Income Tax Act 2025 - Complete Guide: New Slabs, Key Changes and What It Means for You

What Is the Income Tax Act 2025?

The Income Tax Act 2025 (Act No. 30 of 2025) is a landmark legislation enacted by the Parliament of India on 21 August 2025. It received the assent of the President of India on the same date and came into force on 1 April 2026, replacing the Income Tax Act, 1961 — a law that governed direct taxation in India for over six decades.

The new Act is not merely an amendment; it is a complete consolidation and rewrite of India's direct tax law. The objective, as stated in its preamble, is to consolidate and amend the law relating to income-tax — making it simpler, clearer, and aligned with the modern digital economy. The Act extends to the whole of India and applies to all persons — individuals, HUFs, firms, companies, LLPs, and other entities — earning income in India or having income deemed to accrue in India.

Key Structural Changes: What Is New vs the 1961 Act

The Income Tax Act 2025 introduces several structural and conceptual changes that every taxpayer must be aware of:

1. Tax Year Replaces Previous Year and Assessment Year

One of the most significant simplifications is the replacement of the dual-year concept. Under the 1961 Act, income earned in the previous year (e.g., FY 2025-26) was assessed in a separate assessment year (e.g., AY 2026-27). The 2025 Act eliminates this confusion by introducing a single Tax Year concept — the year in which income is earned is also the year in which it is assessed and taxed. This aligns India's tax terminology with global standards used in the UK, USA, and Australia.

2. Digital-First Recordkeeping Recognised

Section 2(19) of the Act explicitly defines "books or books of account" to include records maintained in electronic or digital form, on cloud-based storage, or on any electromagnetic data storage device (floppy discs, tapes, portable drives, memory cards, external hard drives) or as printouts of such digital data. This formally recognises cloud accounting software, ERP systems, and digital ledgers as legally valid books of account — a critical update for the digital economy.

3. Schedules Replace Scattered Sections

The new Act reorganises exemptions, rates, and special provisions into numbered Schedules I through XIV instead of scattered sections across the Act. Exempted incomes are consolidated in Schedules II through VII, tax rates are in Schedule I, and approved fund conditions are in Schedule XI. This makes cross-referencing and compliance significantly easier for taxpayers and practitioners.

4. Cash Payment Threshold Continues at Rs. 10,000

Under Section 36(4), any payment or aggregate of payments made in a day to a single person exceeding Rs. 10,000 through non-banking or non-digital modes continues to be disallowed as a business deduction. This provision is carried forward unchanged from the 1961 Act, reinforcing the government's push for digital and banking-channel transactions.

New Income Tax Slabs Under the Income Tax Act 2025

The Act introduces a revised default tax regime with more granular slabs providing relief to the salaried middle class while maintaining progressivity at higher income levels. The new slab structure under the default regime is as follows:

Key point: The default regime does not allow most exemptions and deductions (such as those under erstwhile Sections 80C, 80D, HRA, LTA, and standard deduction for house property). Taxpayers with significant eligible deductions should evaluate the alternate computation to determine which is more tax-efficient.

Capital Gains Tax: Key Changes Under IT Act 2025

Long-Term Capital Gains on Listed Equity and Equity Mutual Funds

Under Section 198 of the IT Act 2025, long-term capital gains (LTCG) on transfer of equity shares (on which Securities Transaction Tax has been paid) or units of equity-oriented mutual funds exceeding Rs. 1,25,000 in a tax year are taxable at 12.5% without indexation benefit. This raises the exemption threshold from Rs. 1,00,000 under the 1961 Act — giving marginal relief to small equity investors.

Short-Term Capital Gains on Equity

Short-term capital gains (STCG) on listed equity shares on which STT is paid are now taxed at a flat 20%. This was increased from 15% under the Finance Act 2024 (applicable to the 1961 Act) and is now codified in the 2025 Act.

Immovable Property: Stamp Duty Valuation Rule Retained

Section 78(1) of the new Act retains the provision that if the sale consideration for land or building is less than the stamp duty value, the stamp duty value shall be deemed as the full value of consideration for computing capital gains. This prevents artificial undervaluation in real estate transactions and ensures stamp duty and income tax are computed on realistic property values.

Taxation of Virtual Digital Assets: Cryptocurrency and NFTs

The Income Tax Act 2025 formally codifies the taxation of Virtual Digital Assets (VDAs) under the special rates table in Section 192:

• Income from transfer of any VDA (including cryptocurrency, NFTs, and similar digital assets): taxable at flat 30%
• No deduction is permitted except the cost of acquisition
• No set-off of VDA losses against any other income (salary, business, capital gains, etc.)
• VDA losses cannot be carried forward to future tax years
• No benefit of basic exemption limit or slab deductions for VDA income

This makes VDA one of the most heavily taxed asset classes in India — a clear legislative signal to ensure full compliance and disclosure in the fast-growing digital asset market.

