Form 16 Explained: What Part A and Part B Actually Mean
Every June, a PDF arrives in a salaried professional’s inbox — two parts, a dozen columns, numbers that don’t map to anything on their salary slip. It gets downloaded, maybe renamed, and placed in a folder called “Tax Docs 2026.” Then the ITR gets filed anyway, usually by a Chartered Accountant (CA) or a portal that pre-fills most of the form.
But this document decides whether you pay more tax, get a refund, or sail through without a notice. What Part A and Part B each contain — and why they must agree — is the difference between a clean ITR and a demand notice six months later.
The one-line version: Form 16 is a Tax Deducted at Source (TDS) certificate your employer issues after the financial year ends. Part A proves the TDS was deposited with the government. Part B shows how your salary was computed into a taxable figure. So together, they give you everything needed to file your Income Tax Return (ITR) — but only if both parts are accurate and match your Form 26AS.
✅ Quick self-check — is your Form 16 actually correct?
- Does the Part A total match your Form 26AS? If your payslips show TDS deducted every month but Form 26AS shows less, the money hasn’t been deposited with the government yet — regardless of what your salary slip says.
- Did you submit every investment proof by your employer’s January deadline? If you declared more than you actually invested, Part B will show the lower, corrected figure — and any shortfall was already recovered from your Jan–Mar salary.
- Do you have investments your employer doesn’t know about? Direct ELSS purchases, personal NPS contributions, PPF deposits not submitted as proof — none of these show up in Form 16, but all of them are still claimable in your ITR.
If you answered “not sure” to any of these, the sections below walk through exactly where to check and what to do about it.
1Who Gets Form 16 — and Who Does Not
The basic rule
Form 16 for FY 2025-26 (AY 2026-27) — the certificate arriving in your inbox this June — is issued under Section 203 of the Income-tax Act, 1961. It’s mandatory for any employer who deducted TDS from an employee’s salary during the financial year.
When your employer can skip it
The threshold that trips people up: if your employer deducted zero TDS — because your total taxable income fell below the tax threshold — the employer isn’t technically required to issue Form 16. Many issue it anyway as a salary summary document. But legally, Form 16 is a TDS certificate, not a salary certificate, so no TDS means no obligation.
If you changed jobs mid-year
You’ll receive two Form 16s — one from each employer, each covering only its period of employment. Your ITR must consolidate both. Leaving out one employer’s Form 16 is one of the most common reasons for a demand notice after filing.
2Part A vs Part B — What Each Document Actually Contains
Form 16 is a single document but has two distinct parts with different sources, different purposes, and different levels of trust. Part A is downloaded by your employer from TRACES — the Income Tax Department’s TDS Reconciliation Analysis and Correction Enabling System, the government portal that tracks TDS deducted and deposited across the country. So understanding which part does what is the whole job.
What Part A contains
What Part B contains
3When Form 16 Arrives — and the Three Deadlines That Matter
Form 16 for FY 2025-26 (Assessment Year 2026-27) must be issued by your employer by June 15, 2026, under Rule 31(3) of the Income-tax Rules, 1962. Before that, the employer must first file their Q4 TDS return (Form 24Q) — due May 31, 2026 — since TRACES processes that return and only then makes Part A available for download. So an employer who files Form 24Q late simply cannot issue a correct Form 16 on time.
What happens if your employer misses the deadline
The full-year timeline
Form 16 and ITR — The Full Year Timeline, FY 2025-26 / AY 2026-27
4Where Form 16 Fits — Salary Slip, Form 26AS, and AIS
Form 16 does not exist in isolation. It sits alongside three other documents that must tell a consistent story about your income and tax for the year. When they conflict, the return gets scrutinised.
Four Documents, One Story — What Each Covers
Your Documents
- Salary slips — monthly gross and deductions, including TDS per month. Sum of 12 monthly TDS figures should equal Form 16 Part A total.
- Form 16 — the year-end certificate. Part A: confirmed TDS. Part B: taxable salary computation. The ITR input document.
Government Documents
- Form 26AS — tax credit statement from the Income Tax Department. Shows TDS from all sources (salary, bank, freelance, rent received). Part A of Form 16 must match the salary TDS row here.
