Form 16 Decoder & Explainer
Paste in your numbers or just click through every field on your actual Form 16 to see exactly what it means, in plain English — no tax jargon.
Your Salary & Deductions
Form 16 Explained: What Every Field Actually Means
Form 16 is the annual TDS (Tax Deducted at Source) certificate your employer is required to issue once tax has been deducted from your salary during the financial year. It's issued under Section 203 of the Income Tax Act, and it's the document most salaried employees in India lean on when filing their Income Tax Return.
It's also one of the most skimmed documents in the country. Most people glance at the total figure at the bottom, confirm it roughly matches what they expected, and move on without reading the rest. That's a missable habit, because the rest of the document is exactly where errors, mismatches, and missed deductions tend to hide.
This guide walks through every section of Form 16 in plain language. If you'd rather work through your own copy interactively, our free Form 16 Decoder tool lets you click through each field and check your actual numbers.
The Two Parts of Form 16, and Why the Difference Matters
Form 16 is divided into two genuinely distinct parts, generated by two different processes, which is exactly why understanding the difference between them matters.
| Part A | Part B | |
|---|---|---|
| Who generates it | Downloaded by your employer from the government's TRACES portal | Prepared directly by your employer, as an annexure to Part A |
| What it contains | PAN/TAN details, employment period, quarterly TDS summary | Full salary breakup, exemptions, deductions, and final tax computation |
| Why it matters | It's the government-verified portion, carrying a unique certificate number | It's where your actual taxable income is calculated |
What's Actually Inside Part A
PAN and TAN of both parties
Your own PAN, plus your employer's PAN and TAN. A typo in your PAN here is the single most common reason TDS credit fails to reflect correctly.
Assessment Year and employment period
The Assessment Year is always one year after the financial year the income was earned in. The employment period covers only the time you worked for that specific employer.
Quarterly TDS deducted and deposited
A breakdown across all four quarters of the financial year, which should match what shows up in your Form 26AS.
The unique certificate number
This is what confirms Part A is the government-verified portion, generated through TRACES rather than created independently.
What's Actually Inside Part B
Part B is where the real computation happens — this is the section that actually explains how your taxable income and tax liability were arrived at.
Gross Salary
Your total salary before any exemptions or deductions, including basic pay, allowances, and taxable perquisites.
Exemptions Under Section 10
Most commonly HRA (under Section 10(13A)) and LTA. These largely disappear if you're on the new tax regime, since most Section 10 exemptions aren't available under it.
Standard Deduction
A flat deduction available to all salaried employees regardless of regime, requiring no investment proof.
Deductions Under Chapter VI-A
This is where Section 80C, 80D, and 80CCD(1B) deductions appear, assuming you're on the old tax regime and have submitted the relevant proofs to your employer.
Net Taxable Income and Final Tax Computation
The figure left after all exemptions and deductions, and the resulting tax liability compared against what was actually deducted through the year.
"Gross salary is not your taxable salary, and your CTC is neither. Form 16 Part B exists specifically to walk you through the gap between those numbers."
WorkRightsIndiaWhen You're Supposed to Receive It
Employers are legally required to issue Form 16 to employees they've deducted TDS from by a fixed annual deadline.
A late or missing certificate attracts a penalty of ₹100 per day under Section 272A(2)(g)
The Renaming You'll See Mentioned: Form 16 Becoming Form 130
Under the Income Tax Act, 2025, which came into force on April 1, 2026, Form 16 is being renumbered as Form 130, effective from Tax Year 2026-27 onward.
You'll still receive it as Form 16
This filing cycle, the one ending June 15, 2026, still operates entirely under the existing Form 16 framework and the 1961 Act's section numbering.
The same certificate, under a new name
The structure, purpose, and how you use it for filing remain the same — only the form number and underlying section references change.
The Cross-Check That Matters Most: Form 26AS and AIS
Form 16 is prepared by your employer, but it isn't the final word on what the government has on record for you. That's what Form 26AS and the Annual Information Statement (AIS) are for.
If You Changed Jobs During the Year
This is one of the most common sources of confusion and, occasionally, an unexpected tax bill.
A separate Form 16 from each employer
Every employer who deducted TDS during the year issues their own certificate, covering only the period you worked there.
Duplicated exemptions across both certificates
If both employers independently applied the standard deduction or similar exemptions without knowing about your other employer, you may owe additional tax at filing time that wasn't fully captured by either employer's TDS.
Common Errors Worth Catching Early
| Error | Why It Happens |
|---|---|
| PAN mismatch | A typo during payroll data entry, or an outdated PAN on file |
| Gross salary mismatch between Part A and Part B | Mid-year salary structure changes that weren't fully reconciled before the certificate was generated |
| Wrong tax regime reflected | Part B prepared under a different regime than the one you actually opted for, often after switching mid-year |
| Missing HRA or other exemptions | Investment proofs submitted late, or simply not reflected before Part B was finalised |
Frequently Asked Questions
What to Do Right Now
- Use the interactive decoder to go field by field through your own Form 16, rather than skimming straight to the total.
- Cross-check your TDS total against Form 26AS / AIS on the income tax portal before you file.
- If you changed jobs this year, collect a Form 16 from every employer and check for duplicated exemptions before filing.
The One Line to Remember
Form 16 isn't just a number to glance at — it's a two-part explanation of exactly how your taxable income was calculated. Reading it properly, once, makes every future filing season faster and considerably less error-prone.
This article is for informational purposes only and does not constitute tax advice. Form 16 rules, deadlines, and the underlying Income Tax Act 2025 transition are subject to change. For advice specific to your situation, consult a qualified chartered accountant. Information in this article is current as of June 2026.