Tax Deducted at Source (TDS) on salary under Section 192 of the Income Tax Act is the mechanism by which an employer deducts income tax from the employee's salary every month and remits it to the government on the employee's behalf. The employer acts as a withholding agent — deducting tax at the average rate of income tax computed on the employee's estimated total income for the entire financial year. This is different from TDS on other income like interest or rent, which uses fixed rates. The employer considers all salary components (basic, HRA, allowances, perquisites) as income and then deducts exemptions declared by the employee (HRA exemption, LTA exemption, standard deduction of ₹50,000) and deductions claimed (Section 80C, 80D, 80CCD(1B), 24(b) for home loan interest, etc.) to arrive at the estimated taxable income. Tax is computed on this taxable income as per the applicable slab rates and divided equally across 12 months for monthly deduction. Employers must deposit TDS by the 7th of the following month (e.g., TDS deducted in April must be deposited by May 7). Form 16 — the TDS certificate — must be issued to employees by June 15 after the end of the financial year. The employee then files ITR using Form 26AS (which shows TDS deposited by employers and other deductors) and Form 16 as references. If the employer deducts insufficient TDS due to under-reporting of income by the employee, the employee is liable for advance tax and penal interest under Sections 234B and 234C.
Monthly TDS = (Estimated Annual Tax Liability including Cess − TDS already deducted) / Remaining months in the financial year; Annual Tax = Tax on (Gross Salary − Exemptions − Deductions) as per applicable slab rates + 4% Cess − Section 87A Rebate
- 1At the start of the financial year (or on joining), the employee submits a declaration to HR with their expected deductions and exemptions — HRA, LTA, 80C investments, 80D, home loan interest — to enable accurate TDS computation.
- 2The employer estimates the annual taxable income by adding all salary components, subtracting exemptions (HRA, standard deduction ₹50,000, LTA), and deductions (80C, 80D, etc.) as declared.
- 3Tax is computed on the estimated taxable income as per the applicable slab rates and the 4% Health & Education Cess is added; Section 87A rebate (₹25,000 for new regime or ₹12,500 for old regime, if applicable) is deducted.
- 4The annual estimated tax is divided by 12 and the monthly TDS amount is deducted from the employee's net salary; as the year progresses, if salary changes or new declarations are submitted, TDS is recalculated and adjusted.
- 5Employers must deposit TDS with the government by the 7th of the following month using Challan 281; for March, the deadline extends to April 30.
- 6At year end (January-February), employers reconcile actual salary and confirmed investments (via proof submission) and make a final adjustment — if TDS was over-deducted, the excess is refunded in the last month's salary; if under-deducted, a catch-up deduction is made.
- 7The employer issues Form 16 by June 15, which contains: Part A (TDS deposited quarter-wise, from Form 26AS) and Part B (details of salary, perquisites, deductions, and tax computation). The employee uses this for ITR filing.
Each month employer deducts ₹16,183; Form 16 shows annual ₹1,94,200 TDS
Taxable income = ₹15L − ₹1.2L HRA − ₹50K SD − ₹1.5L (80C) − ₹25K (80D) = ₹11.55L. Tax on ₹11.55L at old slab: ₹1,17,500 (₹12,500 + ₹1,00,000 + ₹5,000). Add 4% cess: ₹1,22,200. Wait: at 30% on ₹1.55L = ₹46,500; Total = ₹12,500+₹1,00,000+₹46,500 = ₹1,59,000 + cess ≈ ₹1,65,360. Monthly TDS ≈ ₹13,780.
New regime at ₹19.5L: 5%×3L + 10%×3L + 15%×3L + 20%×3L + 30%×4.5L
New regime slabs: 0 on ₹3L, 5% on next ₹3L = ₹15K, 10% on next ₹3L = ₹30K, 15% on next ₹3L = ₹45K, 20% on next ₹3L = ₹60K, 30% on ₹4.5L = ₹1,35,000. Total = ₹2,85,000 + ₹15,000 (cess 4% error: 2,85,000 × 1.04 = ₹2,96,400). Monthly TDS = ₹24,700.
