Minimum Alternate Tax

Also called: MAT · Topic: Taxation: Direct and Indirect Taxes, GST and Global Tax Issues · NCERT: Beyond NCERT

Meaning

Minimum Alternate Tax (MAT) is a minimum tax charged on a company's book profits, meaning the profits shown in its own accounts. It applies when the company's normal tax, worked out after all deductions, is lower than this minimum.

Formula: Tax payable = the higher of (a) normal tax on taxable income, or (b) MAT rate × book profits

MAT matters because some profitable companies use deductions to show nil taxable income, pay no tax, and still pay dividends (a share of profit paid to shareholders). MAT makes sure every such company pays at least some tax.

Explanation

Why MAT is needed: the "zero-tax company" problem

• A company keeps two sets of profit figures:
• Book profit: the profit in its accounts, which it reports to shareholders.

• Taxable income: the profit left after the tax law's deductions (amounts that may be subtracted before tax is worked out) and incentives.

• How a zero-tax company arises

• The company claims many deductions and exemptions.
• Its taxable income falls close to zero, so its normal tax is nil or very small.

• Its accounts still show a healthy profit, so it pays dividends.

• MAT closes this gap. It charges tax on the book profit, which deductions cannot shrink in the same way.

How MAT works: step by step

• Step 1: Work out normal tax on taxable income, after all deductions.
• Step 2: Work out MAT = MAT rate × book profit.
• Step 3: The company pays whichever is higher.
• MAT credit (the textbook idea): when a company pays MAT above its normal tax, the extra amount is recorded as a credit. In a later year, when its normal tax is higher than MAT, it can use this credit to lower its normal tax. So MAT was partly an advance tax, not only an extra cost.

Worked example (Budget 2026-27 rate of 14%) [2]

• Book profit = ₹100 crore
• Normal tax after deductions = ₹10 crore
• MAT = 14% × ₹100 crore = ₹14 crore
• ₹14 crore is higher than ₹10 crore → the company pays ₹14 crore
• At the old rate of 15%, MAT would have been ₹15 crore.

What makes MAT matter more or less

• More deductions in the law → bigger gap between book profit and taxable income → more companies fall under MAT.
• A higher MAT rate → MAT bites harder. The rate was 15% since 2019 and was cut to 14% in Budget 2026-27 [2].
• Companies that move to the concessional regime (Sec. 115BAA) → MAT does not apply to them. As more firms switch, fewer firms pay MAT.
• Limits on MAT credit → MAT becomes a final cost instead of an advance tax. This pushes firms to leave the old regime.

In India

• History: MAT was introduced in 1987. It sits in Sec. 115JB of the Income-tax Act, 1961.
• New law: The Income-tax Act 2025 came into force on 1 April 2026 and replaced the 1961 Act [1]. Exam questions still usually use the 1961 section numbers, such as 115JB.
• Rate:
• 15% since 2019.

• Budget 2026-27 cut MAT from 15% to 14% [2].

• MAT credit changes in Budget 2026-27 [2]:

• From 1 April 2026, no new MAT credit can build up [2].

• Old MAT credit can reduce tax only up to 25% of the tax owed under the new regime [2].

• Link with the 2019 corporate tax cut:

• Under Sec. 115BAA, an existing domestic company may choose a 22% rate (effective rate ≈ 25.17%) if it gives up all incentives and deductions [3]. This option applies with effect from 1 April 2020 [3].

• MAT is not levied on companies taxed under Sec. 115BAA. They claim no deductions, so there is no gap for MAT to close.

• Direction of policy: A lower MAT rate, no new credit and a cap on old credit together nudge companies away from the old "high rate + many deductions + MAT" system. They move toward the "low rate, no deductions" regime.

Don't confuse with

• Normal corporate tax: this is charged on taxable income, after deductions, at a proportional rate. MAT is charged on book profit and is only a floor. It applies only when normal tax falls below it.
• Sec. 115BAA concessional rate (22%): this is an optional regime with no deductions [3], and MAT does not apply to it. MAT belongs to the old regime, where companies still claim deductions.
• Global minimum tax (Pillar Two, 15%): this is an international agreement that sets a floor on the effective tax rate of large multinational groups across countries. MAT is India's domestic floor on book profits under Sec. 115JB.
• Book profit vs taxable income: book profit comes from the company's accounts. Taxable income comes from the tax law after deductions. MAT uses book profit.

Prelims Hooks

• MAT was introduced in 1987 and sits in Sec. 115JB (1961 Act). It targets "zero-tax" companies that show nil taxable income but pay dividends.
• MAT is charged on book profits, not on taxable income. The company pays the higher of normal tax and MAT.
• MAT rate: 15% since 2019 → cut to 14% in Budget 2026-27 [2].
• From 1 April 2026, no new MAT credit builds up. Old credit can offset only up to 25% of tax under the new regime [2].
• Trap: MAT is not levied on companies that choose Sec. 115BAA (22%, no exemptions). 115BAB = 15% for new manufacturing companies, which is a different provision.
• Trap: MAT is a direct tax (the company bears it and cannot pass it on) and part of tax revenue receipts. It is not an indirect tax.

Mains Points

• Fairness vs incentives
• MAT makes sure profitable companies pay some tax even when they use many deductions. This protects revenue and the fairness of the tax system.

• But it also takes away part of the benefit of the incentives the government itself offers, such as deductions meant to encourage investment. The two policies pull in opposite directions.

• Toward "low rate, wide base"

• The 22% option without exemptions (115BAA) [3], plus a MAT that is being slowly phased down (14%, no new credit) [2], move India toward simple, low corporate rates with few deductions.

• This means less litigation, fewer disputes over deductions, and a clearer signal to investors.

• Global limits on how low rates can go

• As India lowers domestic floors such as MAT, the global minimum tax (Pillar Two, 15%) still sets a floor on effective rates for large multinationals.
• India's corporate tax design has to balance attracting investment against these global rules and its own need for revenue.

Related concepts

• Income tax
• Corporate tax
• Capital gains tax
• Securities Transaction Tax
• Angel tax
• Wealth tax and inheritance tax
• Paper taxes
• Tax deducted at source
• Faceless assessment

Read more

• Direct taxes in India