Corporate Tax Rates Under the Income Tax Act 2025

The concessional corporate tax framework introduced under the Taxation Laws (Amendment) Act 2019 has been codified into the new Act:

• New domestic manufacturing companies: 15% concessional rate (subject to conditions — no depreciation/losses carried forward, no exemptions under specific Schedules)
• Existing domestic companies (alternate/concessional regime): 22% on total income — without claiming specified deductions and exemptions
• Regular domestic companies (normal provisions): 30% plus applicable surcharge and Health and Education Cess at 4%
• Block assessment — undisclosed income detected in search or survey: 60% flat tax under Section 192, plus applicable surcharge

Firm Taxation: Partner Remuneration and Interest Deduction Limits

Section 35(3)(e) of the IT Act 2025 prescribes strict deduction caps for amounts paid to partners of a firm:

• Working partner remuneration on the first Rs. 6,00,000 of book profit (or in case of a loss): Rs. 3,00,000 or 90% of book profit, whichever is higher
• On the balance of book profit beyond Rs. 6,00,000: 60% of such balance
• Interest paid to any partner: capped at 12% simple interest per annum as authorised by the partnership deed
• Remuneration to non-working partners: not deductible

Any remuneration or interest exceeding these limits, or not authorised by the partnership deed, will be disallowed as a business deduction and treated as the firm's taxable income.

Key Definitions Under Section 2 of the IT Act 2025

Section 2 of the new Act is a comprehensive and updated definitions section. Key definitions include:

• Assessee [Sec 2(11)]: Any person by whom tax or any other sum is payable under the Act, including any person against whom assessment proceedings have been initiated
• Assessment [Sec 2(13)]: Includes reassessment and recomputation
• Block of Assets [Sec 2(17)]: A group of tangible assets (buildings, machinery, plant, furniture) or intangible assets (know-how, patents, copyrights, trademarks, licences, franchises, or similar business rights) for which the same rate of depreciation is prescribed
• Amalgamation [Sec 2(6)]: Merger where all property and liabilities of the amalgamating company transfer to the amalgamated company, and at least 75% in value of the amalgamating company's shareholders become shareholders of the amalgamated company
• Agricultural Income [Sec 2(5)]: Rent or revenue from land used for agriculture, income from cultivation, sale of agricultural produce (without processing beyond normal), and income from nurseries — continues to be fully exempt
• Business [Sec 2(20)]: Includes any trade, commerce, manufacture, or adventure or concern in the nature of trade, commerce, or manufacture

What Remains Unchanged Under the New Act

Despite the complete structural overhaul, the following core provisions from the 1961 Act are retained in the 2025 Act:

• Five heads of income: Salaries, House Property, Profits and Gains of Business or Profession, Capital Gains, and Income from Other Sources
• TDS (Tax Deducted at Source) and TCS (Tax Collected at Source) framework — now under Chapter XIX-B
• Advance tax payment system and due dates
• Assessment, rectification, appeal, and revision procedures
• Double Taxation Avoidance Agreement (DTAA) relief provisions — Sections 159 and 160
• Transfer pricing and international tax provisions
• Agricultural income exemption
• Minimum Alternate Tax (MAT) on book profits of companies

Effective Date and What Taxpayers Should Do Now

The Income Tax Act 2025 is effective from 1 April 2026. All income earned from Tax Year 2026-27 onwards will be governed by the new Act. For any income, deductions, assessments, appeals, or proceedings relating to periods before 1 April 2026, the Income Tax Act 1961 will continue to apply fully.

Immediate action points for taxpayers and businesses:

• Review salary structures and investment declarations under the new slab framework
• Update partnership deeds to reflect authorised remuneration and interest as per new limits
• Review VDA holdings and plan disclosures for Tax Year 2026-27
• Align company tax planning with the concessional vs regular rate framework
• Ensure books of account (including digital records) comply with Section 2(19) definitions

How TaxClue Can Help You Navigate the IT Act 2025

Transitioning to a new income tax law requires careful planning. Our team of qualified Chartered Accountants and Tax Consultants at TaxClue can help you with ITR filing under IT Act 2025 provisions, advance tax calculations, corporate tax planning, VDA tax compliance, and representation in assessments. Get a free consultation — our experts respond within 30 minutes on business days.