- AIS — Annual Information Statement. More detailed than 26AS. Includes dividends, mutual fund transactions, property sales, foreign remittances. Available at incometax.gov.in.
5Why the Taxable Income Figure in Part B May Surprise You
The taxable income figure in Form 16 Part B is built from your employer’s records — specifically, the investment declaration you submitted in April, and the actual proofs you submitted by January. If those two inputs were different, and many are, the final TDS and taxable income calculation may not match your own expectation.
Three specific scenarios produce a number that looks wrong but is actually correct:
You declared more than you invested
If you declared ₹1.5 lakh in 80C investments in April but only invested ₹90,000 by January, your employer recalculated TDS in the last quarter to recover the shortfall. So the Form 16 Part B will show ₹90,000 in 80C, not ₹1.5 lakh — which is accurate. The ITR should reflect actual investments, not declared ones.
You made investments your employer doesn’t know about
Equity Linked Savings Scheme (ELSS) units bought directly through a broker in March, a National Pension System (NPS) contribution made personally, a PPF deposit not submitted as proof — none of these appear in Form 16. But they can still be claimed in your ITR. Form 16 Part B is only the employer’s view of your deductions, not the complete picture of what you’re entitled to claim.
Your HRA exemption was underclaimed
If you submitted rent receipts late or for partial months, the employer computed a lower HRA exemption than you were actually entitled to. In that case, you can claim the correct, higher exemption directly in your ITR — the ITR is the final word, not the Form 16.
6Two Worked Examples — Reading Part A and Part B Together
The reconciliation logic is easier to see with real numbers. Both examples below use the FY 2025-26 slab rates and Section 87A rebate — the same figures the calculator in the next section uses.
Example 1 — Old Regime, Taxable Income ₹8,50,000
Form 16 Part B shows a taxable income of ₹8,50,000 under the old regime, after standard deduction and Chapter VI-A deductions. Form 16 Part A shows ₹78,000 TDS deducted across the year.
| Tax on ₹8,50,000 (old regime slabs: nil to ₹2.5L, 5% ₹2.5–5L, 20% ₹5–8.5L) | ₹82,500 |
| Add 4% health and education cess | ₹3,300 |
| Total tax liability | ₹85,800 |
| TDS already deducted (Form 16 Part A) | ₹78,000 |
| Tax demand at ITR time | ₹7,800 |
This ₹7,800 needs to be paid as self-assessment tax before filing — it isn’t something to leave for the tax department to catch. It typically means the investment declaration submitted in April was slightly higher than what was actually invested by January, so the employer’s TDS calculation came in a little short.
Example 2 — New Regime, ₹12,25,000: Where Marginal Relief Changes the Answer
This is the income band most reconciliation checks get wrong. Form 16 Part B shows taxable income of ₹12,25,000 under the new regime — just above the ₹12 lakh full-rebate threshold. Form 16 Part A shows ₹45,000 TDS deducted.
| Tax on ₹12,25,000 at slab rates, before any relief | ₹63,750 |
| Amount by which income exceeds ₹12,00,000 | ₹25,000 |
| Tax after marginal relief (capped at the excess above ₹12L) | ₹25,000 |
| Add 4% health and education cess | ₹1,000 |
| Total tax liability | ₹26,000 |
| TDS already deducted (Form 16 Part A) | ₹45,000 |
| Refund due at ITR time | ₹19,000 |
7TDS Reconciliation — Check Your Form 16 in 2 Minutes
Enter the key figures from your Form 16 to check whether you should expect a refund, owe additional tax, or break even at ITR time. This catches discrepancies before you file.
Form 16 TDS Reconciliation Check
8How to Use Form 16 to File Your ITR — Step by Step
Before you start
- Download Form 26AS and AIS first. Log into incometax.gov.in with your PAN and password. Go to e-File → Income Tax Returns → View Form 26AS. Then cross-check the TDS amount shown under “TDS from salary” against Form 16 Part A total. If they differ by more than a rounding amount, don’t file until the employer corrects Form 24Q.
- Verify your PAN on Form 16 Part A. One wrong digit means the TDS credit sits in the wrong account. If the PAN is wrong, the employer must file a correction with TRACES — this takes time, so catch it in June, not July.
