The Income Tax Act's Section 115JB establishes the Minimum Alternate Tax (MAT), which makes sure businesses pay a minimum tax even when they take advantage of exemptions and deductions. The goal of MAT, its applicability to both domestic and international businesses, its calculation method, the credit system, and important modifications such as exclusions for businesses falling under Sections 115BAA and 115BAB are all covered in this blog. It also looks at MAT's function in maintaining tax equity, particularly for companies with high book earnings but low tax obligations.