Minimum Alternate Tax (MAT) is an important provision under the Income Tax Act, 1961, designed to ensure that taxpayers with substantial income do not avoid tax liability by claiming various deductions and exemptions. However, students often face confusion regarding its applicability, computation, and differences.
To build conceptual clarity, case-based learning can be highly effective. By developing practical scenarios for companies, students can better understand when MAT is applicable and how tax liability is computed under each system.
Which Companies Must Pay MAT?
MAT is applicable to all companies under section 115JB, including domestic and foreign companies (subject to certain exceptions), unless they opt for concessional tax regimes such as Section 115BAA of Income Tax Act or Section 115BAB, where MAT provisions do not apply. As per Section 115JB, all companies must pay corporate tax at least equal to the higher of the following:
- Normal Liability: Tax computation on the taxable income by using the tax rates applicable to the company. Tax computed using this method is termed normal tax liability.
- MAT: Tax computed @ 15% (plus surcharge and cess as applicable) on book profit. The tax computed using this method is called MAT.
Updated Tax Rates for FY 2025–26 (AY 2026–27)
MAT (For Companies)
Applicable under
Section 115JB of Income Tax Act
MAT Rate
- 15% of Book Profit*
- Add: Surcharge (as applicable)
- Health & Education Cess @ 4%
Effective MAT = 15.6% (excluding surcharge)
How to Calculate MAT?
MAT is equal to 15% with effect from AY 2020-21 (MAT was 18.5% prior to AY 2020-21) of Book profits (Plus surcharge and cess, as applicable). Book profit means the net profit as shown in the profit & loss account for the year as increased and decreased by some items.
Example:
XYZ Ltd. is a domestic company engaged in manufacturing. It is evaluating whether to continue under normal provisions (with MAT) or opt for Section 115BAA of Income Tax Act.
| Net profit as per Profit& Loss Account Rs. 80,00,000 |
| Additional information (Amount in Rs.) |
| Provision for Income Tax 5,00,000 |
| Deferred Tax 2,00,000 |
| Provision for doubtful debts 1,50,000 |
| Depreciation (incl. revaluation Rs.1,00,000) 8,00,000 |
| Agricultural Income 3,00,000 |
| Depreciation (excluding revaluation) 7,00,000 |
| B/F loss or unabsorbed depreciation (lower) 4,00,000 |
Normal Tax Data
| Particulars | Amount (Rs.) |
| Deduction u/s 80-IA | 25,00,000 |
| Additional depreciation | 10,00,000 |
Other Information
- Turnover ≤ Rs.400 crore → Tax rate = 25%
- Total income < Rs.1 crore → No surcharge (normal)
MAT Computation
| Details | Amount (Rs.) | Reasons |
| Net profit as per Profit& Loss Account | 80,00,000 | |
| Add: Provision for Income Tax | 5,00,000 | Not allowable expense |
| Deferred Tax | 2,00,000 | Notional item |
| Provision for Doubtful Debts | 1,50,000 | Unascertained liability |
| Depreciation | 8,00,000 | Added fully first |
| (A) | 96,50,000 | |
| Less: | ||
| Agricultural Income | 3,00,000 | Exempt income |
| Depreciation | 7,00,000 | Actual allowable depreciation |
| B/F loss or unabsorbed depreciation (lower) | 4,00,000 | Relief for past losses |
| (B) | 14,00,000 | |
| Book Profit (A-B) | 82,50,000 |
1.MAT Calculation
- MAT @ 15% = Rs.12,37,500
- Cess @ 4% = Rs.49,500
MAT = Rs.12,87,000
2.Taxable Income
| Details | Rs. |
| Net profit as per Profit& Loss Account | 80,00,000 |
| Deduction u/s 80-IA | 25,00,000 |
| Additional depreciation | 10,00,000 |
| Taxable Income | 45,00,000 |
Tax Calculation
- Tax @ 25% = Rs.11,25,000
- Cess @ 4% = Rs.45,000
Normal Tax = Rs.11,70,00
3. Tax under Section 115BAA
Adjusted Income
Tax Calculation
- Tax @ 22% = Rs.17,60,000
- Surcharge @ 10% = Rs.1,76,000
Subtotal = Rs.19,36,000
- Cess @ 4% = ₹77,440
Tax (115BAA) = Rs.20,13,440
Final Comparison
| Particulars | Normal | MAT | 115BAA |
| Tax Liability | Rs.11,70,000 | Rs.12,87,000 | Rs.20,13,440 |
Final Decision
Under normal provisions, MAT is applicable (higher than normal tax)
- Final Tax Payable = Rs.12,87,000 (MAT)
- Company should NOT opt for 115BAA
MAT Credit
MAT credit is the difference between MAT and the regular tax. It enables a company to carry forward the “extra” tax it pays under MAT (as against the regular tax liability) in a given financial year. This MAT credit can be set off in subsequent years when the company’s tax liability, as per standard provisions, exceeds the MAT liability.
The maximum MAT credit that can be claimed cannot be greater than the difference between the regular tax and MAT. Unutilized MAT credit can be piled up for 15 years.
Example:
The regular tax liability of the company in the above case is 11.70 lakhs while the liability under MAT is 12.87 lakhs. In this case, MAT is higher than the regular tax. Therefore, the company is eligible for MAT Credit in line with the provision in Section 115JAA.
MAT Credit = MAT – Regular Tax
= Rs. 12.87 lakhs – Rs. 11.70 lakhs
= Rs. 1.17 lakhs.
