10 Things to Check Before Filing ITR for AY 2026-27

Filing your Income Tax Return (ITR) for AY 2026-27 is more than just uploading Form 16 and clicking submit. With tighter reporting norms, expanded Annual Information Statement (AIS) tracking, and increased scrutiny of deductions and capital gains, taxpayers must verify every detail carefully before filing. Missing a small mismatch can delay refunds, trigger notices, or force you to file a revised return later.

This detailed AY 2026-27 ITR filing checklist India guide covers the 10 most important things taxpayers should verify before submitting their return for FY 2025-26. Whether you are a salaried employee, freelancer, investor, or business owner, these checks can help you avoid common mistakes while filing ITR AY 2026-27.

1. Choose the Correct ITR Form for AY 2026-27

Selecting the wrong ITR form is one of the most common mistakes while filing ITR AY 2026-27. The Income Tax Department can mark your return defective under Section 139(9) if the incorrect form is used.

Here are the commonly used ITR forms for AY 2026-27:

• ITR-1 (Sahaj):

  • Salaried individuals
  • One house property
  • Total income up to ₹50 lakh
  • Agricultural income up to ₹5,000

• ITR-2:

  • Capital gains
  • Multiple house properties
  • Foreign assets/income

• ITR-3:

  • Business or professional income

• ITR-4 (Sugam):

  • Presumptive taxation under Sections 44AD, 44ADA, or 44AE

Always check the latest eligibility conditions on the Income Tax e-Filing Portal.

Example

If you sold shares or mutual funds during FY 2025-26, you generally cannot use ITR-1 even if your salary income is below ₹50 lakh.

2. Verify Form 16, AIS, and Form 26AS Carefully

One of the biggest triggers for tax notices is AIS and Form 26AS mismatch in ITR filing. The Income Tax Department now cross-checks your return against multiple data sources including:

• AIS (Annual Information Statement)
• TIS (Taxpayer Information Summary)
• Form 26AS
• Bank reporting
• Mutual fund and broker reporting

Download and compare all records before filing:

• AIS and TIS
• Form 26AS

What you should verify

• Salary income matches Form 16
• TDS deducted by employer appears correctly
• Interest income from FD and savings accounts
• Share and mutual fund transactions
• High-value transactions
• Foreign remittances
• GST turnover for business taxpayers

Common mismatch example

A taxpayer reports ₹25,000 bank interest, but AIS reflects ₹42,000 because another FD was omitted. This can lead to an automated notice.

3. Compare New Tax Regime vs Old Tax Regime AY 2026-27

The new tax regime continues as the default regime under Section 115BAC for AY 2026-27. However, many taxpayers still benefit more from the old regime after deductions.

New tax regime highlights

As per the Union Budget updates and current slab structure:

• Standard deduction available
• Lower tax slab rates
• Limited deductions allowed
• Rebate under Section 87A available subject to income limits

Old tax regime benefits

You can claim deductions such as:

• Section 80C
• Section 80D
• HRA exemption
• Home loan interest
• LTA
• NPS deductions

Quick comparison example

Suppose your salary is ₹14 lakh.

• Under the new regime, lower slab rates may reduce tax.
• Under the old regime, if you claim:
  • ₹1.5 lakh under Section 80C
  • ₹75,000 under Section 80D and NPS
  • ₹2 lakh home loan interest

The old regime could become more beneficial.

Use the official tax calculator on the Income Tax Portal.

4. Keep All Documents Required for ITR Filing FY 2025-26 Ready

Before starting your return, collect all relevant records. Missing documents often leads to incorrect reporting.

Essential documents required for ITR filing FY 2025-26

• PAN and Aadhaar
• Form 16
• Salary slips
• Bank statements
• Interest certificates
• Form 26AS
• AIS/TIS reports
• Home loan certificate
• Capital gains statement
• ELSS and PPF investment proofs
• Insurance premium receipts
• Donation receipts
• Rent receipts
• GST returns for businesses

For investors

You should also download:

• Broker P&L statements
• Mutual fund capital gains statements
• Dividend reports

5. Report Capital Gains Correctly

Taxpayers often struggle with how to report capital gains in ITR India, especially after multiple changes in taxation rules for equity, debt funds, and property transactions.

You must separately report

• Short-term capital gains (STCG)
• Long-term capital gains (LTCG)
• Equity transactions
• Mutual funds
• Property sales
• Crypto or virtual digital assets

Important checks

• Match broker statements with AIS
• Include grandfathering calculations where applicable
• Report STT-paid equity transactions correctly
• Claim indexation only where allowed

Example

If you sold equity shares with LTCG of ₹1,80,000:

• ₹1,00,000 exemption may apply under Section 112A subject to prevailing rules
• Remaining ₹80,000 may be taxable

Use Schedule CG carefully while filing ITR-2 or ITR-3.

