ITR 1 vs ITR 3 vs ITR 4 Deadlines 2026: Who Files and When?
- Ankita Murkute
- 15 hours ago
- 8 min read
Filing an income tax return starts with two key decisions: selecting the correct ITR form and understanding the applicable deadline. For AY 2026-27, these two factors vary depending on the type of income and whether the taxpayer falls under audit or non-audit categories. The due dates are no longer uniform across all taxpayers, which makes it important to clearly identify where each form applies.
For income earned during FY 2025-26, the filing process continues under the provisions of the Income-tax Act, 1961. The introduction of the Income Tax Act, 2025 does not affect returns for this assessment year, even though the new law has come into force from April 1, 2026 for future tax years. This distinction is important because it ensures that taxpayers follow the correct rules and forms applicable for the current filing cycle.
The deadlines for AY 2026-27 differ across ITR-1, ITR-3, and ITR-4. Salaried individuals generally follow an earlier deadline, while business owners and professionals, especially those not subject to audit, have a slightly extended timeline. In audit cases, the deadline is further extended to allow additional time for financial verification and reporting.
Table of Contents
Overview of ITR Filing Deadlines for AY 2026-27
The filing deadlines for AY 2026-27 are structured based on the nature of income, type of taxpayer, and whether a tax audit is applicable. Instead of a single due date for all taxpayers, the Income Tax Department has defined separate timelines to accommodate different levels of complexity in income reporting.
For individuals filing ITR-1, which is typically used by salaried taxpayers with straightforward income, the due date is 31 July 2026. This category involves relatively simple disclosures, allowing returns to be filed earlier within the assessment cycle.
For taxpayers filing ITR-3 or ITR-4 in non-audit cases, the due date is 31 August 2026. These forms are generally used by individuals and HUFs with business or professional income. Since these returns involve more detailed reporting, an extended timeline is provided compared to salaried taxpayers.
In cases where a tax audit is applicable, the due date is further extended to 31 October 2026. Audit cases require verification of financial statements, reconciliation of records, and certification by a chartered accountant, which justifies the longer filing window.
This structured approach ensures that taxpayers with simple income profiles can complete filing early, while those with more complex financial activities are given additional time to prepare accurate returns.
ITR 1 vs ITR 3 vs ITR 4: Basic Difference
ITR-1, ITR-3, and ITR-4 are designed for different types of taxpayers based on the nature and complexity of their income.
ITR-1 is meant for individuals with simple income structures such as salary, pension, and limited other income. It is the most basic form and is used where there is no business or professional income.
ITR-3 is used by individuals and Hindu Undivided Families (HUFs who have income from business or profession and maintain books of account. It applies to taxpayers whose income is more complex and cannot be covered under simpler forms.
ITR-4 is applicable to taxpayers who opt for presumptive taxation schemes. It simplifies reporting by allowing income to be declared at prescribed rates without maintaining detailed books of account.
The key difference lies in income type and compliance requirements. ITR-1 is for salaried individuals, ITR-4 is for small businesses and professionals under presumptive taxation, and ITR-3 is for detailed business or professional reporting.
ITR-1 Due Date and Eligibility
ITR-1 is applicable to resident individuals with total income up to ₹50 lakh who earn income from salary or pension, up to two house properties, and other sources such as interest income.
This form cannot be used if the taxpayer has capital gains, business income, more than one house property, or foreign income or assets. It is also not applicable to non-residents or individuals with complex financial structures.
For Assessment Year 2026-27, the due date for filing ITR-1 is 31 July 2026. This earlier deadline reflects the relatively simpler nature of income reporting under this form.
ITR-3 Due Date and Eligibility
ITR-3 is applicable to individuals and HUFs who have income from business or profession and are required to maintain books of account. It is typically used by consultants, traders, freelancers, and business owners whose income does not fall under presumptive taxation.
This form also applies where income includes multiple sources, such as business income along with capital gains, house property income, or foreign income.
For Assessment Year 2026-27, the due date for filing ITR-3 in non-audit cases is 31 August 2026. If the taxpayer is subject to a tax audit, the due date extends to 31 October 2026.
ITR-4 Due Date and Eligibility
ITR-4 is meant for resident individuals, HUFs, and firms (other than LLPs) who opt for presumptive taxation under sections 44AD, 44ADA, or 44AE.
It is applicable when total income does not exceed ₹50 lakh and the taxpayer meets specific eligibility conditions. It cannot be used by taxpayers with capital gains, foreign income, multiple house properties, or those who are directors in a company.
For Assessment Year 2026-27, the due date for filing ITR-4 in non-audit cases is 31 August 2026, while audit cases must be filed by 31 October 2026.
Non-Audit vs Audit Case Deadlines Explained
Taxpayers are classified into audit and non-audit categories based on turnover and compliance requirements.
Non-audit cases include individuals and businesses that do not exceed prescribed turnover limits or are not required to maintain audited financial statements. These cases have earlier deadlines.
Audit cases apply where turnover exceeds specified thresholds or where certain conditions require a mandatory tax audit. These cases are given additional time due to the complexity involved in preparing and verifying financial statements.
For AY 2026-27, non-audit cases under ITR-3 and ITR-4 have a due date of 31 August 2026, while audit cases have a due date of 31 October 2026.
Simple Comparison Table of ITR Forms and Deadline
ITR Form | Applicable Taxpayer | Income Type | Due Date (AY 2026-27) |
ITR-1 | Resident individuals | Salary, up to two house properties, other sources | 31 July 2026 |
ITR-3 | Individuals/HUFs | Business or professional income (non-presumptive) | 31 August 2026 (Non-audit), 31 October 2026 (Audit) |
ITR-4 | Individuals/HUFs/Firms (non-LLP) | Presumptive income under specified sections | 31 August 2026 (Non-audit), 31 October 2026 (Audit) |
How to Choose the Correct ITR Form
Choosing the correct ITR form depends on understanding the type and source of income.
