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| TL;DR Summary: |
| MAT makes sure profitable companies pay at least some tax. The rate is 15% of book profit, set to drop to 14% from April 2026. Book profit starts with your net profit as per the Companies Act accounts. You pay MAT or normal tax, whichever is higher. Companies that opt for Section 115BAA or 115BAB are fully exempt from MAT.MAT credit can be carried forward for up to 15 years. From April 2026, no new MAT credits will be generated. Existing credits can still be used, but only up to 25% of your tax liability each year. Don’t miss adjustments like reserves, depreciation, or deferred tax; they change your book profit. |
Minimum Alternate Tax or MAT determines what a profitable Indian company pays even after claiming every deduction the law allows. It exists so that a business showing strong book profits cannot reduce its tax outgo to nearly zero through exemptions alone.
In this blog, we break down all you must know about MAT. We cover the current MAT rate and book profit calculation, which companies are exempt, how MAT interacts with tax regimes, credit carry-forward rules and adjustments businesses commonly miss.
What is MAT and Why it Exists
Minimum Alternate Tax applies to companies that report healthy profits in their books but end up with little or no tax liability under normal provisions, because of deductions and exemptions permitted under the Income Tax Act.
The main objective of MAT is to prevent aggressive tax planning that reduces taxable income to near zero while book profits remain high.
It levels the playing field. Companies that cannot access certain deductions or operate in non-incentivised sectors do not face an unfair disadvantage against companies that can.
MAT under Section 115JB generally applies to companies, including domestic companies and many foreign companies with a taxable nexus in India, subject to statutory exceptions.
Section 8 companies are not automatically exempt merely because they are non-profit entities. MAT is not attracted where the company’s MAT computation results in no liability, but exemption from MAT may also arise from specific statutory carve-outs, especially for certain foreign companies
MAT was first introduced by the Finance Act, 1987 through Section 115J, withdrawn later, and reintroduced in 1996.
Under the current law, Section 115JB requires a company to compare tax under the normal provisions with MAT computed on book profit, and pay the higher amount. MAT is a minimum tax mechanism, not an additional separate levy. It ensures that even if you claim every deduction available, you still pay a baseline amount.
Current MAT Rate and Book Profit Calculation
The current MAT rate is 15% of book profit, plus applicable surcharge and cess. This rate has been effective from Assessment Year 2020-21 (FY 2019-20). Prior to that, it was 18.5%.
However, the Finance Bill 2026 proposes a significant change.
From April 1, 2026, the MAT rate will reduce to 14% for both domestic and foreign companies.
A company that operates as a unit in an International Financial Services Centre and earns its income solely in convertible foreign exchange pays MAT at 9% of book profit, plus surcharge and cess.
Surcharge on the MAT amount follows the standard corporate surcharge structure. Surcharge is usually levied at
- 7% on the income tax amount if net income exceeds Rs. 1 crore but does not exceed Rs. 10 crore
- 12% if net income exceeds Rs. 10 crore. Health and education cess of 4% applies on the tax plus surcharge amount.
Marginal relief provisions soften the impact where income crosses these thresholds by a small margin, so your effective MAT rate depends on where your book profit lands relative to these limits, not on a flat 15% alone.
Health and Education Cess is levied at 4% on the aggregate of tax and surcharge.
Now, the calculation.
MAT is computed on “book profit,” not taxable income. Book profit is defined in Explanation 1 to Section 115JB.
The starting point: Net profit as per your profit and loss account prepared under the Companies Act, 2013 (Schedule III).
From there, you make additions and deductions as prescribed.
Additions to net profit include (if debited to P&L):
- Income tax paid or payable, if debited to the profit and loss account
- Amounts carried to any reserves, other than certain specified reserves
- Expenditure related to income exempt under Section 10, with specific carve-outs
- Provisions for unascertained liabilities, such as a general provision for bad debts
- Provision for losses of subsidiary companies
- Dividends paid or proposed
- Depreciation as per books
- Deferred tax and provision therefor
- Provision for diminution in value of any asset
Deductions from net profit include:
- Amounts withdrawn from reserves or provisions, if credited to the profit and loss account
- Depreciation as per books, excluding any component from asset revaluation
- Income exempt under Section 10, sections 11 or 12, other than long-term capital gains under clause 38
Once you arrive at the book profit figure, you apply the MAT rate. Compare this with your normal tax liability. Pay the higher amount.
