New Income Tax Act 2025: Section List and Everything You Need to Know
India's tax system just went through its biggest makeover in over 60 years. The Income Tax Act, 2025 officially replaced the old Income Tax Act, 1961, and came into force on 1st April 2026. If you've been filing taxes for years and always found the rules confusing, here's some good news — this new law was built with you in mind.
Let's break it down in plain language.
Why Was a New Act Needed?
The Income Tax Act of 1961 served the country for decades, but it grew incredibly complicated over time. Over six decades, the Act had accumulated numerous amendments, provisos, and explanations, making it complex and difficult to navigate. Basically, the old law had too many patches on it — like an old jacket that's been stitched and re-stitched so many times you can barely find the original fabric.
The revised bill was tabled on 11 August 2025 following the withdrawal of an earlier version introduced in February 2025, and became law upon receiving Presidential assent on 21 August 2025.
The Big Numbers: How Many Sections Are There?
This is where things get interesting. The Income Tax Act, 2025 contains 536 sections and 16 schedules, compared to the 819 sections and 14 schedules of the 1961 Act. That's a reduction of nearly 300 sections — a massive cleanup.
The Income Tax Rules have also been reduced from 511 rules with 399 forms to 333 rules with 190 forms. Fewer forms to fill, fewer rules to remember — that's a win for every taxpayer.
Key Sections You Should Know
Here's a quick walk-through of the most important sections under the new Act:
Sections 1–3 — Basic Framework Section 1 covers the short title and commencement, Section 2 deals with definitions, and Section 3 defines the concept of "tax year."
Section 4 — Charge of Income Tax This is the core charging section. The charge of income-tax is on the total income of the tax year of every person as per the provisions of this Act.
Section 5 — Scope of Total Income The total income of any tax year of a person who is a resident includes all income from whatever source derived.
Section 6 — Residence in India Residential status in India in a tax year of a person is determined as per the provisions of this section. An individual is resident in India in a tax year if he is in India for a total period of 182 days or more.
Sections 13–19 — Income from Salary Section 13 defines the heads of income, Section 14 covers income not forming part of total income, Section 16 covers income from salary, Section 18 deals with profits in lieu of salary, and Section 19 covers deductions from salaries.
Sections 20–25 — Income from House Property Section 20 covers income from house property, Section 21 deals with determination of annual value, Section 22 covers deductions from house property income, Section 23 handles arrears of rent, and Section 24 addresses property owned by co-owners.
Sections 26–34 — Business and Profession Section 26 covers income under profits and gains, Section 33 deals with deduction for depreciation, and Section 34 covers general deductions.
Section 536 — Repeal and Savings This is the final and transitional section. Section 536(2)(c) of the new Act provides that the provisions of the repealed Income-tax Act shall continue to apply to any proceeding pending on the date of commencement of this Act.
The Biggest Change: "Tax Year" Replaces Two Confusing Terms
One of the most practical changes in the new Act is the removal of the confusing dual-year system. The new Act streamlines the tax process by replacing the complicated distinction between the "Assessment Year" and "Previous Year" with a single, unified "Tax Year" concept.
Earlier, taxpayers had to keep track of both the year they earned income and the year they were assessed on it — two different years for the same income. Now it's simply one "tax year," which aligns with the financial year starting 1st April.
What's New for Common Taxpayers?
The Act retains a ₹12 lakh annual basic exemption limit with revised tax slabs to benefit middle-income groups.
For senior citizens, the news is also positive. The new Act retains the existing tax slabs under the old tax regime, offering higher basic exemption limits for senior and super senior citizens, and also increases the TDS threshold limit on interest to ₹1 lakh.
Digital-first, faceless assessment procedures have been introduced to reduce human interface and curb corruption. This means fewer physical visits to tax offices and more transparent processing.
Does It Mean New Taxes?
A common worry is whether this new law brings new taxes. The answer is a clear no. The Income Tax Act, 2025 does not impose any new tax. The intent behind replacing the old Act with the new Act is simplification.
Your existing PAN card, TAN number, and all previously filed returns remain completely valid. Returns filed under the earlier law remain valid, and you do not need to refile them because of the Income-tax Act, 2025.
Final Thoughts
The New Income Tax Act 2025 is essentially the same tax policy written in a language that's far easier to understand and follow. With 536 well-organized sections across 23 chapters, it replaces decades of patchwork legislation with a clean, logical structure. Whether you're a salaried employee, a business owner, or a senior citizen, the new Act is designed to make your tax journey smoother. The best advice? Familiarise yourself with the sections relevant to your income type, and when in doubt, consult a CA who's up to speed with the new framework.
Effective from 1st April 2026 | Income Tax Act, 2025 — A Simpler Tax Code for Every Indian