Corporate Tax Rates in India: Section 115BAA (22%) vs Old Regime (25%/30%) Guide

1. The 2019 Tax Revolution: Rationalization of Indian Corporate Tax

Prior to September 2019, India possessed one of the highest headline corporate tax rates in the developing world. Domestic corporations faced a baseline tax rate of 30%, which, when coupled with a cascading 12% surcharge and a 4% Health and Education Cess, propelled the effective tax rate to a crushing 34.94%. Although a labyrinth of tax holidays, accelerated depreciation blocks, weighted research deductions, and special economic zone incentives existed on paper, they were aggressively clawed back through the Minimum Alternate Tax (MAT) under Section 115JB at 18.5% plus surcharge and cess. The result was massive compliance friction, perpetual transfer pricing and deduction litigation, and capital flight to lower-tax jurisdictions such as Singapore and Vietnam.

In a historic macroeconomic policy shift, Parliament promulgated the Taxation Laws (Amendment) Act, 2019, inserting Section 115BAA and Section 115BAB into the Income Tax Act, 1961. This landmark reform slashed the corporate tax rate to a clean 22% (effective 25.17%) for all domestic companies, completely abolished MAT for participating entities, and dismantled decades of distortionary tax shelters, aligning India's direct tax competitiveness with modern global standards.

2. Section 115BAA: Universal 22% Concessional Rate Architecture

Section 115BAA is a universal concessional regime. Unlike specialized manufacturing regimes, Section 115BAA is available to any domestic company, regardless of whether it is an existing enterprise or newly incorporated, and irrespective of its sector (IT services, consulting, real estate, retail, manufacturing, logistics, or finance).

The Mathematical Formula for the 25.17% Effective Rate

Unlike the graduated slab-based surcharge structure of the Old Regime, Section 115BAA mandates a uniform, flat surcharge of 10% on the base tax across all income levels:

Whether a domestic company earns ₹50 Lakhs or ₹5,000 Crores of taxable profits, every single rupee is taxed at precisely 25.17%, eliminating complex marginal relief calculations and unpredictable surcharge jumps.

3. The Price of Concession: Statutory Deduction Forfeitures & Safe Exclusions

The concessional 22% rate is not unconditional. Under Section 115BAA(2), a domestic company opting into this regime is legally prohibited from claiming an exhaustive list of tax deductions and special incentives:

The Crucial Preserved Deductions

Despite these sweeping forfeitures, Parliament deliberately preserved two vital deductions under Section 115BAA:

4. The MAT Exemption Revolution: Section 115JB(5A) & Compliance Relief

The single greatest commercial advantage of Section 115BAA is not merely the rate reduction from 30% to 22%; it is the absolute statutory abolition of Minimum Alternate Tax (MAT). Under the landmark sub-section (5A) inserted into Section 115JB:

In one stroke, this statutory carveout eliminates:

• The requirement to compute Adjusted Book Profits under Section 115JB(2) involving dozens of additions and deductions (revaluation reserves, deferred taxes, exempt incomes);
• The mandatory filing of Form No. 29B certified by a chartered accountant; and
• Lengthy audit disputes regarding IND-AS transition reserves, fair-value gains, and impairment adjustments.

For service enterprises, retail chains, and IT companies with high accounting profits but few physical asset write-offs, this MAT exemption provides immense operational freedom and certainty.

5. The Old Corporate Regime: 25% (MSME) vs 30% (Large) Slabs & Surcharges

Domestic companies that choose NOT to opt into Section 115BAA remain governed by the traditional corporate tax regime. The tax rate under the Old Regime is divided into two distinct brackets based on historical turnover:

Crucially, companies remaining in the Old Regime are subject to Minimum Alternate Tax (MAT) under Section 115JB at 15% (plus applicable surcharge and cess). If regular tax payable is less than 15% of adjusted book profits, the company must pay MAT, with the excess tax credited to its account under Section 115JAA for carry-forward up to 15 assessment years.

6. Section 115BAB: The 15% Manufacturing Rate & Sunset Landscape

To establish India as a global manufacturing powerhouse, Parliament introduced Section 115BAB alongside Section 115BAA, offering an ultra-low base tax rate of 15% (effective 17.16% with 10% surcharge and 4% cess) for new domestic manufacturing companies.

Where a company qualifies for Section 115BAB, its effective tax rate of 17.16% represents one of the lowest statutory manufacturing levies in Asia, completely free of MAT.

7. Foreign Company Taxation in India: The 35% Base Rate Overhaul

Foreign corporate entities operating in India (such as project offices, branch offices, and non-resident companies earning royalty, fee for technical services, or capital gains in India) were historically taxed at a base rate of 40%.

To eliminate capital discrimination and invite multinational corporate regional headquarters, Parliament reduced the base tax rate for foreign companies from 40% to 35%. The applicable surcharge on foreign companies is:

• Total Income ≤ ₹1 Crore: Nil (0% Surcharge → Effective Rate = 36.40%).
• Total Income > ₹1 Crore up to ₹10 Crores: 2% Surcharge on tax → Effective Rate = 37.128%.
• Total Income > ₹10 Crores: 5% Surcharge on tax → Effective Rate = 38.22%.

Foreign companies continue to remain subject to MAT under Section 115JB if they have a Permanent Establishment (PE) in India under applicable Double Taxation Avoidance Agreements (DTAA).

8. The CFO Decision Framework: Break-Even Modeling & MAT Credit Trade-Offs

The decision to migrate from the Old Regime to Section 115BAA is the most consequential strategic direct tax decision a CFO faces. The choice is governed by an inescapable statutory trade-off: Section 115BAA offers a lower tax rate (25.17% vs 29.12%/34.94%), but it completely extinguishes accumulated MAT credit!

The Break-Even Formulation

A CFO must model corporate cash flows across three scenarios:

9. Procedural Compliance: Electronic Filing of Form No. 10-IC & Condonations

Electing the Section 115BAA regime requires strict statutory procedural compliance under Rule 21AE of the Income Tax Rules:

1. Mandatory Electronic Form 10-IC: The election cannot be made merely by selecting the checkbox in the ITR-6 return. The company must file Form No. 10-IC electronically on the income tax e-filing portal using a Digital Signature Certificate (DSC).
2. Strict Statutory Due Date: Form 10-IC must be filed on or before the due date specified under Section 139(1) for furnishing the return of income (ordinarily 31st October of the assessment year). If Form 10-IC is filed even one day late, the Assessing Officer is legally bound to assess the company under the Old Regime at 30%/25% plus surcharges.
3. CBDT Condonation Circulars: Recognizing widespread compliance defaults by MSMEs in the initial years, the CBDT issued Circular No. 6/2022 and Circular No. 19/2023 empowering Principal Commissioners to condone delays in filing Form 10-IC where the ITR-6 return was timely filed and the company had computed its tax at 22%. However, for AY 2027-28, timely electronic submission before the 31st October deadline remains non-negotiable.
4. Irrevocable Finality: Under Section 115BAA(5), once Form 10-IC is validly exercised, it applies to that assessment year and all subsequent assessment years. The company cannot opt back into the Old Regime in any future year.

10. Corporate Tax Structure: Master Analytical Comparison Matrix

The comparative matrix below synthesizes the complete corporate direct tax architecture for AY 2027-28:

11. Frequently Asked Questions (FAQ Schema)