Simplified example: Consider a domestic company with taxable income of 50 lakh INR under normal provisions and book profit of Rs. 120 lakh for the year.
Tax on income at 30% works out to 15,00,000 INR, while MAT at 15% of book profit works out to 18,00,000 INR.
Since MAT is higher, the company pays 18,00,000 INR, and the difference of 3,00,000 INR becomes MAT credit carried forward.
This single comparison, done correctly, is the foundation for every downstream decision about your company’s tax position and available credit.
Important: adjustments to book profit must be strictly confined to the items listed in Explanation 1 to Section 115JB.
Courts have consistently held that no adjustment beyond those expressly specified is permissible. You cannot add or deduct items not mentioned in the statute.
Which Companies Are Exempt From MAT
Not every company pays MAT. Several categories are exempt.
Companies opting for concessional tax regimes: Domestic companies that choose to pay tax under Section 115BAA (22% tax rate) or Section 115BAB (15% tax rate for new manufacturing companies) are exempt from MAT.
This is a significant advantage. You get a lower headline tax rate and you do not have to worry about MAT calculations or MAT credit.
Life insurance companies: Any income accruing or arising to a company from life insurance business referred to in Section 115B is exempt from MAT.
Shipping companies: Companies whose income is subject to tonnage taxation are not liable for MAT.
Foreign companies without a permanent establishment in India: If a foreign company is resident in a country with which India has a Double Taxation Avoidance Agreement (DTAA) and does not have a permanent establishment in India, MAT provisions do not apply. More broadly, provisions of Section 115JB do not apply to foreign companies that do not have physical presence in India in the form of an office, branch, or permanent establishment.
Non-residents paying tax on a presumptive basis: All non-residents who pay tax on a presumptive basis are exempt from MAT requirements.
Companies with nil or negative book profits: If your book profit is zero or negative, there is no MAT liability.
Certain banks: Banks constituted as “corresponding new banks” and not registered under the Companies Act, 2013, do not fall under Section 115JB.
SEZ-based companies were exempt from MAT until 2011, when the law was amended to bring SEZ units within its scope. MAT computation now covers SEZ income like any other.
Also, MAT may apply during the holiday period depending on the specific provisions. You cannot assume exemption just because you are on a tax holiday.
How MAT Interacts With Section 115BAA/115BAB Concessional Rates
Sections 115BAA and 115BAB gave Indian companies a straightforward trade-off: give up most exemptions and deductions in exchange for a lower headline tax rate, with no MAT to compute at all. Domestic companies opting for Section 115BAA or 115BAB are excluded from MAT provisions altogether.
Section 115BAA: Applies to any existing domestic company, letting it pay tax at a flat 22% rate (plus applicable surcharge and cess), provided it forgoes specified deductions and exemptions, including those under Section 10AA, additional depreciation, and various investment-linked deductions
Section 115BAB: Targets new manufacturing companies incorporated on or after 1 October 2019 and commencing production within the prescribed timeline, offering a concessional 15% rate under similar conditions.
For your business, the decision comes down to a single comparison: your effective tax rate under the normal regime plus MAT exposure, against the flat concessional rate with no deductions and no MAT.
The best option for you depends on your specific circumstances.
Companies that rely heavily on tax exemptions such as export incentives or accelerated depreciation, often end up paying MAT year after year. For them, opting for Section 115BAA can reduce tax outflow by eliminating MAT altogether.
However, the opposite may be true for asset-heavy or fast-growing businesses with substantial deductions. If those deductions significantly lower normal tax liability, giving them up for the 22% tax rate under Section 115BAA could result in a higher overall tax bill.
This decision also carries a permanence factor: once a company opts for 115BAA, the choice generally cannot be reversed in later years. Section 115BAB carries similar constraints, tied specifically to new manufacturing operations and their production start date.
The Finance Bill 2026 further tilts the balance. MAT is being reduced to 14% and converted into a final tax. New MAT credits will not be allowed to accrue from April 1, 2026. Companies can use old MAT credits, but only up to 25% of their tax liability each year.
This is a clear nudge toward the concessional regime.
MAT Credit – How It’s Carried Forward and Set Off
When MAT liability exceeds what you would have paid under normal provisions, the excess qualifies as MAT Credit Entitlement under Section 115JAA,
It is recognised as an asset when there is reasonable certainty of future taxable profits sufficient for set-off within the allowable carry-forward period.
