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Income Tax is a tax levied on the total income of the previous year of every person. A person includes an individual, Hindu Undivided family (HUF), Firm, Company, Association of Persons (AOP), Body of Individuals (BOI) etc. Income Tax is considered as direct tax as it is levied directly on the income of the person.

This document covers
1.A: Income Tax return is the format in which the assessee is required to furnish information relating to his total income and tax payable. According to Sec 263(1) of IT Act 2025 (Sec 139(1) of IT Act 1961), the following persons are required to file Income Tax returns
1.B: Any person other than a company or Firm who is not required to file income tax return is also required to file income tax return in the following cases
1.C: CBDT has inserted rule 12AB stating the conditions where any person who is not required to file income tax return is also required to file income tax return in the following cases
The income tax returns are required to be filed within due date. Due dates for different category of taxpayers as described
As per Budget 2026, the due date for filing income tax returns by individuals, HUF, AOP, Firm, and BOIs with business income is extended to 31st August of the relevant assessment year
For Individuals and HUFs filing under ITR 1 and ITR 2, the due date remains same i.e., 31st July of the relevant assessment year
Previous Year: It means the financial year immediately preceding the assessment year. The income earned during the previous year is taxable in the assessment year.
Assessment Year: This means a period of 12 months commencing on 1st April every year. The year in which income is earned is previous year and such income is taxable in the immediately following year i.e, assessment year.
For Example, income earned in the previous year FY 2023-24 (from 01st Apr 2023 to 31st Mar 2024) is taxable in assessment year (AY) 2024-25.
Starting April 1, 2026, the words "Previous Year" and "Assessment Year" will no longer be used in the Income Tax Act 2025
Instead of above, "Tax Year" will be used making it easier for taxpayers to understand.
Tax Year means a period of 12 months starting from 01st April to 31st march. Tax year is starting from 01st April 2026
For a new business or profession, the tax year will start from the date the business/profession began or the date the income source newly came into existence, and it will end on 31st march
| Particulars | Financial Year(FY) | Assessment Year (AY) | Tax Year(TY) |
|---|---|---|---|
| Meaning | Year in which income is earned | Year in which income is taxed | It is the single year for earning and taxation |
| Period | 01st April to 31st March | 01st April to 31st March (next year) | 01st April to 31st March |
| Usage | Commonly used by taxpayers. EZTax.in uses the Financial Year (FY) from the Customer Perspective | Used in tax returns and compliance and mostly used by tax consultants, CA’s, Govt etc | Replaces FY and AY and it is used by everyone now |
| Complexity | Simple | Confusing | Simplified |
| Applicability | Till 31st March 2026 (FY 2025-26) | Till 31st March 2026 (AY 2026-27) | Effective from 01st April 2026 (TY 2026-27) |
| Example | FY 2025-26 | AY 2026-27 | TY 2026-27 |
| Income | Rate of Tax |
|---|---|
| RS 0 – Rs 2,50,000 | Nil |
| Rs 2,50,001 – Rs 5,00,000 | 5% |
| Rs 5,00,001 – Rs 10,00,000 | 20% |
| Above Rs 10,00,000 | 30% |
Note 1:
As per budget 2023, the basic exemption slab is Rs 3,00,000 for all the taxpayers irrespective of age under New Tax Regime
Budget 2025 proposed the increase of Basic Exemption Limit in New tax regime. The Basic exemption limit to file Income tax returns under New Tax regime for Individuals or HUF is Rs 4,00,000
Note that the Budget 2026 did not propose any changes to the income tax slabs.
FY 2025-26 onwards Applicable to Resident Individuals (<60 years), Senior Citizens (>=60 years and <80 years ) and Super Senior Citizens (>=80 years)
| Income | Rate of Tax |
|---|---|
| 0 – 4,00,000 | 0% |
| 4,00,001 – 8,00,000 | 5% |
| 8,00,001 – 12,00,000 | 10% |
| 12,00,001 – 16,00,000 | 15% |
| 16,00,001 – 20,00,000 | 20% |
| 20,00,001 – 24,00,000 | 25% |
| Above 24,00,000 | 30% |
| Income | Rate of Tax |
|---|---|
| 0 – Rs 10,000 | 10% of total income |
| Rs 10,001 – Rs 20,000 | 20% of total income |
| Above Rs 20,001 | 30% of total income |
The following are the benefits in filing Income Tax returns
All the persons should file Income Tax return within due date. Non-filing of income tax return has adverse consequences
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Disclaimer: This article provides an overview and general guidance, not exhaustive for brevity. Please refer Income Tax Act, GST Act, Companies Act and other tax compliance acts, Rules, and Notifications for details.