Employer recalculates full year tax in October and distributes remaining tax over 6 months
When a mid-year hike occurs, the employer recalculates the full-year estimated tax based on the new salary extrapolated and deducts the remaining tax due over the remaining months. This often causes a noticeable increase in TDS from the hike month onwards.
If total tax liability > ₹10,000, advance tax must be paid; interest under 234B/234C on shortfall
Employer TDS covers only salary income. If you have significant FD interest, rental income, or capital gains, you must pay advance tax in four instalments to cover the total tax liability. Failure attracts 1% per month interest under Sections 234B and 234C.
Employees planning annual tax liability and verifying if their monthly TDS deduction is accurate based on their regime choice and declared investments., where accurate tds on salary analysis through the Tds On Salary Calc supports evidence-based decision-making and quantitative rigor in professional workflows
HR and payroll departments computing TDS for thousands of employees monthly across different salary levels, regimes, and investment declarations., where accurate tds on salary analysis through the Tds On Salary Calc supports evidence-based decision-making and quantitative rigor in professional workflows
Finance professionals helping employees understand Form 16 and Form 26AS reconciliation to ensure accurate ITR filing., where accurate tds on salary analysis through the Tds On Salary Calc supports evidence-based decision-making and quantitative rigor in professional workflows
Freelancers and consultants with TDS deducted by clients (under Section 194J/194C) cross-referencing against salary TDS for total tax credit in ITR., where accurate tds on salary analysis through the Tds On Salary Calc supports evidence-based decision-making and quantitative rigor in professional workflows
Tax planning for mid-year salary changes, bonuses, and ESOPs — ensuring advance tax is paid if employer TDS becomes insufficient due to variable pay.
Perquisites — TDS on Non-Cash Benefits
Perquisites like company car, rent-free accommodation, stock options (ESOPs/RSUs), interest-free loans, and club memberships are taxable as salary. Their value is computed as per Income Tax Rules (Rule 3) and included in taxable salary for TDS purposes. For ESOPs, TDS is triggered at exercise (when shares vest) on the difference between Fair Market Value and exercise price, even though no cash is received by the employee.
TDS on Salary When Employee Has Multiple Jobs
If an employee works with two employers simultaneously (Part A and Part B), each employer deducts TDS independently on their respective salary payments. The employee must disclose salary from all employers to at least one employer for consolidated TDS computation. Under Section 192(2), an employee can request one employer to consider the total salary from both employers for TDS — this prevents under-deduction.
Delayed TDS Deposit by Employer
If an employer deducts TDS but does not deposit it, the employee cannot claim credit for that TDS since it will not appear in Form 26AS. The employee must still pay the tax liability out of pocket (self-assessment tax) and the employer faces penalties plus interest. Employees should periodically check Form 26AS to ensure their employer's TDS is being deposited correctly.
NRI Salary TDS
Salary earned in India by an NRI is fully taxable in India. TDS under Section 192 applies in the same way as for residents. For NRIs working for Indian companies, the employer deducts TDS at applicable slab rates. NRIs are not eligible for the Section 87A rebate. Double Tax Avoidance Agreement (DTAA) benefits may reduce tax if the NRI's home country has a treaty with India.
| Activity | Deadline | Form/Reference |
|---|---|---|
| TDS deposit (monthly) | 7th of following month (April 30 for March) | Challan 281 |
| TDS Return — Q1 (Apr-Jun) | July 31 | Form 24Q |
| TDS Return — Q2 (Jul-Sep) | October 31 | Form 24Q |
| TDS Return — Q3 (Oct-Dec) | January 31 | Form 24Q |
| TDS Return — Q4 (Jan-Mar) | May 31 | Form 24Q |
| Form 16 issuance to employee | June 15 | Form 16 (Part A + B) |
| Advance Tax — Instalment 1 | June 15 (15% of liability) | Challan 280 |
| Advance Tax — Instalment 2 | September 15 (45% of liability) | Challan 280 |
| Advance Tax — Instalment 3 | December 15 (75% of liability) | Challan 280 |
| Advance Tax — Instalment 4 | March 15 (100% of liability) | Challan 280 |
What is Form 16 and why is it important?
