Professional Tax (P-Tax) is a state-level tax levied on professions, trades, callings, and employments. In West Bengal, it is managed under the West Bengal State Tax on Professions, Trades, Callings and Employments Act, 1979.

How P-Tax Deductions are Structured

Unlike Central Income Tax, which is calculated annually on net taxable income, Professional Tax is determined monthly based on the employee's **monthly gross salary**. The deduction is deducted automatically from the employee's salary bill by the Drawing and Disbursing Officer (DDO) and deposited into the state treasury.

The West Bengal P-Tax Slab Structure

The deduction amount is structured into income brackets:

• Up to ₹ 10,000 gross monthly: No Professional Tax deduction (₹).
• ₹ 10,001 to ₹ 15,000 gross monthly: ₹ 110 per month deduction.
• ₹ 15,001 to ₹ 25,000 gross monthly: ₹ 130 per month deduction.
• ₹ 25,001 to ₹ 40,000 gross monthly: ₹ 150 per month deduction.
• Above ₹ 40,000 gross monthly: ₹ 200 per month deduction.

Relationship with Net Salary Calculations

Because Professional Tax is a mandatory deduction, it directly reduces your net take-home salary. It is deducted alongside General Provident Fund (GPF) contributions and GISS. However, for Income Tax calculations, the total Professional Tax paid during the financial year (up to a maximum of ₹ 2,500) can be claimed as a deduction under Section 16(iii) of the Income Tax Act, reducing your net taxable income.