Form 16 Generation and Employee Income Tax Filing Guide for Companies in India
22-04-2026 Wednesday
Table of Contents
ToggleEvery employer in India who deducts TDS from employee salaries has one annual deliverable that affects every single employee directly — Form 16. It is the document employees use to file their income tax returns. It is the document that proves TDS was deducted and deposited correctly. And it is the document that, when generated incorrectly or issued late, creates a chain of consequences — employee ITR errors, income tax notices to employees, and penalty exposure for the employer — that takes months to resolve.
For companies in Chennai and across India, Form 16 generation is not a June administrative task. It is the output of twelve months of accurate TDS management — and the quality of the Form 16 issued to every employee is a direct reflection of whether payroll and TDS compliance was handled correctly throughout the year.
This guide covers everything companies need to know about Form 16 — what it contains, how it is generated, the Form 24Q connection, the Part A and Part B structure, the deadlines, the penalties, and the common errors that make employees’ ITR filings inaccurate and invite income tax department scrutiny.

“Compliance is not a cost center. It is a trust signal — to your employees, your investors, your bank, and
your clients. In Chennai’s competitive business landscape, the companies that comply consistently are the ones that scale consistently.”
— VIRIKSHA HR SOLUTION, CHENNAI
Form 16 is the annual TDS certificate issued by an employer to an employee under Section 203 of the Income Tax Act, 1961. It certifies the total salary paid to the employee during the financial year, all deductions and exemptions applied, the taxable income computed, the tax liability calculated, and the TDS deducted and deposited with the government — quarter by quarter.
For employees, Form 16 is the primary document for filing their annual income tax return. It provides the exact figures — gross salary, exemptions, deductions, taxable income, and TDS — that go into the ITR. An employee who does not receive Form 16, or who receives an incorrect Form 16, cannot file an accurate ITR — which means they either file incorrectly and risk an income tax notice, or delay filing and attract a late filing penalty under Section 234F.
For employers, Form 16 is the evidence that TDS obligations under Section 192 were met — deducted correctly, deposited on time, and reported accurately in quarterly returns. A Form 16 that does not match the TRACES records creates a discrepancy that the income tax department can and does act on.
Every employer who has deducted TDS from an employee’s salary during the financial year is required to issue Form 16 to that employee. This obligation applies regardless of the amount of TDS deducted — even if TDS was deducted for only one or two months of the year because the employee joined mid-year or left before March.
Employers who have not deducted TDS because the employee’s income was below the basic exemption limit — ₹3,00,000 under the new regime, ₹2,50,000 under the old regime — are not required to issue Form 16 to those employees. However, many employers issue Form 16 or a salary certificate to all employees regardless — which is good practice for employees who need income proof for loan applications, visa applications, or other purposes.
Form 16 has two distinct parts — Part A and Part B — and both must be issued together to every applicable employee. Understanding what each part contains and how each is generated is essential for payroll teams and HR managers managing the Form 16 process.
Part A of Form 16 is generated by the employer from the TRACES portal — the TDS Reconciliation Analysis and Correction Enabling System maintained by the Income Tax Department. Part A cannot be prepared manually. It must be downloaded from TRACES after the employer’s quarterly TDS returns — Form 24Q — have been filed for all four quarters and processed by the department.
Part A contains the following information: employer name, address, TAN, and PAN. Employee name, designation, and PAN. Assessment year to which the certificate relates. Summary of TDS deducted and deposited quarter by quarter — Q1 (April to June), Q2 (July to September), Q3 (October to December), Q4 (January to March). Acknowledgement numbers of the quarterly Form 24Q returns. Total TDS deducted and deposited for the year.
The accuracy of Part A depends entirely on the accuracy of the quarterly Form 24Q returns. If a challan was incorrectly mapped in a quarterly return, if an employee’s PAN was entered incorrectly, or if a payment was not reflected in the return — Part A will not show the correct TDS figures. These errors must be corrected through a revised Form 24Q return before Part A can be correctly generated.
Part B of Form 16 is prepared by the employer — it is not generated from TRACES. Part B is the detailed computation of the employee’s income and tax liability for the financial year — and it must reconcile exactly with Part A’s TDS figures.