Filling in the return
- Pick up the taxable income from Part B. In ITR-1 or ITR-2, the “Income from Salary” figure comes from Part B of Form 16 — specifically the line that reads “Income chargeable under the head Salaries.” Enter this number, not gross salary.
- Add any deductions not reflected in Form 16 Part B. Check your actual investment receipts against what Part B shows. PPF passbook, ELSS statements, NPS contribution receipts, 80D premium certificates — anything you hold but didn’t submit to your employer can be added directly in the ITR under the relevant section.
- Enter TDS from Part A as advance tax credit. The ITR’s TDS section asks for the TDS credit to offset against your final tax liability. Enter the amount from Form 16 Part A, and the system will cross-check this against Form 26AS automatically.
Before you submit
- Verify the refund or tax payable figure before submitting. The ITR portal computes final liability. If it shows a refund — because your actual deductions are higher than what the employer computed — that refund is processed after the return is verified and assessed. But if it shows a demand, because your employer under-deducted TDS, pay it before submitting to avoid interest under Section 234B.
Form 16 is not a formality. Part A tells you what the government has on record for your TDS, and if that number doesn’t match Form 26AS, you have a problem that needs fixing before July 31, not after. Part B tells you how your employer computed your tax liability, which is a starting point rather than a ceiling — every investment you made directly, every deduction your employer didn’t capture, is still claimable in the ITR. Think of the document that arrives in June as the map, and the ITR you file in July as the journey: check the map before you set off. In short, Form 16 is a bit like a bank statement. It tells you what moved, not what you’re entitled to. The entitlement part is the return you file.
❓ Frequently Asked Questions
The basics
Form 16 is a TDS certificate issued by your employer confirming how much tax was deducted from your salary and deposited with the Income Tax Department. It has two parts — Part A (TDS deposited, sourced from TRACES) and Part B (salary and taxable income computation). The ITR uses Part B for the income figure and Part A for the TDS credit. Without Form 16, you would need to reconstruct both figures from salary slips and Form 26AS manually.
Part A is downloaded by the employer from the TRACES portal and contains the official record of TDS deducted and deposited with the government, quarter by quarter — it can’t be manually altered. Part B, on the other hand, is prepared by the employer and contains the full salary computation: gross salary, exemptions, deductions, and taxable income. So Part A proves the TDS happened, while Part B shows why the TDS was that amount.
Deadlines and mismatches
Your employer is required to issue Form 16 by June 15 of the Assessment Year. For FY 2025-26 (AY 2026-27), that deadline is June 15, 2026. The employer can only issue Part A after filing the Q4 TDS return (Form 24Q) by May 31. So if you haven’t received Form 16 by mid-June, follow up with your payroll team immediately — the ITR deadline of July 31 doesn’t move to accommodate a late Form 16.
This means TDS was deducted from your salary but the government’s records don’t show the full deposit — usually because the employer filed Form 24Q with an error or hasn’t deposited the TDS yet. Raise it with your payroll team immediately, since the employer must file a correction to Form 24Q. Don’t file your ITR until the mismatch is resolved: the Income Tax Department will deny the TDS credit shown on Form 16 if Form 26AS doesn’t confirm it.
Claiming more, and multiple employers
Yes. Form 16 Part B reflects what your employer computed based on your investment declarations and submitted proofs. Any investment you made directly — PPF deposits, ELSS purchases through a broker, NPS contributions, 80D premiums — that you didn’t submit to your employer can still be claimed in the ITR, since the ITR is the final computation, not Form 16.
You must include income and TDS from both in your ITR. Each Form 16 covers only the period of employment with that employer, and the ITR consolidates both. Omitting one employer’s income is a common reason for demand notices, because the Income Tax Department sees both sets of TDS credits in Form 26AS regardless of what you declare.
Related forms
No. Form 16 is a TDS certificate specifically for salary income — issued by employers. Form 16A is a TDS certificate for non-salary income — issued by banks for interest TDS, by companies for contractor payment TDS, or by any party who deducted TDS on payments other than salary. If TDS was deducted on your savings account interest, your bank will issue a Form 16A, not a Form 16. Under the Income-tax Act, 2025, Form 16A is renumbered Form 131 from Tax Year 2026-27 onward — this year’s certificate is still Form 16A.
