Form 16: What It Is and How to Read It (2026)

If you earn a salary, Form 16 is probably the single most useful document you receive each year for your taxes. It is the certificate your employer gives you that sets out how much you were paid, how much tax was deducted from that pay, and how the taxable figure was worked out. When filing season arrives, Form 16 turns what could be a scramble through payslips into a mostly copy-and-check exercise. Yet many people never really read it and are unsure what its two parts mean. This guide explains what Form 16 is, how Part A differs from Part B, how employers issue it, and how to use it to file your income tax return with confidence.

What Form 16 is

Form 16 is a TDS certificate for salary. TDS stands for tax deducted at source, which is the tax your employer withholds from your salary each month and deposits with the government on your behalf. At the end of the financial year, the employer sums this up and issues Form 16 as proof that the deduction happened and the money was paid to the tax department under your PAN. In other words, it is the official record that ties your salary, the tax taken from it, and your identity together for the year. Only an employer who actually deducted TDS on your salary issues a Form 16, so if no tax was deducted you may not receive one.

Why it matters to you

Form 16 matters for two reasons. First, it is the backbone of your income tax return: almost every figure you need to report your salary income and the tax already paid sits inside it. Second, it is evidence. If there is ever a question about whether tax was deducted and deposited, Form 16 is your proof. Banks and other institutions also sometimes ask for it as evidence of income when you apply for a loan. Because it pulls together your salary and tax in one validated document, it saves you from reconstructing the year from a stack of payslips.

Part A and Part B explained

Form 16 comes in two parts that do different jobs. Understanding the split is the key to reading it:

Put simply, Part A proves how much tax was paid and when, while Part B explains how that tax figure was calculated from your salary. You need both to make full sense of your year.

A closer look at Part A

Part A is the compact, official-record half. When you open it, check these items first: your name and PAN, the employer's name and TAN, the assessment year, and the period you were employed with that employer. Below that sits the heart of Part A, the summary of tax deducted from your salary and deposited with the government, broken up by quarter. This is the number that should match your tax credit statement, the government's own record of tax credited against your PAN. If Part A and your tax credit statement agree, your TDS is properly on record. If they do not, that is the first thing to sort out with your employer, because the return you file relies on this credit.

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A closer look at Part B

Part B is where your salary is laid out in full and the tax is computed. It typically walks from the top down: your gross salary, then the allowances and exemptions that reduce it, then the deductions you are entitled to claim, arriving at your taxable income, and finally the tax on that income. This is the part you read most carefully at filing time, because the figures here become the entries in your return. If you claimed investments or other eligible deductions and told your employer in time, they should appear in Part B. If something you are entitled to is missing, you can still claim it when you file, but it is cleaner when Part B already reflects it.

How employers issue Form 16

Form 16 flows from the employer, and the timing follows the tax calendar. After the financial year ends, the employer files its TDS returns, and once those are processed it downloads Part A from the tax department's system, which is what validates it. Part B is prepared from your salary records for the year. The employer then issues both parts to you, commonly as a digital file. Because Part A depends on the employer having filed its returns correctly, a delay or error on their side can hold up your Form 16, so if you have not received it well after year end, a polite nudge to HR is reasonable. Employers who run payroll software usually generate the salary side of this automatically, which reduces mistakes.

Using Form 16 to file your ITR

When it comes time to file, Form 16 does most of the heavy lifting. The practical steps are:

Common points of confusion

A few things trip people up every year:

The bottom line

Form 16 is your employer's certificate of the salary you earned and the tax deducted on it, split into Part A, the validated tax summary, and Part B, the salary computation. Read both, match the TDS against your tax credit statement, and it makes filing your return straightforward. If you run a business and want payslips and tax records generated cleanly for your team, IndiaCRM handles payroll in a free app. See HR and payroll, read our salary slip format guide, or get the mobile app and run payroll for your team today.