Minimum alternate tax definitions shape MAT/AMT computation and Ind AS transition treatment, narrowing tax arbitrage opportunities.
Clause 206(19) supplies granular definitions aligning MAT/AMT computation with Ind AS convergence, insolvency law and cross statutory terms. Key terms include adjudicating authority (IBC), convergence date, transition amount with specified exclusions, net worth, company classifications, securities, tribunal, unit (IFSC) and year of convergence. These definitions phase in Ind AS transition impacts, harmonize tax and insolvency treatment, clarify eligibility for concessional AMT rates, and reduce tax arbitrage and interpretive disputes compared with the narrower definitions in Section 115JF.

Minimum alternate tax exclusions: narrow MAT/AMT to specified taxpayers including life insurers, alternative regime opters, presumptive and small taxpayers.
Clause 206(18) narrows MAT/AMT applicability by exempting companies with life insurance income, taxpayers who opt for specified alternative tax regimes, persons taxed under special or presumptive computation sections, specified funds identified in the Schedule, and non corporate persons whose adjusted total income falls below the statutory threshold; the exclusions reflect sectoral accounting differences, aim to promote concessional regimes and financial competitiveness, and reduce compliance burdens while requiring clear definitions and anti abuse safeguards.

Application clause ensures general tax provisions apply to MAT/AMT assessees unless expressly overridden by section rules.
Clause 206(12) provides that, save as otherwise provided in this section, all other provisions of the Income Tax Act apply to assessees covered by Clause 206, so that specific MAT/AMT rules within the clause override general provisions only to the extent of inconsistency and otherwise preserve the operation of assessment, appeal, penalty, interest, set-off, carry forward and credit mechanisms under the Act.

MAT/AMT credit mechanism permits excess minimum tax paid to be carried forward and set off against later regular tax liabilities.
MAT/AMT credit under Clause 206(13) is the excess of minimum tax paid over regular tax payable, available automatically to assessees covered by the provision. The credit carries two limitations: no interest on the credit and disregard of any foreign tax credit that is excessive relative to regular tax. Set off of the credit is permitted only when regular tax exceeds MAT/AMT, limited to that excess, with unused credit carried forward for a defined period, and any credit must be adjusted to reflect changes from reassessment or appellate orders.

MAT/AMT credit mechanism clarified - excess alternate-tax paid is a carry-forward entitlement usable against future regular tax liability.
MAT/AMT credit is the difference between tax paid under Clause 206(1) and tax payable under normal provisions, carried forward as a non-refundable, non-interest-bearing entitlement to be set off in future years when regular tax exceeds MAT/AMT; credits are adjusted for excess foreign tax credits and for any changes in tax liability resulting from assessment or appellate orders, and lapse after the prescribed carry-forward period.

Minimum tax harmonization: unified book profit computation and aligned accounting rules for MAT and AMT compliance.
Clause 206(2)-(5) defines book profit by B = P + (I - R), lists items to be added and reduced in computing book profit, mandates preparation of profit and loss statements as per applicable enactments or Schedule III, consolidates special adjustments for varied assessees (including Ind AS transition treatments), requires consistency in accounting policies and depreciation for MAT/AMT purposes, and preserves recomputation and relief mechanisms akin to existing procedures.

Minimum Alternate Tax expansion ensures broader taxpayer coverage, detailed book profit computation, and a structured carryforward credit regime.
Clause 206(1) creates a non-obstante regime imposing Minimum Alternate Tax and Alternate Minimum Tax across companies, co-operative societies and other persons by deeming book profit or adjusted total income as taxable where regular tax is below prescribed minima; it prescribes detailed additions and reductions to compute book profit, special rules for varied taxpayer classes (including Ind AS transition, insolvency and IFSC units), procedural certification, a structured MAT/AMT credit mechanism with carry forward, and specified exemptions and carve-outs.