Technically yes — if no TDS was deducted because your taxable income was below the tax threshold, the employer has no legal obligation to issue Form 16. Even so, you should still check Form 26AS and AIS at incometax.gov.in to confirm the income tax department has received any TDS from other sources. You may still need to file an ITR depending on your total income and other conditions.
Verification and what’s changing
Yes. Go to traces.gov.in → Verify TDS Certificate. Enter the certificate number from Form 16 Part A, your TAN, PAN, and the assessment year. The system confirms whether the certificate was genuinely downloaded from TRACES. Any Form 16 Part A that wasn’t downloaded from TRACES — or whose certificate number doesn’t verify — isn’t a valid document for ITR filing purposes.
Yes, but not for this year’s certificate. Under the Income-tax Act, 2025 and the Income-tax Rules, 2026 (effective 1 April 2026), Form 16 is renumbered as Form 130. This applies from Tax Year 2026-27 onward, so your first Form 130 arrives in June 2027, for income earned in FY 2026-27. The certificate arriving in June 2026, for FY 2025-26, is still Form 16 under Section 203 of the Income-tax Act, 1961.
Under Section 272A(2)(g) of the Income-tax Act, 1961, an employer who issues Form 16 after June 15 faces a penalty of ₹500 per day, per certificate, for every day the delay continues — capped at the amount of tax deductible for that employee. This penalty is the employer’s liability, not the employee’s, and doesn’t affect your ability to file your own ITR on time using salary slips and Form 26AS in the meantime.
Worth bookmarking — revisit this if any of these happen
A job change mid-year means two Form 16s to reconcile. Switching between the old and new tax regime at the start of a financial year changes what Part B should show. So does a mismatch notice referencing Form 26AS — or simply every June, when the new certificate lands. None of these situations resolve themselves, so rerun the reconciliation check above each time.
📖 Read These Next
Why Your ₹75,000 CTC Pays You Only Around ₹65,000 Take-Home
The TDS deducted each month is one of five reasons your take-home doesn’t match your offer letter.
EPF Contribution: Why ₹4,800 Leaves Your Salary Before You Even See It
EPF appears on Form 16 Part B as an 80C deduction — here’s exactly how much it covers.
Old Tax Regime vs New Tax Regime: Which One Saves You More in 2026?
Form 16 Part B only shows deductions under the old regime — this breaks down which regime actually saves you more.
HRA Exemption: How Much of Your Rent Is Tax-Free in 2026?
If your Form 16 Part B doesn’t show an HRA exemption, here’s how much you might be able to claim directly in your ITR instead.
Sources
Income-tax Act, 1961 — Section 203 (obligation to furnish a TDS certificate) and Section 192 (TDS on salary income, Chapter XVII-B), the provisions governing Form 16 for FY 2025-26 (AY 2026-27). Full text: incometaxindia.gov.in — Income-tax Act, 1961.
Income-tax Rules, 1962 — Rule 31(1)(a) (prescribed format of Form 16) and Rule 31(3) (15 June deadline for issuance, following the 31 May due date for the Q4 Form 24Q return). Full text: incometaxindia.gov.in — Income-tax Rules, 1962.
Section 272A(2)(g), Income-tax Act, 1961 — penalty of ₹500 per day, per certificate, for late issuance of a TDS certificate, capped at the tax deductible.
Income-tax Act, 2025 (30 of 2025) and Income-tax Rules, 2026 — renumbering Form 16 as Form 130, Form 16A as Form 131, and Form 26AS as Form 168, effective Tax Year 2026-27 onward. Full text: incometaxindia.gov.in — Income-tax Act, 2025.
TRACES (TDS Reconciliation Analysis and Correction Enabling System) — the Income Tax Department’s official portal for Form 16/16A generation and TDS certificate verification: tdscpc.gov.in / traces.gov.in.
Income Tax Department e-filing portal — Form 26AS and Annual Information Statement (AIS): incometax.gov.in.
💬 Quick Question for You
When you received your last Form 16, did you actually compare the TDS total in Part A against your Form 26AS — or did you hand it straight to a CA without checking?