6. Claim Section 80C and 80D Deductions Properly

Incorrect deduction claims are a major reason for scrutiny notices. Verify eligibility before claiming deductions.

Section 80C deductions for AY 2026-27

Maximum deduction: ₹1.5 lakh

Eligible investments include:

• EPF
• PPF
• ELSS
• Life insurance premiums
• Tax-saving FD
• Principal repayment on home loan
• Sukanya Samriddhi Yojana

Section 80D deductions for AY 2026-27

Medical insurance deduction limits:

• ₹25,000 for self and family
• Additional ₹25,000 for parents
• ₹50,000 for senior citizen parents

Common mistakes

• Claiming deductions not reflected in salary records without proof
• Claiming children's tuition fees incorrectly
• Claiming health insurance paid in cash

Check deduction rules on the Income Tax Department website.

7. Verify Bank Account and Refund Details

Many refunds get delayed because taxpayers enter incorrect bank details.

Before filing:

• Pre-validate your bank account
• Verify IFSC code
• Ensure PAN is linked
• Confirm the account is active

You should also check whether your refund account is selected correctly on the e-filing portal.

Why this matters

If your refund of ₹38,500 is sent to a closed bank account, the refund process may get delayed significantly.

8. Disclose All Income Sources

Many taxpayers focus only on salary and forget other taxable income sources.

Income commonly missed

• Savings account interest
• FD interest
• Freelance income
• Dividend income
• Rent income
• Foreign income
• Cryptocurrency gains

Banks and financial institutions report many transactions directly through AIS. Non-reporting increases the chance of receiving compliance notices.

Example

A salaried employee earns:

• ₹12 lakh salary
• ₹18,000 savings interest
• ₹46,000 FD interest
• ₹72,000 freelance income

All components must be disclosed in the return.

9. Check Updated ITR Filing Rules and Due Dates AY 2026-27

Taxpayers should track the latest updated ITR filing rules and due dates AY 2026-27 because timelines and compliance requirements may change through CBDT notifications.

The standard due dates generally remain:

• 31 July 2026:

  • Individuals not requiring audit

• 31 October 2026:

  • Audit cases

• 30 November 2026:

  • Transfer pricing cases

Late filing can result in:

• Late filing fee under Section 234F
• Interest under Sections 234A, 234B, and 234C
• Loss adjustment restrictions

Monitor updates through the CBDT website.

Revised return timeline

If you discover errors later, you can file a revised return within the permitted timeline under Section 139(5).

10. Complete the Income Tax Return Verification Process India Requires

Many taxpayers assume filing is complete after submission. However, your return is treated as invalid unless verified.

The income tax return verification process India follows can be completed online or offline.

E-verification options

• Aadhaar OTP
• Net banking
• Bank account EVC
• Demat account EVC

Offline option

You can send signed ITR-V to CPC Bengaluru within the prescribed time if e-verification is not completed.

Important point

If you fail to verify your return, the department may treat it as not filed.

Additional Tips for ITR Filing for Salaried Employees AY 2026-27

Cross-check HRA exemption

Ensure:

• PAN of landlord is available where required
• Rent receipts are maintained
• HRA exemption calculation is correct

Verify TDS on salary

Employers sometimes deduct lower or excess TDS due to declaration mismatches.

Report foreign assets if applicable

Resident taxpayers with foreign investments or accounts must disclose them in Schedule FA.

Common Questions Taxpayers Ask Before Filing ITR

Is AIS mandatory for ITR filing?

AIS itself is not mandatory, but taxpayers should reconcile all entries before filing because the department uses AIS data for verification.

Can I switch between old and new tax regime?

Salaried individuals can generally choose annually. Business taxpayers have more restrictions under Section 115BAC.

What happens if I miss reporting interest income?

The department may issue a mismatch notice because banks report interest income directly.

Should I file ITR even if income is below taxable limit?

You may still benefit from filing if:

• TDS was deducted
• You need visa documentation
• You want loss carry-forward
• You need loan proof

Final Checklist Before Clicking Submit

Before final submission, confirm these points:

1. Correct ITR form selected
2. AIS, Form 26AS, and Form 16 reconciled
3. Tax regime compared properly
4. All deductions supported with proof
5. Capital gains reported accurately
6. Bank details validated
7. All income sources disclosed
8. Due dates checked
9. Tax paid fully including self-assessment tax
10. ITR verified successfully

Filing your return carefully can help you avoid notices, delayed refunds, and unnecessary revisions later. Use this AY 2026-27 ITR filing checklist India guide to review every important detail before submission. With tighter compliance tracking and expanded AIS reporting, accuracy matters more than ever while filing your ITR for FY 2025-26.