The first step is to identify all income sources, such as salary, business income, capital gains, and other sources. Once the income profile is clear, eligibility conditions for each form should be checked.
If the income is limited to salary and simple sources, ITR-1 is applicable. If there is business or professional income, the next step is to determine whether presumptive taxation is used. If yes, ITR-4 applies; otherwise, ITR-3 should be selected.
It is also important to check whether audit provisions apply, as this impacts both the form selection and filing deadline.
Common Mistakes While Selecting ITR Forms
Many taxpayers select incorrect ITR forms due to a misunderstanding of eligibility conditions.
A common mistake is using ITR-1 despite having capital gains or business income. Another frequent error is using ITR-4 without meeting presumptive taxation conditions.
Taxpayers also often ignore additional income sources such as foreign income or multiple house properties, which can make them ineligible for simpler forms.
Incorrect form selection can result in defective return notices and require refiling, leading to delays and potential penalties.
Impact of Missing the ITR Deadline
Missing the ITR filing deadline can lead to multiple consequences.
Late filing fees may be charged based on the delay period. Interest may also apply on unpaid taxes.
Additionally, taxpayers may lose the benefit of carrying forward certain losses, such as business or capital losses, to future years.
Delayed filing can also increase the chances of receiving notices or scrutiny from tax authorities.
Key Compliance Steps Before Filing
Before filing the return, it is important to complete certain compliance checks.
All income details should be verified using AIS and TIS statements. Bank accounts must be validated on the e-filing portal.
Deductions and exemptions should be carefully reviewed to ensure accurate reporting. Taxpayers should also confirm whether they are opting for the old or new tax regime.
Completing these steps helps reduce errors and ensures smooth processing of the return.
Conclusion
ITR-1, ITR-3, and ITR-4 serve different categories of taxpayers based on income type and complexity. The due dates for these forms also vary depending on whether the case falls under audit or non-audit categories.
Selecting the correct form and filing within the applicable deadline is essential to avoid compliance issues. Proper classification of income and timely preparation can help ensure accurate and efficient filing.
FAQ
1. What is the due date for ITR-1 for AY 2026-27?
The due date for filing ITR-1 for Assessment Year 2026-27 is 31 July 2026. This applies to salaried individuals and other taxpayers with simple income structures who are not subject to audit.
2. What is the due date for ITR-3 and ITR-4 for AY 2026-27?
For non-audit cases, the due date for both ITR-3 and ITR-4 is 31 August 2026. If the taxpayer is subject to a tax audit, the due date extends to 31 October 2026.
3. Who should file ITR-1 instead of ITR-3 or ITR-4?
ITR-1 should be filed by resident individuals who earn income from salary or pension, up to two house properties, and other sources like interest, and whose total income does not exceed ₹50 lakh. It is not suitable for business or professional income.
4. Who should file ITR-3?
ITR-3 applies to individuals and HUFs who earn income from business or profession and are required to maintain books of account. It is commonly used by consultants, traders, freelancers, and business owners with non-presumptive income.
5. Who is eligible to file ITR-4?
ITR-4 is meant for taxpayers opting for presumptive taxation under sections 44AD, 44ADA, or 44AE. It applies to resident individuals, HUFs, and firms (other than LLPs) with total income up to ₹50 lakh, subject to certain conditions.
6. Can a freelancer choose between ITR-3 and ITR-4?
Yes, a freelancer can choose ITR-4 if they opt for presumptive taxation and meet all eligibility conditions. If they maintain books of account or do not opt for presumptive taxation, they must file ITR-3.
7. What is the difference between audit and non-audit cases?
Non-audit cases are those where the taxpayer is not required to get accounts audited under tax laws. Audit cases apply when turnover or income exceeds prescribed limits or specific conditions trigger a mandatory audit. Audit cases have extended filing deadlines.
8. What happens if I miss the ITR filing deadline?
If you miss the deadline, you can still file a belated return. However, late filing fees and interest on outstanding taxes may apply. Certain benefits, such as carrying forward losses, may also be restricted.
9. What is the last date to file a belated return for AY 2026-27?
The belated return for AY 2026-27 can generally be filed up to 31 December 2026, subject to applicable penalties and conditions.
10. Can I switch from ITR-4 to ITR-3 after filing?
Yes, if the wrong form has been filed, the taxpayer can file a revised return using the correct form within the allowed revision timeline.
11. What are the consequences of filing the wrong ITR form?
Filing an incorrect ITR form may result in the return being treated as defective. The taxpayer may receive a notice and will be required to correct the return, which can delay processing and refunds.
12. Does AY 2026-27 fall under the new Income Tax Act, 2025?
No, AY 2026-27 filings continue under the provisions of the Income-tax Act, 1961. The new Income Tax Act, 2025, applies to later tax years.
13. Is it mandatory to file ITR even if income is below the taxable limit?
In some cases, filing is mandatory even if income is below the taxable limit, such as when certain high-value transactions are made, foreign assets are held, or TDS has been deducted, and a refund is expected.
14. Can salaried individuals file ITR after 31 July 2026?
Yes, salaried individuals can file after the due date as a belated return, but they may be liable to pay late filing fees and interest.
15. What should I check before selecting an ITR form?
Before selecting an ITR form, you should review all income sources, check eligibility conditions for each form, verify whether audit provisions apply, and ensure that the selected form correctly reflects your income profile.
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