Submitting Income Tax Return is an annual task of every taxpayer living in India, but errors are noticed after filing. These errors include missing income, wrong entries of TDS, wrong bank details or skipped deductions. Many people retain memory of some of the entries only when they look into Form 26AS or AIS. Business owners also see discrepancies when the revenue or expense records are disconnected.
The good news is the system can make corrections with no stress if done in time. The majority of the fixes require a simple revised filing or online request. This blog explains each correction method clearly so that no confusion occurs and the taxpayers will keep clean records.
When a Filed Return Can Be Corrected?
Indian tax law provides that taxpayers can correct most of the mistakes before the end of the assessment year. This rule is to help the individuals, firms and small traders to avoid future disputes.
Common Errors That Need Correction
- Wrong name, PAN, Aadhaar address
- Lost income due to interest, rent or business
- Incorrect TDS information
- Omitted deductions of common sections
- Bank account mismatch leading to delay in refunds

Examples
A textile merchant in Surat may not care about the fact that there is no interest on a cancelled loan. A cafe in Mumbai may forget about revenue from delivery platforms. A contractor in Hyderabad may find a difference once he has checked AIS. These situations are normal and them solvable.
Types of Errors and How to Fix Them
1. Errors in Personal Information
Mistakes in names, bank accounts or contact details. This does not affect tax calculations but does delay refunds or communication.
How to correct:
- File a revised file with correct information
- Pre-Validate the correct bank account on the portal.
- Make sure to change the email and mobile number.
2. Errors in Income Reporting
A business owner in Kolkata can generate income and forget interest on savings accounts. A self employed professional might find that his/her unreported foreign income appeared in AIS.
Correction steps:
- Compare records Form 26AS and AIS.
- Update income details.
- File an amended return displaying duly corrected figures.
Having both documents the same will prevent demand notices and confusion.
Using a Revised Return for Corrections
A revised income tax return helps the taxpayers correct most of the mistakes they have committed in the original filing.
When a Revised Return Should Be Filed?
- Income mismatch
- Wrong deduction claims
- TDS errors
- Missed disclosures
- Changed figures following records discontinued
Filing Steps
- Log in to income tax portal.
- Select "File Revised Return"
- Enter a space and enter the original acknowledgement number.
- Make some corrections in all entries updated.
- The verification can be done through Aadhaar OTP, EVC or DSC.
Important Points
- A revised return is a complete replacement of the original.
- It should be submitted prior to the end of the year of assessment.
- Refund timelines may change.
- Details must be accurate as multiple revision makes things less reliable.
Responding to Portal Mismatches
The portal occasionally conveys any discrepancies between what the taxpayers filed and what is present in Form 26AS or AIS. These differences can be seen frequently while processing in the income tax return.
How to Respond to a Mismatch?
- Review Form 26AS, AIS and own records.
- Correct your return if the data in the portal is correct.
- Raise a grievance with supporting documents if portal being wrong.
- File revised return when your data need to be updated.
Why Immediate Action Helps?
- Prevents further notices.
- Maintains refund date schedules.
- Reduces possibility of disputes during assessments.
Fixing Missed Deductions
Many taxpayers do not remember the deduction and only remember them after filing the assesin. A business in Chennai might forget about the Section 80D payments. A family-run store in Pune may miss out on interest information in home loans.
Steps to Fix Missed Deductions
- Include the deduction in a revision return
- Recalculate taxable income
- Keep all document ready in case of future queries
Examples from Indian Businesses
- A consultancy firm discovers that it paid professional tax but forgot to pay it in the original file.
- A retailer realizes that certain business expenses were eligible for deductions but were not recorded previously.
When Can You Not Revise a Return?
If the period of revision passes, corrections are limited. Still, there are two valid options available for the income tax return.
1. Updated Return
This option is used when taxpayers want to report an additional income. It cannot reduce tax.
Used for:
- Missed income
- Under-reported figures
- Errors found much later
2. Rectification Request
The rectification is done when the system miscalculates tax or mismatches with the entries of TDS.
Suitable for:
- Errors during portal processing
- Incorrect TDS credit mapping
- Issues in refund adjustments
Not suitable for:
- Missing income
- Missed deductions
- Incorrect manual entries in the original filing
Conclusion
Correcting mistakes in an Income Tax Return is easy if the taxpayers know the proper way to do it. Most errors can be corrected by revision and filing updates as long as they are corrected in the allowed time frames. Indian taxpayers often get to know of the missed entries while checking their Form 26AS, AIS or Bank Statements. To take action early and avoid unnecessary notices, and to make sure refunds are transferred to the right bank account.
A careful look into income, deductions and TDS records ensures taxpayers in case of assessments. When records are kept clean and updated throughout the year, the filing process is seamless and stress-free and future corrections are few and easy.
