How to File ITR Online for FY 2025-26: Complete Guide

Filing your Income Tax Return (ITR) on time is not just a legal requirement—it's an essential financial practice that helps you claim refunds, maintain compliance, and build your financial credibility. With the Income Tax Department's e-filing portal becoming more user-friendly every year, filing your ITR online has never been easier. If you earned income during the Financial Year (FY) 2025-26, you need to report it in Assessment Year (AY) 2026-27. This comprehensive guide walks you through every step of filing your ITR online, from understanding deadlines to completing e-verification.

Understanding ITR Filing: FY 2025-26 and AY 2026-27

Before diving into the filing process, it's crucial to understand the terminology. The Financial Year (FY) is the period from 1 April 2024 to 31 March 2025, when you earn income. The Assessment Year (AY) 2025-26 is when the income earned in FY 2025-26 is assessed and taxed. When you file your ITR for FY 2025-26, you're essentially reporting all income earned during this 12-month period to the Income Tax Department.

Section 139 of the Income Tax Act mandates that every individual must file an income tax return if the total income before deduction exceeds the basic exemption limit, while companies and firms have to furnish returns regardless of profit or loss. Even if your income is below the taxable limit, filing ITR can be beneficial for claiming refunds, applying for loans, or processing visa applications.

Who Must File ITR for FY 2025-26?

You are required to file ITR under Section 139(1) if:

• Your gross total income exceeds the basic exemption limit (₹2.5 lakh for individuals below 60 years under old regime, or ₹4 lakh under new tax regime (effectively ₹12 lakh tax-free under new regime with Section 87A rebate))
• Tax Deducted at Source (TDS) or Tax Collected at Source (TCS) is ₹25,000 or more (₹50,000 for senior citizens)
• You wish to carry forward losses from business, capital gains, or other sources
• You are a resident with assets or financial interests outside India
• Your expenditure on foreign travel exceeds ₹2 lakh, electricity consumption is ₹1 lakh or more, deposits in current accounts exceed ₹1 crore, business receipts exceed ₹60 lakh, or professional receipts exceed ₹10 lakh

ITR Filing Deadlines for FY 2025-26 (AY 2026-27)

Understanding deadlines is crucial to avoid penalties and interest charges. The due date for filing Income Tax Returns (ITR) for individuals (non-audit cases) for FY 2025-26 (AY 2026-27) is 31 July 2026. This was an extension from the original deadline of 31 July 2026.

Taxpayer Category	Original Due Date	Extended Due Date	Belated Return Deadline
Individuals/HUFs (non-audit)	31 July 2026	31 July 2026	31 December 2026
Businesses requiring audit	31 October 2026	31 October 2026	31 December 2026
Companies (domestic)	31 October 2026	31 October 2026	31 December 2026
Companies with international transactions	30 November 2026	30 November 2026	31 December 2026

Consequences of Missing the Deadline

If you miss the original deadline, you can still file a belated return under Section 139(4), but this comes with significant disadvantages:

Late Filing Fee (Section 234F): ₹1,000 if total income does not exceed ₹5 lakh, and ₹5,000 if filed after the due date but on or before 31st December.

Interest Charges (Section 234A): 1% per month or part month on the unpaid tax amount from the due date until filing.

Loss Carry Forward Restriction: You will not be allowed to carry forward losses from business or capital gains if you miss filing your ITR before the deadline, except for losses from house property.

Choosing the Right ITR Form

The CBDT has rolled out revised ITR forms—ITR-1, ITR-2, ITR-3, ITR-4, ITR-5, and ITR-6—for AY 2026–27, incorporating several significant changes to align with evolving tax norms. Selecting the correct form is critical for successful filing.

ITR-1 (Sahaj)

ITR-1 remains applicable for resident individuals with income up to ₹50 lakh from salary, one house property, and other sources. The new ITR-1 now also permits reporting of LTCG up to ₹1.25 lakh under Section 112A from listed equity shares or equity mutual funds.

ITR-2

For individuals and HUFs not having income from business or profession. The income threshold for mandatory disclosure of assets and liabilities has been increased from ₹50 lakh to ₹1 crore.

ITR-3

Applicable to individuals and Hindu Undivided Families (HUFs) having income from business or profession, with enhanced disclosure requirements.

ITR-4 (Sugam)

ITR-4, applicable to individuals, HUFs, and firms (excluding LLPs) under presumptive taxation schemes, has been updated to allow reporting of LTCG under Section 112A up to ₹1.25 lakh.

