Quick answer: Form 16 is the TDS certificate your employer issues showing salary paid and tax deducted. Form 26AS is a consolidated tax credit statement issued by the Income Tax Department showing all tax deposited against your PAN, from all sources. Before filing your ITR, both documents should be compared line by line — if the TDS amount in Form 16 does not match the credit reflected in Form 26AS (and the Annual Information Statement), your return can face processing delays, notices, or a reduced refund.
Every year, thousands of salaried taxpayers file returns using only their Form 16, without checking Form 26AS. This is one of the most common reasons for income tax return filing errors, refund delays, and mismatch notices from the Income Tax Department. This guide explains what each form contains, why they need to be reconciled, and the exact steps our CA team follows while filing your return.
What is Form 16?
- Issued by your employer, usually by 15 June
- Part A: TAN/PAN details, tax deducted & deposited quarter-wise
- Part B: Salary breakup, exemptions, deductions (80C, 80D, HRA etc.)
- Acts as proof that TDS on your salary was actually deposited with the government
What is Form 26AS?
- A tax passbook maintained by the Income Tax Department against your PAN
- Shows TDS/TCS from all deductors — employer, bank, tenant, buyer of property, etc.
- Also shows advance tax and self-assessment tax paid
- Downloaded from the TRACES portal or the Income Tax E-Filing portal
Form 16 vs Form 26AS vs AIS — Key Differences
Since Assessment Year 2021-22, the Annual Information Statement (AIS) supplements Form 26AS with details of interest, dividends, mutual fund transactions, and high-value purchases. Here is how the three documents compare:
| Aspect | Form 16 | Form 26AS | AIS |
|---|---|---|---|
| Issued by | Employer | Income Tax Department | Income Tax Department |
| Covers | Salary income & TDS only | TDS/TCS & tax paid, all deductors | All income types, incl. interest, dividends, securities |
| Format | Part A + Part B | Parts A to G | Part A (general) + Part B (TDS/SFT) |
| Where to get it | From your employer/HR-payroll | TRACES / e-filing portal | e-filing portal, under "AIS" |
| Used for | Salary reporting in ITR | Verifying tax credit claimed | Cross-checking all reported income |
Why matching Form 16 and Form 26AS matters
- Avoids refund delays — mismatches trigger manual review by the CPC
- Prevents notices under Section 143(1) for tax credit mismatch
- Catches employer errors, such as TDS deducted but not deposited
- Confirms all TDS is claimed, including from banks, tenants, or property buyers
- Supports accurate reporting if you changed jobs during the year
How to File Your ITR Using Form 16 and Form 26AS
Here is the exact process our Chartered Accountants follow to reconcile both documents before submitting your return.
Download Form 16 from your employer
Request Part A and Part B from your HR/payroll team, usually available after 15 June for the previous financial year.
Download Form 26AS and AIS
Log in to the income tax e-filing portal, go to "Income Tax Forms" and download Form 26AS via TRACES, along with the AIS statement.
Match salary and TDS figures
Compare the gross salary, TDS deducted, and PAN details in Form 16 against the entries in Form 26AS for the same employer TAN.
Add other income and deductions
Include interest income, capital gains, rental income, and eligible deductions (80C, 80D, 80G etc.) confirmed from AIS and your investment proofs.
Resolve any mismatch
If TDS in Form 26AS is lower than Form 16, ask your employer to file/revise their TDS return before you file, to avoid a demand notice.
Select the correct ITR form
Choose ITR-1, ITR-2, or ITR-3 based on your income sources — our team confirms the right form for your case.
File and e-verify the return
Submit the ITR on the income tax portal and e-verify it within 30 days using Aadhaar OTP, net banking, or a Demat/bank EVC.
Why File Through SetupFiling.in
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What we check for every ITR
- Form 16 and Form 26AS/AIS reconciliation
- Correct ITR form selection
- All eligible deductions and exemptions claimed
- Old vs new tax regime comparison
- Accurate reporting of capital gains, if any
Explore more of our compliance services:
ITR Filing Pricing — Form 16 & Form 26AS Reconciliation Included
Choose the plan that matches your income sources. Every plan is handled by a qualified CA and includes matching your Form 16 with Form 26AS/AIS before filing.
Salaried – Basic
Single Form 16, one employer, no capital gains
- Form 16 review
- Form 26AS matching
- Old vs new regime comparison
- ITR-1 preparation & filing
- E-verification support
Business + Salary Income + Capital Gains
Form 16, business/professional income & capital gains, Form 26AS/AIS matched
- Everything in Basic
- Business/professional income reporting
- Capital gains computation (shares, mutual funds, property)
- AIS cross-verification
- Deduction optimisation (80C/80D/HRA)
Balance Sheet + Business Income + UDIN
Salary + business income with balance sheet & CA-certified UDIN
- Everything in the Business + Capital Gains plan
- Balance sheet & profit and loss preparation
- Business income computation
- CA-certified financials with UDIN
- ITR-3/ITR-4 filing, as applicable