Income Tax Act, 1961: Meaning, Chapters, Important Sections, PDF & 2026 Update

The income tax laws in India is governed by the Income Tax Act, 1961. The act contains provisions related to income calculations, exemptions, deductions, and tax rates. With effect from 1st April 2026, the Income Tax Act of 1961 will be replaced by the Income Tax Act 2025. 

However for the current tax season (April to August 2026), Income Tax Act 1961 needs to be referred as the act is applicable to income earned up to 31st March 2026.

Key Highlights

• The new Income Tax Act, 2025, will come into effect from 1st April 2026, eliminating redundant provisions and aligning the law with current technological and economic developments.
• It contains 931 sections, higher as compared to the new Income Tax Act, 2025.
• The Act provides various deductions and exemptions, applicable separately under the old and new tax regimes.

What is the Income Tax Act 1961?

The Income Tax Act 1961 governs the levy, collection, and administration of direct taxes in India. It applies to all persons earning income in India, regardless of whether they are citizens or not. It contains provisions related to types of income, how to tax different kinds of income, tax benefits, exemptions, tax rates, due dates, penal provisions, etc.

• This act is applicable to the whole of India
• Present day, it contains more than 931 sections, 23 chapters, and 14 schedules
• Every year, the parliament passes Annual Finance Act, thereby amending the act to cater the requirements of changing economic situation.

Latest Update - Income Tax Act, 1961

• Tax laws in India has been governed by the Income Tax Act, 1961 since the year of implementation. However, with many amendments, inclusions, exclusions and modifications, the provisions in the old act has become sprawling and complicated. 
• Therefore, the government has revamped the entire act, through implementation of the Income Tax Act, 2025. 
• The new act has simplified provisions, improved presentation for easy reference, and made the provisions technologically more relevant.

Income Tax Bare Act - PDF Download

Download Income Tax Act, as amended by the Finance Act 2025.

Features of Income Tax Act 1961

Some of the salient features of the Income Tax Act 1961 are as follows:

• Income tax is a form of direct tax that needs to be borne by the taxpayer. It cannot be transferred to another individual. 
• The Central Government of India controls this form of taxation. 
• It is applicable to the taxpayer's income which was earned in the previous year. 
• Tax calculation is applicable based on the assessee’s income tax slab. 
• The government levies a progressive income tax rate so that rich and economically powerful individuals have to pay taxes at higher rates. 
• Deductions apply to a maximum limit per financial year in certain cases. 

Provisions of Income Tax Act 1961

There are several provisions in the Income Tax Act 1961. These provisions can be broady classified on the following grounds.

While the above may not be a exhaustive classification of all the provisions, it covers a significant part of the act.

Components of Indian Income Tax Law

• The Income Tax Act - the main law.
• Annual Finance Act - divided to four parts, contains amendments to tax provisions for every financial year.
• Income tax rules - Implementation rules
• Circulars and notifications - Directions issued to the department and assessees. Binding only on the department, optional compliance by the assessee  
• Judicial pronouncements - Previous judgements issued by the courts and tribunals can be used to interpret the law when the act is silent or ambiguous in certain parts.

Scope of Income Tax Act 1961

The scope or extent of tax implications under the Income Tax Act 1961 depends upon the assessee’s residential status:

Chapters of the Income Tax Act 1961

The Income Tax Act has 23 chapters in total, some of which have subparts. Find the important chapters mentioned in the table below:

Income Tax Act 1961 v/s Income Tax Act 2025