Step-by-Step Guide to File ITR Online for FY 2025-26

Step 1: Gather Required Documents

Before you begin, collect all necessary documents:

• Form 16: TDS certificate from your employer showing salary and tax deducted
• Form 26AS: Consolidated tax statement showing all TDS/TCS details (accessible via Form 26AS / TDS Fetch Tool)
• Bank statements: Interest earned, transactions (analyze using Bank Statement Analyser)
• Investment proofs: Life insurance premiums, PPF, ELSS, NSC under Section 80C
• Capital gains statements: If you sold property, stocks, or mutual funds (calculate using Capital Gain Calculator or Stock Profit Calculator)
• HRA receipts: If claiming house rent allowance (verify eligibility with HRA Calculator)
• Aadhaar and PAN cards

Step 2: Register/Login to Income Tax E-Filing Portal

Login to e-Filing portal by entering user ID (PAN), and check "Please confirm your secure access" message displayed above then enter password and then click on "Continue". If you're a first-time user, register using your PAN on the official portal at www.incometax.gov.in.

Step 3: Navigate to File Income Tax Return

Go to 'e-File' > 'Income Tax Returns > File Income Tax Return' link. Select Assessment Year as AY 2026-27 for income earned in FY 2025-26.

Step 4: Choose Filing Method

You can file ITR using two methods:

Online Method: Login to the Income Tax e-Filing portal using PAN and login details. On Income Tax Return Page, select your ITR Form Number and file your income tax return online.

Offline Method: Download the applicable ITR utility from 'Downloads > Income Tax Return. Extract the downloaded utility ZIP file and open the Utility from the extracted folder. Fill details offline, generate JSON file, and upload to the portal.

Step 5: Select Appropriate ITR Form and Filing Status

Choose your status (Individual/HUF/Others) and select the appropriate ITR form based on your income sources. Under "Filing Section," select Section 139(1) if filing before the due date.

Step 6: Choose Your Tax Regime

Decide between the old tax regime (with deductions under Sections 80C, 80D, HRA, etc.) and the new tax regime (with lower tax rates but fewer deductions). Use the Income Tax Calculator to compare both regimes and determine which saves you more tax. With effect from FY 2025-26, income up to ₹12 lakhs can be effectively tax-free under the new tax regime due to Section 87A rebate of up to ₹60,000.

Step 7: Enter Income Details

Fill in all income details under various heads:

• Salary Income: Enter gross salary, allowances, perquisites from Form 16
• House Property: Report rental income or claim deductions on home loan interest
• Capital Gains: Report gains from sale of property, stocks, mutual funds
• Business/Profession: If applicable, report business income and expenses
• Other Sources: Interest from savings account, fixed deposits, etc.

Verify pre-filled data such as PAN, Aadhaar, salary, and bank details that the portal automatically populates from Form 26AS and Annual Information Statement (AIS).

Step 8: Claim Deductions and Exemptions

If you've opted for the old tax regime, claim deductions under:

• Section 80C: Up to ₹1.5 lakh for investments in PPF, ELSS, life insurance, etc.
• Section 80D: Medical insurance premiums
• Section 24(b): Home loan interest up to ₹2 lakh
• HRA exemption: If living in rented accommodation
• Section 80E: Education loan interest

Step 9: Calculate Tax and Pay Balance

Review the return summary, pay any balance tax, and confirm submission. If tax is already deducted through TDS and matches your liability, no additional payment is needed. If you've paid excess tax, you'll receive a refund.

Step 10: Validate and Preview Your Return

After confirmation of all tabs, click on "Proceed". Click on "Preview return" check out the first check box and click on "Proceed to preview". ITR form can be downloaded or take print out. Click on "Proceed to validation" to get zero error.

Step 11: Submit Your ITR

After validation shows zero errors, submit your return. You'll receive an acknowledgment number which serves as proof that your ITR has been filed.

Step 12: E-Verify Your ITR (Critical Step)

The e-Verification process can be done using Aadhaar OTP (linked Aadhaar and mobile number required), Net Banking Login via authorised banks, Pre-validated Bank Account (EVC sent to registered mobile/email), Pre-validated Demat Account (EVC sent via depository), or Digital Signature Certificate (DSC) which is mandatory for certain categories.

You must complete your verification within 30 days of carrying out your income tax e-filing via Aadhaar OTP, EVC, net banking, or by posting the signed ITR-V to CPC Bengaluru. Without e-verification, your ITR filing is considered incomplete.

