxes serves equity and elasticity. Taxing consumption serves convenience and economy.

• Very high top rates can also push people to hide income. So a wider base, with more people paying tax, is often better than steeper slabs.

• Built-in fiscal stabiliser

• A progressive income tax takes more in booms and less in slumps, with no new law needed.

• This supports counter-cyclical fiscal policy (policy that works against the business cycle). It also makes revenue grow faster than GDP; for example, taxes on income are budgeted to grow 14.4% in BE 2025-26. [4]

• Widening the base, not just raising rates

• Redistribution through income tax works only if incomes are actually reported.
• Tools like TDS, GST invoice-matching (which leaves a record of business income) and simpler slabs bring more earners into the net. They also keep the canon of certainty that Article 265 protects. [2]

Related concepts

• Taxes
• Direct tax
• Indirect tax
• Ad valorem and specific tax
• Proportional tax
• Regressive tax

Read more

• Taxes: meaning, canons and classification