Part B contains the following information in sequence:
Gross salary — total salary paid during the year including all allowances, perquisites, and variable pay components.
Exemptions under Section 10 — HRA exemption calculated as per the least of the three prescribed conditions, LTA exemption for travel within India, and any other Section 10 exemptions applicable to the employee.
Net salary after exemptions — gross salary minus Section 10 exemptions.
Standard deduction — ₹75,000 for FY 2024-25, applicable under both the new and old tax regimes.
Gross total income — net salary after exemptions minus standard deduction.
Chapter VI-A deductions (old regime only) — Section 80C investments up to ₹1,50,000, Section 80D health insurance premium, Section 80CCD(1B) NPS contribution, Section 24(b) home loan interest, and all other deductions claimed and verified through Form 12BB with supporting proof.
Total taxable income — gross total income minus all applicable deductions.
Tax computed on taxable income — applied at the correct slab rates under the declared regime — new or old — for the financial year.
Surcharge — applicable where total income exceeds ₹50,00,000.
Health and Education Cess — 4% on tax plus surcharge.
Relief under Section 89 — applicable where arrears of salary relate to a previous year and have been included in current year income.
Section 87A rebate — applicable where income does not exceed ₹7,00,000 under the new regime or ₹5,00,000 under the old regime.
Net tax payable — total tax liability after all reliefs and rebates.
TDS deducted — which must exactly match the Part A figure.
Balance tax payable or refundable — the difference between net tax payable and TDS deducted. If positive, the employee has a tax demand — which should have been rectified through additional TDS deduction before year end. If negative, the employee is entitled to a refund through their ITR.
Form 16 Part A is only as accurate as the underlying Form 24Q returns. This is the dependency that most payroll teams understand in principle but manage poorly in practice.
Form 24Q is the quarterly TDS return for salary payments — filed on the TRACES portal within 31 days of each quarter end. Q1 by July 31. Q2 by October 31. Q3 by January 31. Q4 by May 31. The Q4 return includes Annexure II — the comprehensive annual salary and TDS computation for every employee — which is the source document for Form 16 Part B.
Common Form 24Q errors that create Form 16 problems:
TDS deposited against a wrong PAN does not appear in the correct employee's Form 26AS. The Form 16 shows TDS deducted but the employee's Form 26AS shows no TDS — which means the income tax department sees a discrepancy and sends a notice to the employee.
TDS deposited through a challan is not correctly mapped to the employee deductions in the Form 24Q return. The deposit appears in government records but the employee-level mapping is missing — creating a mismatch between Form 16 and Form 26AS.
the full-year salary and TDS computation in Annexure II does not reconcile with the Part B computation. The Form 16 is internally inconsistent — which is discovered when the employee's CA reviews it before filing their ITR.
an employee who joined mid-year or left during the year is omitted from one or more quarterly returns. Their Form 16 does not reflect the complete TDS picture.
Every Form 24Q error that is not corrected before Form 16 is generated creates a Form 16 that is either incorrect or impossible to generate correctly. The correction process — a revised Form 24Q, followed by regeneration of Part A from TRACES, followed by reissuance of corrected Form 16 to affected employees — is time-consuming, disruptive to employees filing their ITRs, and entirely avoidable with accurate quarterly filing.
Businesses Served Across Tamil Nadu & Pan India
Form 24Q Q4 filing deadline — May 31 The Q4 return must be filed before Form 16 Part A can be generated from TRACES. Employers who miss the May 31 deadline cannot generate Part A — which means they cannot issue Form 16 by June 15.
Form 16 issuance deadline — June 15 Form 16 must be issued to every applicable employee by June 15 of the year following the financial year. For FY 2024-25, Form 16 must be issued by June 15, 2025.
Penalty for late issuance — Section 272A(2)(g) Failure to issue Form 16 by June 15 attracts a penalty of ₹100 per day of default. For a company with 200 employees that issues Form 16 30 days late, the penalty exposure is ₹100 × 200 × 30 = ₹6,00,000. This is not a theoretical penalty — it is actively levied.
