Overview: Everything employers and employees need to know about Section 192 TDS in FY 2026-27: monthly tax deduction formula, Form 12BB investment submission, and New vs Old Regime comparison.
What is TDS on Salary (Section 192)?
When you earn a salary, the Income Tax Department requires your employer to deduct a portion of your income tax directly from your paycheck every month. This system is called Tax Deducted at Source (TDS), and it is governed by Section 192 of the Income Tax Act.
Instead of paying a massive tax bill all at once at the end of the financial year, TDS spreads your tax payments evenly across 12 months.
How Does Your Employer Calculate TDS Each Month?
Employers do not just pick a random percentage to deduct. They follow a step-by-step process:
Calculate Estimated Annual Salary: The employer adds up the employee's basic pay, allowances (HRA, special allowance, medical allowance), and any bonuses expected during the financial year.
Apply Deductions & Exemptions: If the employee is in the Old Tax Regime, the employer subtracts eligible exemptions like House Rent Allowance (HRA), Standard Deduction (Rs. 75,000), Section 80C (PPF, ELSS, Life Insurance), and Section 80D (Health Insurance). Under the New Tax Regime, standard deduction and NPS employer contributions are applied.
Determine Tax Slabs: The employer checks the taxable amount against the current income tax slabs to find the total annual tax.
Divide by 12 Months: The annual tax is divided by the remaining months in the year to arrive at the monthly TDS deduction.
Why Form 12BB and Investment Declarations Matter
At the start of each financial year (around April or May), employees submit an Investment Declaration to their HR department:
Initial Declaration: Employees declare what investments they plan to make during the year (such as ELSS mutual funds, life insurance premiums, or home loan interest).
Final Proof Submission (Form 12BB): Around December or January, employees must submit actual proof receipts using Form 12BB.
Impact on Take-Home Pay: If an employee fails to submit proofs on time, the employer has to calculate tax without deductions, causing a higher tax deduction in January, February, and March.
New Tax Regime vs Old Tax Regime: Which One Should You Pick?
India currently offers two tax systems for salaried individuals:
New Tax Regime (Default): Offers lower tax rates across brackets and higher rebate limits (income up to Rs. 7.75 Lakhs is effectively tax-free with the standard deduction). However, most traditional exemptions (like HRA, 80C, 80D) cannot be claimed.
Old Tax Regime: Has higher slab rates, but allows claiming deductions under Section 80C (up to Rs. 1.5 Lakhs), Section 80D health insurance, HRA rent exemption, and home loan interest.
If an employee has high rent payments and substantial home loans or investments, the Old Regime may save more tax. For individuals with minimal investments, the New Regime is generally simpler and more beneficial.
Conclusion
Understanding TDS helps employees plan their investments early and avoid surprise tax cuts toward the end of the year. For employers, maintaining accurate declaration records and issuing Form 16 on time is a core legal responsibility.
Platforms like PrimeHR automate Form 12BB collection, calculate TDS across both tax regimes automatically, and generate error-free Form 24Q quarterly returns effortlessly.

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