Form 16 is the TDS certificate issued by the employer to the employee by June 15 after the financial year ends. It has two parts: Part A (from TRACES portal — shows TDS deposited quarter-wise to the government, employer's TAN, PAN of both parties, acknowledgment numbers) and Part B (detailed computation — gross salary, allowances, exemptions claimed, deductions under Chapter VI-A, taxable income, tax computation, and net tax deducted). Form 16 is the primary document for filing ITR for salaried employees.
What is Form 26AS?
Form 26AS is the consolidated Annual Information Statement (AIS) available on the Income Tax portal that shows all tax credits against your PAN — TDS deducted by all deductors (employers, banks, tenants, etc.), advance tax paid, self-assessment tax paid, and any refunds issued. It is the taxpayer's tax passbook. Always cross-check your Form 16 against Form 26AS — if TDS is deducted but not deposited by the employer, it will not appear in Form 26AS and you cannot claim credit for it in your ITR.
By what date should employers deposit TDS?
TDS deducted from employee salary must be deposited to the government by the 7th of the following month. For example, TDS deducted in April must be deposited by May 7. For the month of March, TDS can be deposited up to April 30. TDS Returns (Form 24Q) must be filed quarterly: Q1 (April-June) by July 31, Q2 (July-September) by October 31, Q3 (October-December) by January 31, Q4 (January-March) by May 31.
What if my employer deducts wrong (excess or insufficient) TDS?
If excess TDS is deducted, it will reflect in Form 26AS. You can claim it as a refund when filing your ITR — the excess TDS is refunded by the Income Tax Department with interest at 6% per annum (if refund exceeds 10% of assessed tax). If insufficient TDS is deducted (perhaps because you declared inflated deductions to your employer), you must pay advance tax to cover the shortfall and may be liable for interest under Sections 234B and 234C.
Can I ask my employer to not deduct TDS?
You can submit Form 13 to the Income Tax Officer and get a 'Nil TDS' or reduced TDS certificate, which you then submit to your employer. This is applicable when you know your total tax liability will be lower (e.g., you have losses from house property or capital losses). Alternatively, if your income is below the taxable limit, you can submit Form 15G/15H (for interest income) — but for salary, there is no equivalent form; the employer must deduct TDS based on estimated taxable salary.
What are Sections 234B and 234C — advance tax penalties?
Section 234B: If you pay less than 90% of your assessed tax by March 31 (through TDS + advance tax), you pay interest at 1% per month from April 1 till the date of actual payment. Section 234C: If you miss the advance tax instalment deadlines (15% by June 15, 45% by September 15, 75% by December 15, 100% by March 15), you pay 1% per month simple interest on the shortfall for each instalment period. These apply only if your total tax liability exceeds ₹10,000.
What is the difference between TDS and advance tax?
TDS is tax deducted at source by the payer (employer, bank, tenant) before making payment to the payee. Advance tax is tax paid directly by the taxpayer in advance instalments during the financial year on income not covered by TDS (capital gains, business income, rental income, interest). Both TDS and advance tax payments appear as tax credits in Form 26AS and are netted against your final tax liability at the time of ITR filing.
How should I declare investments to get accurate TDS?
Submit an investment declaration form to your employer at the start of the financial year (April) with your expected investments for 80C, 80D, HRA details, home loan interest, etc. Then, in January-February, submit actual proof of investments made during the year. If your actual investments differ from your declaration, the employer adjusts TDS in the last few months. Keeping your employer informed of regime choice (old vs new) and investment status helps avoid TDS mismatches.
Pro Tip
Check your Form 26AS on the Income Tax portal (incometax.gov.in) every quarter — not just at tax time. If TDS is missing (employer deducted but not deposited), report it to your employer immediately. You must pay the tax yourself to avoid interest charges, and then pursue the employer for reimbursement. Catching this early avoids year-end scrambles and potential interest penalties.
Did you know?
India's TDS system processes over ₹12 lakh crore annually — roughly 60% of all direct tax collections come through TDS. Section 192 (TDS on salary) is the single largest contributor to TDS collections. The system was significantly modernised with the TRACES (TDS Reconciliation Analysis and Correction Enabling System) portal in 2012, which made TDS credit verification online and reduced mismatches by over 80%.