Late Form 24Q filing — Section 234E Late filing of any quarterly Form 24Q return attracts a fee of ₹200 per day — subject to a maximum of the TDS amount for that quarter. A Q4 return filed 30 days late attracts ₹6,000 in filing fees — regardless of whether TDS was deducted and deposited correctly.
For payroll teams managing Form 16 generation internally, this is the correct sequence:
Full medical care for the insured employee and their family members — including outpatient treatment, specialist consultations, hospitalisation, surgery, and medicines — through ESIC dispensaries and empanelled hospitals across India.
Review the Justification Report available on TRACES for each quarter — which identifies challan mismatches, PAN errors, and short deductions. Correct all errors through revised returns before proceeding.
Review the Q4 Annexure II — the full-year salary and TDS computation for every employee — for completeness and accuracy. Verify that every employee who was on payroll at any point during the year appears with correct figures.
After all returns are filed and processed, log into the TRACES portal, generate Form 16 Part A for all employees, and download the digitally signed certificates. Part A must carry a digital signature — unsigned Part A is not a valid TDS certificate.
Prepare Part B for every employee using the verified salary and deduction data — regime declaration, exemptions, Chapter VI-A deductions with proof, and tax computation. Part B must reconcile exactly with the Part A TDS figures.
Merge the TRACES-generated Part A with the employer-prepared Part B into a single Form 16 document for each employee. The merged document must carry the employer’s digital signature.
Distribute Form 16 to every applicable employee — digitally or physically — before June 15. Maintain proof of issuance for every employee.
The ESI Act provides a comprehensive package of benefits to insured employees and their dependants:
the most fundamental Form 16 error. The TDS shown in Part A — from TRACES — and the TDS shown in Part B — from payroll records — must be identical. Any difference means either the quarterly returns were filed incorrectly or the Part B computation is wrong.
Part B computed under the old regime for an employee who did not opt for it — or under the new regime for an employee who explicitly declared the old regime. Creates incorrect deduction claims in the employee's ITR.
the most common Part B error. HRA exemption is the lower of three conditions. Many payroll teams apply the prescribed formula incorrectly — taking the highest value rather than the lowest. The overstatement reduces taxable income and TDS — creating a tax demand on the employee.
deductions claimed in Part B based on declarations in Form 12BB but without supporting investment proof collected from the employee. When the employee's actual investments are lower than declared, the TDS shortfall surfaces as a demand.
taxable perquisites — accommodation, company car for personal use, concessional loans — not included in the gross salary figure in Part B. Creates understated taxable income and a corresponding TDS shortfall.
Form 16 generation is the annual culmination of twelve months of TDS management — and its accuracy depends on every upstream process being correct. Accurate regime declarations in April. Correct TDS calculations every month. Accurate Form 24Q filing every quarter. Correct challan mapping. Verified investment proof collected before year end. Perquisite valuations included. Annexure II reconciled before Q4 filing.
Viriksha HR Solutions manages the complete TDS and Form 16 process for companies in Chennai and across India — as part of integrated payroll management and payroll outsourcing engagements.
Our Form 16 and TDS compliance service covers the full annual cycle — Form 12BB and regime declaration collection in April, monthly TDS calculation under the correct regime for every employee including perquisite valuation, TDS revision after every mid-year change, monthly challan deposit before the 7th, quarterly Form 24Q filing before every deadline, TRACES Justification Report review and error correction before Q4 is filed, Annexure II preparation and reconciliation, Form 16 Part A generation from TRACES after Q4 processing, Part B preparation for every employee with correct exemption and deduction application, Part A and Part B merger and digital signing, and Form 16 issuance to every employee before June 15.
For companies that have received income tax department notices related to TDS short deduction, TDS mismatch, or late Form 24Q filing — our payroll compliance team reviews the notice, computes the correct liability, prepares the response, and manages the department engagement through to resolution.
For companies whose previous payroll vendor or internal team has filed Form 24Q returns with errors — wrong PANs, challan mismatches, missing employee entries — we manage the revised return filing and the TRACES correction process before Form 16 generation is attempted.
Every employee deserves a correct Form 16 — because their income tax return, their refund, and their relationship with the income tax department depends on it. Every employer has the legal obligation to provide one. The gap between obligation and delivery is where Viriksha operates.