Here is how it works:
In a year where your normal tax liability exceeds your MAT liability, you can set off the MAT credit against the excess. The credit is allowed as a set-off in a year in which tax is payable on total income computed under the normal provisions of the Act.
Carry forward window:
MAT credit can be carried forward for 15 assessment years immediately succeeding the assessment year in which such credit becomes allowable. Prior to amendment, the period was 10 assessment years, and before that, 7 years.
Credit that remains unused once the 15-year window closes lapses permanently, so tracking the vintage of each year’s credit balance is essential rather than treating it as one combined pool.
Set-off mechanism:
You can set off MAT credit only to the extent that your normal tax liability exceeds your MAT liability in that year.
You cannot set off more than the excess. Unused credit gets carried forward to the next year.
No interest:
No interest is allowable on MAT credit.
Example:
The company had 3,00,000 INR MAT credit carried forward. In the next year, its normal tax liability is 22,00,000 INR and MAT liability is 17,00,000 INR.
It can use MAT credit to the extent available, but only up to the point where the tax payable is brought down to the MAT amount for that year. If sufficient credit exists, the tax payable becomes 17,00,000 INR; if not, the shortfall is paid in cash.
Budget 2026 changes:
From April 1, 2026, significant changes apply:
- No new MAT credits will be allowed to accrue
- Existing MAT credits accumulated up to March 31, 2026, remain available for set-off
- Set-off is capped at 25% of your tax liability in a year
- Credits remain usable only within the existing 15-year carry-forward window
This is a major shift. Under the old framework, MAT functioned almost like an advance tax, with credits freely available for set-off against future normal tax liabilities. Under the new framework, MAT credit utilisation is restricted.
If you have accumulated MAT credits, plan their utilisation carefully. A 25% annual cap means credits must be used over multiple years, and any unused balance after the 15-year window expires.
For companies with significant MAT credits, this affects the decision to move to Sections 115BAA or 115BAB. While these regimes eliminate future MAT liability, existing credits can still be utilised subject to the cap. The key question is whether the lower tax rate outweighs the slower credit utilisation.
Common Adjustments to Book Profit Businesses Miss
Book profit computation under Section 115JB involves more line items than most in-house finance teams track consistently, and errors here directly inflate or deflate your MAT liability:
Missing the starting point:
Book profit starts with net profit as per the profit and loss account prepared under the Companies Act. You cannot use a different figure.
Some businesses use management accounts or tax-focused computations which is incorrect. The audited financial statements are the starting point.
Provisions for unascertained liabilities:
A general provision for bad debts, or any similar provision made without a specific, ascertained basis, must be added back to net profit when computing book profit.
Businesses that carry a standard percentage-based provision for doubtful debts each year, without linking it to specific identified accounts, often fail to add this back, understating book profit and MAT liability in the process.
Deferred tax entries:
These create confusion because they appear in the profit and loss account under Ind AS and Indian GAAP but do not belong in the MAT computation.
Deferred tax expense or income recognised for accounting purposes needs adjustment out of book profit, since MAT works off current tax exposure on book profit, not the deferred tax accounting entries that smooth reported earnings over time.
Not accounting for exempt income correctly:
Expenses relating to income exempt under Sections 10, 11, and 12 must be added back to book profit, with specific exceptions carved out for Section 10AA and long-term capital gains exempt under the erstwhile Section 10(38).
Companies often net off the exempt income correctly but forget to add back the associated expenditure, which understates the adjusted book profit.
Not adding back all reserves:
Amounts carried to any reserve (by any name) must be added back if debited to the P&L.
This includes general reserves, specific reserves, and even reserves created under a court order. The only exceptions are specified reserves like debenture redemption reserves.
Depreciation mismatches between books and MAT
Depreciation as per books qualifies for deduction while computing book profit, but the component arising specifically from asset revaluation must be excluded.
Companies that have revalued land, buildings, or plant and machinery need to strip out the revaluation-linked depreciation component separately, something standard depreciation schedules rarely isolate on their own.
Form 29B certification gaps
Failure to file Form 29B, the CA-certified report for book profit computation, can make the MAT computation defective and lead to adverse adjustments, MAT credit denial, and penalties.
It should not be treated as a routine attachment to the tax return. Like the tax audit report, it requires careful preparation because it is a key document used by the assessing officer to review MAT calculations.
