TDS on Salary and Form 16

Salary TDS is not like supplier TDS

TDS on a supplier bill applies a fixed percentage to a transaction. Salary TDS works differently in one important way: there is no per-transaction rate. The employer must estimate the employee’s whole-year tax liability in advance, then deduct it across the year in monthly instalments.

How the monthly deduction is actually calculated

At the start of the financial year — or when an employee joins — the employer:

• 1.Estimates that employee’s total likely income for the full financial year.
• 2.Applies the applicable income-tax slab rates and any rebate the employee is entitled to.
• 3.Arrives at an estimated annual tax liability.
• 4.Divides that across the remaining months of the year — that is the monthly TDS.

It is recalculated during the year if the employee’s pay or declared investments change materially. The estimate is not meant to be set once and forgotten.

A joiner’s tax is spread, not front-loaded

A common misunderstanding: if someone joins mid-year with a genuine tax liability, the employer does not deduct the entire estimated annual tax from the first month’s salary. It is spread in roughly equal instalments across the remaining months from the point they join.

Deducting a whole year’s tax at once would leave that employee with little or no net pay that month. The intent of the rule is to spread the burden evenly, not to create a one-month shock.

Zero TDS is often the correct answer

A payroll register showing no TDS against any employee is not automatically an omission. Where every employee’s annual income sits below the prevailing rebate threshold, zero deduction is the correct, compliant outcome.

For a worked illustration: an employee on ₹45,000 a month earns ₹5,40,000 a year. Under the new tax regime’s rebate provision announced in the Union Budget 2025 and effective from FY 2025-26, income up to ₹12,00,000 a year attracted zero net tax payable. ₹5,40,000 sits comfortably below that, so no TDS applies.

The important part is not the number — it is the discipline. That answer is true at those salary levels under that threshold. Promote the same employee above the threshold and salary TDS starts applying to them specifically, even while colleagues remain unaffected. Check the actual rule against the actual number, every year. Never assume last year’s answer still holds.

Form 16 is required even when TDS is zero

Form 16 is the annual certificate an employer issues to each employee, summarising salary paid and any tax deducted during the year. The obligation does not disappear because the deduction was nil.

Employees need Form 16 to file their own personal income tax return, regardless of whether anything was actually withheld. “We deducted nothing, so we owe them nothing” is a genuinely common and genuinely wrong conclusion.

Form 12BA: only when perquisites exist

Form 12BA is a separate document detailing taxable perquisites — non-cash benefits such as a company car, rent-free accommodation, or certain concessional loans — that add to taxable income beyond stated salary.

It is only required where perquisites actually exist. Where employees are paid entirely in cash salary with no such benefits, Form 12BA simply is not a live document for that payroll.

Common mistakes

• —Applying a flat percentage to salary as if it were supplier TDS.
• —Front-loading a mid-year joiner’s full annual tax into their first payslip.
• —Setting the estimate once in April and never revisiting it after a raise or a fresh investment declaration.
• —Skipping Form 16 because no tax was deducted.
• —Carrying last year’s threshold forward without checking whether the budget changed it.