New Income Tax Act 2025 – What Changes for Your Business from April 1, 2026

The new income tax act 2025 is the most significant rewrite of India’s direct tax law in over six decades. Effective from April 1, 2026, it replaces the Income Tax Act of 1961 — simplifying language, restructuring sections, and introducing changes that will directly affect how your business calculates tax, files returns, and manages compliance. Whether you run a proprietorship, partnership, LLP, or private limited company, understanding these changes now gives you time to restructure before the new rules take effect. This guide breaks down every change that matters for business owners — in plain language, with clear action steps.

What Is the New Income Tax Act 2025 and Why Does It Matter?

India’s Income Tax Act of 1961 had over 800 sections, hundreds of provisos, and decades of accumulated amendments that made it notoriously difficult to interpret — even for chartered accountants. The new income tax act 2025, introduced as the Income Tax Bill 2025 in the Union Budget session, consolidates all these provisions into a cleaner, shorter framework with simplified language and restructured sections.

Importantly, this is not just a cosmetic rename. Several substantive changes have been made — including revised new income tax slabs, updated deduction limits, rationalised TDS provisions, and a cleaner framework for business income. Therefore, every business owner needs to review their tax planning strategy before the April 1, 2026 effective date.

64 Yrs Old Act Being Replaced

Apr 1 2026 Effective Date

₹12L New Zero-Tax Threshold

30% Peak Rate Unchanged

New Income Tax Slabs 2025 — What Changes from April 1, 2026

One of the most talked-about changes under the new income tax act 2025 is the revised slab structure under the new tax regime. When the new income tax bill was tabled in Parliament, the updated new tax slabs drew the most attention — providing significant relief for individuals earning up to ₹12 lakh annually. This new tax structure makes the new regime even more attractive compared to the old one. Here is the revised slab breakdown effective April 1, 2026:

Annual Income	New Tax Regime Rate	Old Tax Regime Rate
Up to ₹4,00,000	Nil	Nil
₹4,00,001 – ₹8,00,000	5%	5%
₹8,00,001 – ₹12,00,000	10%	20%
₹12,00,001 – ₹16,00,000	15%	20%–30%
₹16,00,001 – ₹20,00,000	20%	30%
₹20,00,001 – ₹24,00,000	25%	30%
Above ₹24,00,000	30%	30%

Notably, with the rebate under Section 87A, individuals earning up to ₹12 lakh under the new regime will effectively pay zero income tax. Furthermore, the standard deduction in new tax regime is now ₹75,000 — meaning salaried employees with income up to ₹12.75 lakh will have zero tax liability. These new tax laws affect how you structure employee salaries and director remuneration in your business. Specifically, reviewing the new tax regime income tax slabs against your actual salary structure before April 2026 is a priority action.

New Income Tax Act 2025 — Key Changes for Business Owners

Beyond the slab changes, the new income tax bill 2025 introduces several structural and compliance changes that directly affect how businesses calculate and report their tax liability. Specifically, here are the most important ones every business owner must know.

1. Simplified Business Income Computation Under New Tax Rules

Under the new act, the lawmakers simplified the computation of business income by consolidating multiple overlapping provisions into a single, cleaner chapter. Sections dealing with allowable deductions — previously scattered across Sections 30 to 43D — are now restructured into a unified framework. Consequently, this reduces the risk of missing eligible deductions or claiming ineligible ones, which was a common audit trigger under the old act.

Additionally, the concept of “tax year” replaces “previous year” and “assessment year” — a long-overdue simplification that eliminates one of the most confusing aspects of the old income tax rules. From April 1, 2026, your tax year will be the same as your financial year: April 1 to March 31.

2. New Tax Regime Becomes the Default — Old Regime Impact on Businesses

Under the new tax law, the new tax regime is now the default regime for all taxpayers, including businesses. However, businesses and professionals with income from business or profession can still opt for the old tax regime — but only once, and the choice, once made, is largely irreversible for subsequent years.

