TDS feels like a tax your employer controls — but you have more influence over it than most people realise. The deductions you declare in January, the allowances you negotiate in your salary structure, and the regime you choose all directly affect how much tax is withheld monthly. Here's the complete picture.
TDS (Tax Deducted at Source) on salary is the income tax that your employer deducts from your monthly pay and deposits directly with the government on your behalf. It is governed by Section 192 of the Income Tax Act. Unlike TDS on interest or rent (which is deducted at a flat rate), TDS on salary is calculated at the applicable income tax slab rates based on your estimated annual income.
TDS is not an additional tax — it is an advance payment of the income tax you would otherwise pay at the end of the year. If your total TDS equals your actual tax liability, no additional payment or refund arises when you file your ITR.
At the start of the financial year, HR estimates your total annual gross salary and asks you to declare investments and deductions you plan to make that year.
HRA exemption, standard deduction (₹75,000 new / ₹50,000 old), declared 80C investments, 80D health insurance, and any other declared deductions are subtracted from gross salary.
Income tax is computed at the applicable slab rates (including 4% cess), after applying the 87A rebate if eligible.
The annual tax liability is divided equally across the remaining months of the financial year. Adjustments are made in February–March based on actual proof submitted.
| Action | When | Potential Saving |
|---|---|---|
| Submit investment declaration to HR (80C, 80D, NPS) | April–May every year | Reduces taxable income by up to ₹2.75L |
| Submit HRA claim with rent receipts | January–February proof window | ₹1–3L HRA exemption depending on city and rent |
| Declare LTA for travel in eligible year | Claim window set by employer | Up to actual travel cost |
| Restructure salary — add meal coupons, mobile allowance | At appraisal or joining | ₹24,000–₹36,000/year |
| Opt for old regime if deductions are high | Declare at start of year | Depends on total deductions |
April is the most powerful month. Submitting a comprehensive investment declaration in April means lower TDS from month one — giving you more cash in hand throughout the year rather than waiting for a refund after filing your ITR in July.
Form 16 is your employer's TDS certificate, mandatory to be issued by 15 June each year for the previous financial year.
| Part | Contains |
|---|---|
| Part A | Employer's TAN, your PAN, quarterly TDS deposited amounts, acknowledgement numbers |
| Part B | Complete salary breakup, exemptions claimed (HRA, LTA), deductions under Chapter VI-A (80C, 80D etc.), total taxable income, and tax computed |
Always cross-check Part A of Form 16 with Form 26AS. If TDS amounts don't match, the mismatch can cause issues when your ITR is processed — the department goes by Form 26AS, not Form 16.
Form 26AS is available on the income tax portal (incometax.gov.in) under "View Form 26AS." It shows all tax credits against your PAN — TDS from salary, bank interest, rent, and any advance tax paid. Before filing your ITR, always confirm that TDS shown in Form 26AS matches what your employer shows in Form 16. File your ITR only after the figures reconcile.
The best way to avoid excess TDS is to submit accurate investment proofs to HR in January–February. This allows your employer to recalculate TDS for the remaining months and reduce deductions, putting more money in your hands immediately rather than as a refund months later.
When you join a new employer during the financial year, submit Form 12B to your new employer showing your salary and TDS from the previous employer. This allows the new employer to factor in the TDS already deducted and avoid either over- or under-deduction for the rest of the year. Failure to submit Form 12B often leads to excess TDS in one employer's books and under-deduction at the other's — creating a mismatch with Form 26AS.