Form 16 Explained for 2026: Part A, Part B, TDS and Salary Reconciliation

What Form 16 tells you—and what it does not

Form 16 is a salary TDS certificate: use it to reconcile what your employer reported as salary, exemptions/deductions considered in payroll and tax deducted, rather than treating it as proof that your final tax return must exactly match payroll. Part A focuses on TDS/employer-employee certificate details; Part B contains the salary and tax computation details.

Before filing from Form 16

What to reconcile before filing

• Form 16 is a TDS certificate, not a substitute for reviewing your full tax return.
• Reconcile it with payslips, AIS/26AS and other income.
• Payroll TDS can differ from final liability if you have other income or corrections.
• Use the tax year/assessment year correctly during the 2026 transition.

Part A versus Part B

A simple reconciliation workflow

• Add gross salary from all employers if you changed jobs.
• Match TDS credits with the tax-information statements available on the e-filing portal.
• Check whether exemptions/deductions assumed by payroll match what you can actually claim.
• Add income that your employer did not know about, such as interest or capital gains.
• Recompute final tax rather than blindly copying a “tax payable” line.

Why Form 16 and your return can legitimately differ

Your employer calculates TDS from information available to payroll. You may have bank interest, another job, capital gains, rental income or corrected deductions that were not included. Conversely, payroll may have used a declaration that you later cannot substantiate. The return is the final taxpayer-level computation.

2026 transition point

India’s new Income-tax Act, 2025 and Income-tax Rules, 2026 apply from 1 April 2026 for Tax Year 2026–27 onwards, while earlier periods continue to use the earlier Act/rules for filing and payment purposes. Always read the certificate and return form for the correct period rather than mixing labels from two systems.

Use Form 16 as evidence, not the entire return

Read Form 16 as an annual tax certificate, not as a complete copy of your income-tax return. Part A is principally about tax deducted and deposited against the employer’s TAN and your PAN, while Part B explains the employer’s salary computation, exemptions or deductions considered, taxable salary and resulting tax calculation.

A useful reconciliation starts with three records: payslips for what payroll actually paid and deducted, Form 26AS/AIS for tax and other reported information, and Form 16 for the employer’s annual computation. Differences are not automatically errors—bank interest, capital gains or income from another employer can sit outside one employer’s Form 16—but unexplained differences should be resolved before filing.

If Form 16 and AIS disagree materially, investigate before filing. A mismatch may be explainable, but blindly copying one figure can produce an incorrect return or an avoidable notice.

For Tax Year 2026–27, also pay attention to the transition to the Income-tax Act, 2025 terminology and the current forms/rules. The safest workflow is to reconcile totals rather than relying on labels: gross salary, exempt allowances, standard deduction, taxable salary, deductions, tax, cess and TDS deposited.

If you changed jobs, each employer may have calculated TDS using only the salary information available to it unless you provided previous-employer details. Bank interest, capital gains, rental income or other items can also sit outside Form 16. Conversely, a deduction visible in the return may not appear in the employer's computation if you did not submit proof during payroll declaration.

Form 16 is most useful when you compare it with three other records: your payslips, Form 26AS/AIS and the information you plan to report in the income-tax return. Part A confirms the employer's tax-deduction details; Part B explains the salary computation and deductions considered by payroll. Neither part guarantees that every source of your taxable income is included.

Use Form 16 as a reconciliation document, not a substitute for the return

Match Form 16 against salary slips, AIS/26AS and any income or deductions the employer did not consider. The certificate explains what the employer reported and deducted; it does not necessarily capture bank interest, capital gains, a second employer or every eligible claim. Resolve mismatches before filing instead of copying numbers blindly.

Two employers in one financial year

A clean Form 16 does not eliminate the need to reconcile other income. Bank interest, capital gains, another employer’s salary or other reportable items can make the final return differ from the employer’s salary-only TDS calculation.

Form 16 reconciliation mistakes

• Mixing tax years or assessment years.
• Treating TDS as the final tax liability.
• Using gross CTC where a statutory formula requires a different salary/wage definition.
• Assuming an exemption or deduction is available under every tax regime.
• Ignoring state-specific payroll rules such as professional tax.

A year with two employers needs extra care

If you changed jobs during the year, each employer may have calculated TDS using only the salary information available to it unless previous-employer details were declared. Combine both salary records and TDS certificates before filing, then reconcile the totals with AIS/26AS so that income is not omitted or counted twice.

Rebuild the annual tax estimate independently

Frequently asked questions