Filing Belated Return Under Section 139(4)

If you missed the deadline of 31 July 2026, don't panic. For the Financial Year 2025-26 (Assessment Year 2026-27) the last date to file ITR is 31st July 2026. However, if you miss filing on this deadline you can file a belated return by 31st December 2026 with penalties and interest.

To file a belated return:

1. Follow the same steps as mentioned above
2. In the filing section, select Section 139(4) instead of 139(1)
3. Pay the applicable late fee and interest charges
4. Complete e-verification within 30 days

Important: You can file belated return only under the new regime, even if you have filed Form-10IEA before the due date, and you cannot carry forward business or capital losses.

Updated Return (ITR-U) Under Section 139(8A)

If you miss even the belated return deadline of 31 December 2026, there's still a provision to file an Updated Return. The updated return for FY 2025-26 can be filed between April 1, 2027, and March 31, 2031.

If an updated return is filed within one year from the end of the relevant assessment year, a penalty of 25% of the average tax and interest payable is applied. If the updated return is filed between one and two years from the end of the assessment year, the penalty increases to 50%.

Common Mistakes to Avoid While Filing ITR

• Incorrect bank account details: Delays refund processing
• Not matching Form 26AS: Ensure all TDS entries match with your records
• Missing income sources: Report all income including interest, dividends, rental income
• Wrong ITR form selection: Leads to rejection or defective return notice
• Not e-verifying: Return remains incomplete without verification
• Ignoring capital gains: Must report even if exempt or below threshold

Post-Filing: What Happens Next?

After successful filing and e-verification:

1. Processing: The Income Tax Department processes your return at the Centralized Processing Center (CPC) in Bengaluru
2. Intimation under Section 143(1): You'll receive intimation confirming your return has been processed, usually within 20-45 days
3. Refund: If applicable, refunds are credited directly to your pre-validated bank account
4. Notices: If there are discrepancies, you may receive notices under Section 139(9) for defective returns or other sections

Tax Planning Tips for FY 2026-27

While filing your return for FY 2025-26, start planning for the current financial year FY 2026-27:

• Maximize tax-saving investments under Section 80C before 31 March 2027
• Consider switching between old and new tax regimes based on your deductions
• Maintain proper documentation throughout the year
• Pay advance tax if applicable to avoid interest under Section 234B and 234C
• Keep track of capital gains transactions for accurate reporting

Frequently Asked Questions

What is the last date to file ITR for FY 2025-26?

The last date to file ITR for FY 2025-26 (AY 2026-27) was extended to 31 July 2026 for non-audit taxpayers. If you miss this deadline, you can still file a belated return under Section 139(4) by 31 December 2026, though late fees and interest will apply under Sections 234F and 234A.

Which ITR form should I use for salary income?

For salary income only, use ITR-1 (Sahaj) if your total income is up to ₹50 lakh and you have income from salary, one house property, and other sources like interest. From AY 2026-27, From AY 2026-27, ITR-1 also allows reporting of long-term capital gains under Section 112A up to ₹1.25 lakh from listed equity shares or equity mutual funds.

What documents are needed to file ITR online?

Essential documents include Form 16 from your employer, Form 26AS showing TDS details, bank statements, interest certificates, capital gains statements if applicable, Aadhaar card, PAN card, and details of investments under Section 80C, 80D and other deductions. Keep all salary slips, rent receipts, and home loan certificates ready for accurate filing.

What is the penalty for late ITR filing?

Under Section 234F, a late filing fee of up to ₹5,000 applies if your taxable income exceeds ₹5 lakh, and ₹1,000 if income is below ₹5 lakh. Additionally, interest at 1% per month is charged under Section 234A from the due date until filing. Filing after the deadline also means you cannot carry forward business or capital losses except house property loss.

How do I e-verify my ITR after filing?

You can e-verify your ITR immediately after filing using Aadhaar OTP (if Aadhaar is linked to PAN), net banking through authorized banks, Electronic Verification Code (EVC) from your pre-validated bank or demat account, or Digital Signature Certificate (DSC). E-verification must be completed within 30 days of filing, otherwise you need to send a signed ITR-V to CPC Bengaluru by speed post.

Conclusion

Filing your ITR online for FY 2025-26 is straightforward when you follow the right steps and have all documents ready. Whether you're a salaried individual, business owner, or freelancer, understanding the process, deadlines, and requirements under Section 139 ensures smooth compliance and helps you avoid penalties. Remember to e-verify your return within 30 days and keep track of your acknowledgment number for future reference.

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