Treating depreciation incorrectly:
Depreciation as per books must be added back. You then deduct depreciation as per Income Tax Act rules separately. This is a two-step process.
Many businesses miss the addition or get the deduction wrong.
Missing provision for diminution in value of assets:
Any provision for diminution in the value of any asset must be added back. This includes provisions for impairment, decline in investment value, and similar items.
Forgetting loss brought forward:
You can deduct loss brought forward or unabsorbed depreciation, whichever is less, as per books. But many businesses either miss this deduction or compute it incorrectly. The loss shall not include depreciation.
Adding back CSR expenditure:
Courts have held that CSR expenditure cannot be added to book profit beyond the adjustments expressly specified in the Explanation. You cannot make adjustments not listed in the statute.
Getting these adjustments right the first time avoids reassessment notices later, and it directly affects how much MAT credit you can legitimately claim and carry forward.
PKC’s Corporate Tax Planning & MAT Advisory
Corporate tax planning in India is complex. MAT adds another layer. Getting it wrong means overpaying tax or facing penalties. Getting it right requires expertise.
PKC Management Consulting provides corporate tax planning and MAT advisory services. We help businesses navigate the intricacies of Section 115JB, book profit computation, and MAT credit optimization.
MAT computation: PKC helps businesses accurately compute book profit by reviewing financial statements, identifying required adjustments, and ensuring compliance. We also assist with Form 29B, the CA-certified report required for MAT computation.
MAT credit planning: With Finance Bill 2026 changes, effective MAT credit management is critical. PKC helps businesses evaluate existing credits, plan utilisation within the carry-forward period.
Regime selection advisory: The choice between the old regime (with MAT) and the concessional regime (without MAT) requires careful analysis. We provide modelling and scenario analysis to determine which regime is financially optimal for your business. Factors considered include:
- Current and projected book profits
- Available deductions and exemptions
- Accumulated MAT credits and their usability
- Surcharge and cess implications
- Cash flow considerations
Litigation support and representation: Disputes with tax authorities on MAT matters are common. Issues arise around book profit computation, applicability of MAT, and MAT credit set-off. We represent clients before tax authorities, tribunals, and courts.
Advisory on specific MAT issues: PKC advises on specialised MAT matters including:
- Applicability to foreign companies and DTAA implications
- Implications for companies in tax holiday schemes
- Amalgamation, demerger, and other corporate restructuring scenarios
- Transition provisions under the new Income Tax Act, 2025
Integrated tax planning: MAT interacts with corporate tax rates, deductions, exemptions, and the concessional regimes. PKC provides integrated tax planning that considers the entire tax landscape, not just MAT in isolation.
Our goal is to ensure you pay the right amount of tax, not a rupee more, not a rupee less, while staying fully compliant with the law.
FAQs
Q1: What is the current MAT rate for companies in India?
The current MAT rate is 15% of book profit, plus applicable surcharge and health and education cess, effective from Assessment Year 2020-21. A reduced rate of 9% applies to units in an International Financial Services Centre that earn income solely in convertible foreign exchange.
Q2: Are companies under Section 115BAA required to pay MAT?
No. Domestic companies that opt for the concessional tax regime under Section 115BAA are excluded from MAT provisions entirely. The same exemption applies to companies opting for Section 115BAB, the regime for new manufacturing companies.
Q3: How long can MAT credit be carried forward?
MAT credit can be carried forward for 15 assessment years immediately following the year the credit becomes allowable, effective from AY 2018-19. This replaced the earlier 10-year carry-forward period. Credit unused after 15 years lapses permanently.
Q4: How is book profit different from taxable income for MAT purposes?
Book profit is net profit from your profit and loss account, adjusted with specific additions and deductions under Section 115JB, such as reserve transfers and exempt income add-backs. Taxable income is computed separately under normal provisions after standard deductions and exemptions.
Q5: Does MAT apply to all types of companies?
No. MAT does not apply to companies opting for Section 115BAA or 115BAB, to income from life insurance business under Section 115B, or to shipping income taxed under tonnage taxation. Certain foreign companies without a permanent establishment in India are also excluded.
Q6: Can MAT credit be adjusted against advance tax instalments?
MAT credit set-off is determined at the time of computing final tax liability for a year where normal tax exceeds MAT. In practice, companies factor expected MAT credit utilization into their advance tax estimates for that year, since it reduces the actual tax payable once normal provisions apply.