This is particularly significant for business owners who rely on deductions under the old regime — such as HRA, LTA, Section 80C investments, or home loan interest. Therefore, a careful comparison of old tax regime vs new tax regime deductions is essential before April 2026. Switching to the new regime without analysis can result in significantly higher tax outgo for some business owners.

3. TDS Rationalisation — New Rates and Thresholds

The new act significantly rationalises TDS provisions — consolidating over 30 TDS sections from the old act into a cleaner structure with revised thresholds. Several key changes affect businesses directly:

TDS Category	Old Threshold	New Threshold	Rate
Rent (individual/HUF)	₹2.4L/yr	₹6L/yr	2%
Interest (banks/post office)	₹40,000/yr	₹1L/yr	10%
Professional fees (194J)	₹30,000/yr	₹50,000/yr	2% / 10%
Commission / Brokerage	₹15,000/yr	₹20,000/yr	2%
Dividend	₹5,000/yr	₹10,000/yr	10%

Similarly, the TDS compliance calendar changes — with new unified return formats replacing the existing 26Q, 27Q, and 24Q structure over time. Specifically, businesses will need to update their accounting software and internal processes to align with the revised thresholds and new section references.

4. Capital Gains Tax Rules — What Changes Under the New Income Tax Act

The new capital gains tax rules under the new act consolidate all capital gains provisions into a single chapter — making it significantly easier to determine holding periods, tax rates, and exemptions. The key change for business owners is the updated holding period for short-term vs long-term classification.

Furthermore, the exemption under Section 54 (now renumbered) for reinvestment of capital gains from property sale is retained — but with a cap of ₹10 crore on the exemption amount. However, businesses dealing in securities, mutual funds, or real estate must review their portfolio strategy in light of the revised taxation of capital gains framework before March 31, 2026.

5. Deductions Under New Tax Regime — What Survives and What Does Not

A critical question for every business owner is: which deductions survive under the new tax regime? Under the new act, the position is clearer than before. Here is what is retained and what is no longer available:

Deduction / Exemption	New Regime	Old Regime
Standard Deduction (Salaried)	✅ ₹75,000	✅ ₹50,000
Section 80C (PPF, ELSS, LIC etc.)	❌ Not available	✅ Up to ₹1.5L
Health Insurance Deduction (80D)	❌ Not available	✅ Up to ₹25,000–₹1L
HRA Exemption	❌ Not available	✅ Available
Home Loan Interest (Self-occupied)	❌ Not available	✅ Up to ₹2L
NPS Employer Contribution (80CCD2)	✅ Available	✅ Available
Business Expenses (actual)	✅ Available	✅ Available

6. Section Renumbering Under the New Income Tax Act — Why This Affects Business Compliance

One of the most practically disruptive changes under the new income tax rules is the complete renumbering of sections. Every reference to Section 80C, Section 10(14), Section 194C, and so on will change under the new act. Consequently, all your vendor agreements, employee offer letters, salary structures, and accounting software configurations that reference old section numbers will need updating before April 1, 2026.

Indeed, this is an underestimated compliance risk for small businesses. Specifically, if your TDS certificates, Form 16s, or payroll systems reference old section numbers after April 2026, they will create mismatches in Form 26AS and the Annual Information Statement — potentially triggering notices.

Impact of the New Income Tax Bill 2025 on Different Business Structures

The impact of the new income tax act 2026 — as it is colloquially called since it takes effect from April 2026 — varies by business structure. Here is a quick reference for the most common setups.

Proprietorship and Partnership Firms

Proprietors pay tax as individuals — therefore, the new income tax slabs and the default new regime directly apply to them. Fortunately, the lower tax rates under the new regime benefit most proprietors with business income below ₹20 lakh. However, proprietors who currently claim significant deductions — such as home loan interest, LIC premiums, or 80C investments — need to run a careful comparison before switching. The new tax system may or may not be beneficial depending on their specific deduction profile.

