The proposed changes to the Minimum Alternate Tax (MAT) regime, announced in the Union Budget for FY27, will significantly impact companies in capital-intensive sectors such as infrastructure, Special Economic Zone (SEZ) units and tax-holiday startups, analysts said. Electronics manufacturing units, power and renewables and automobile firms will also require to modify their tax planning. The government proposed a major overhaul of MAT to simplify the corporate tax structure and encourage companies to shift to the concessional 22% corporate tax regime.