ITR Filing Documents Required & Complete Guide
Filing an Income Tax Return (ITR) is mandatory for individuals whose income exceeds the basic exemption limit, and is useful even below that limit for loan applications, visa processing, and claiming refunds. Having the right documents ready before you start filing prevents errors and missed deductions. This guide lists everything you need to file an accurate ITR.
Documents to Prepare
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What is ITR Filing?
Filing on time avoids late fees, keeps your PAN active, and is often required as proof of income for loans, credit cards, and visa applications.
Documents Required for ITR Filing
Income Documents - As applicable
- Form 16 (issued by employer, for salaried individuals)
- Form 16A/16B/16C (for TDS on non-salary income)
- Bank interest certificates (savings and fixed deposits)
- Rental income receipts and municipal tax records (if applicable)
- Capital gains statement from your broker or mutual fund house
Identity & Linking Documents
- PAN Card
- Aadhaar Card (must be linked to PAN)
- Bank account details for refund (account number and IFSC)
Deduction Proofs - Any applicable
- Section 80C: LIC premium receipts, PPF passbook, ELSS statement, tuition fee receipts
- Section 80D: Health insurance premium receipts
- Home loan interest certificate (Section 24) and principal repayment (Section 80C)
- Donation receipts eligible under Section 80G
File Format & Upload Requirements
- Form 16 and statements: Keep as PDF for your own records; usually not uploaded directly.
- Digital Signature (if used): .pfx format, required only for certain categories such as companies and audited firms.
- Verification: Most individuals verify using Aadhaar OTP e-Verification instead of uploading a signed physical copy.
Step-by-Step Filing Process
Log in to the e-filing portal (incometax.gov.in) using your PAN.
Select the correct ITR form based on your income sources.
Review the pre-filled data (salary, TDS, interest) pulled from your Form 26AS and AIS.
Add any missing income and claim eligible deductions using your proofs.
Compute the final tax payable or refund, and pay any balance tax due.
Submit the return and complete e-Verification using Aadhaar OTP within 30 days.
Common Mistakes That Cause Rejection or Notices
Mismatch with Form 26AS/AIS
Income or TDS entered manually that does not match the department's records often triggers a notice.
Wrong ITR Form
Filing ITR-1 when you have capital gains or foreign income, for example, makes the return defective.
Skipping e-Verification
A return that is filed but not verified within 30 days is treated as not filed at all.
Unreported Interest Income
Savings account and fixed deposit interest is commonly missed but is fully taxable and visible to the department via AIS.
Processing Time & Fees
- Filing on the official portal: Free.
- Late filing fee: ₹1,000 to ₹5,000 depending on income level and delay, if filed after the due date.
Processing Time:
- Refunds are typically processed within 4 to 6 weeks of e-Verification.
Frequently Asked Questions
Is filing ITR mandatory if my income is below the exemption limit?
Not always, but it is required in specific cases such as high-value foreign travel, large deposits, or if you want to claim a refund or carry forward a loss.
What happens if I miss the ITR deadline?
You can still file a belated return before the extended deadline, subject to a late fee, but you may lose the ability to carry forward certain losses.
Can I file ITR without Form 16?
Yes, using your salary slips, bank statements, and Form 26AS or AIS, though Form 16 makes the process significantly easier.
Is Aadhaar-PAN linking mandatory to file ITR?
Yes, an unlinked PAN becomes inoperative, which blocks e-filing and refund processing.
How do I check my refund status?
You can track it on the e-filing portal under "Refund/Demand Status" using your PAN and assessment year.