Private Limited Companies and LLPs

For companies and LLPs, the corporate tax rate remains unchanged at 22% for domestic companies under the concessional regime (25% for others). However, the new tax law introduces cleaner provisions for carry-forward of losses, depreciation computation, and treatment of disallowances. Additionally, the new act retains the Minimum Alternate Tax (MAT) framework but simplifies it. Specifically, the new act aligns book profit computation under MAT more closely with Indian Accounting Standards — reducing the complexity of MAT calculations for companies following Ind AS.

Startups and Newly Incorporated Businesses

The new tax rules retain the Section 80-IAC equivalent — the tax holiday for DPIIT-recognised startups — with some streamlined conditions. Furthermore, the new act restructures the Angel Tax exemption (previously Section 56(2)(viib)) with clearer safe harbour provisions for FMV computation. Consequently, startups raising funds need to ensure their valuation methodology is documented as per the new act’s requirements before completing funding rounds post April 2026.

New Income Tax Act 2025: Your Pre-April 2026 Action Checklist

Given the breadth of 2026 tax changes, acting early is far better than scrambling in March 2026. Specifically, here is what every business owner should do before the new act takes effect.

Action	Priority	Why It Matters
New vs Old regime comparison for all directors/proprietors	HIGH	Wrong regime = higher tax, hard to reverse
Update salary structures for employees	HIGH	New slabs change optimal salary structuring
Update TDS section references in accounting software	HIGH	Old section numbers cause 26AS mismatches
Review vendor contracts for TDS threshold changes	MED	New thresholds affect deduction obligations
Max out FY 2025-26 deductions under old regime	MED	Last year to use 80C, HRA, home loan in full
Capital gains tax planning before March 31, 2026	MED	New rules may change optimal exit timing
Full compliance review with your CA/tax advisor	MUST	Personalised planning specific to your business

How Futurex Helps Your Business Navigate the New Income Tax Act 2025

At Futurex Management Solutions, our team of chartered accountants in Noida and New Delhi has already begun reviewing client portfolios in light of the new income tax rules effective April 2026. Specifically, we help your business with:

🧮 Regime Comparison Analysis Detailed old vs new regime calculation for every director, partner, and proprietor	📋 Salary Restructuring Optimise employee CTC under new slabs to minimise TDS and maximise take-home
🔄 TDS Compliance Update Update all section references in Tally/Zoho and vendor agreements	📊 Tax Planning for FY 2025-26 Maximise current-year deductions before the old regime window closes
📁 Advance Tax Computation Accurate advance tax under the new slab structure to avoid interest under Section 234B/C	🏢 Business Structure Review Assess whether your current business structure is still optimal under the new tax law

Frequently Asked Questions — New Income Tax Act 2025

What is the new income tax act 2025 and when does it come into effect?

The new income tax act 2025 (Income Tax Bill 2025) replaces the Income Tax Act of 1961. It comes into effect from April 1, 2026 — meaning it applies from Financial Year 2026-27 onwards. All businesses and individuals will follow the new act from that date.

Is the new income tax act 2026 the same as the new income tax act 2025?

Yes — these refer to the same legislation. Introduced as the Income Tax Bill 2025 in Parliament, it takes effect from April 1, 2026 — so it is also referred to as the new income tax act 2026 in common usage. The official name remains the Income Tax Act 2025.

Will my business tax rate change under the new income tax act?

For companies and LLPs, the corporate tax rate remains unchanged. The 22% concessional rate for domestic companies under Section 115BAA (renumbered under the new act) continues. However, proprietors and partners will see changes in their individual income tax slabs, which affects the tax on business profit drawn as personal income.

Should I switch to the new tax regime for my business?

It depends entirely on your deduction profile. The new regime offers lower rates but removes most deductions. Specifically, if you currently claim significant 80C, HRA, home loan, or health insurance deductions, the old regime may still be beneficial. A proper tax calculation comparing both regimes — specific to your income and deductions — is essential before making this choice.

What happens to my old tax filings and pending assessments under the 1961 Act?

All proceedings, assessments, appeals, and refunds initiated under the Income Tax Act 1961 will continue under the provisions of that act — even after April 1, 2026. The new act governs only income and transactions from FY 2026-27 onwards. Therefore, pending notices, assessments, or refunds from earlier years remain governed by the old act.