Professional Tax
Professional Tax in Tamil Nadu — Half-Yearly Slabs Explained
Tamil Nadu bills professional tax half-yearly, not monthly — Chennai slabs run ₹180 to ₹1,250 per half-year, deducted in August and January.
Tamil Nadu is a half-yearly state, not a monthly one — professional tax is assessed on average half-yearly income and deducted and deposited twice a year, in August (for April–September) and January (for October–March), rather than every payslip.
It's also locally administered: rates below are the Greater Chennai Corporation's current slabs, which are the most commonly cited reference, but other municipal corporations and panchayats in Tamil Nadu set their own rates within similar income bands — confirm with the local body your business or employment falls under.
The figure this calculator shows is a monthly equivalent (the half-yearly amount ÷ 6) purely for comparability with other states — what actually happens on a Tamil Nadu payslip is two lump-sum deductions a year, not a small monthly one.
Worked example
A standard month works out to ₹208.00. A ₹50,000-a-month salary is ₹3,00,000 of half-yearly income, well above the ₹75,000 top band: ₹1,250 deducted in August and again in January — ₹2,500 for the year, under Greater Chennai Corporation's current slabs. Because the bands are half-yearly, any salary above ₹12,500 a month pays the top rate.
To see how Tamil Nadu compares with other states, including what the same salary costs in each, read our state-wise professional tax slabs guide.
Frequently asked questions
What is the professional tax slab in Tamil Nadu in 2026?
Tamil Nadu's slabs use half-yearly income. Under Greater Chennai Corporation rates: nil up to ₹21,000, ₹180 up to ₹30,000, ₹425 up to ₹45,000, ₹930 up to ₹60,000, ₹1,025 up to ₹75,000, and ₹1,250 above ₹75,000 per half-year. So any salary above ₹12,500 a month pays ₹1,250 in August and ₹1,250 in January, ₹2,500 a year. Other local bodies may differ.
Why is this shown as a monthly figure if it's actually paid twice a year?
For comparability with states that deduct monthly. On an actual Tamil Nadu payslip, you won't see a small deduction every month — you'll see a larger one in August and another in January, each half of the annual figure.
Do all cities and panchayats in Tamil Nadu charge the same rate?
No — Greater Chennai Corporation's slabs (shown here) are the most commonly referenced, but other corporations and panchayats set their own rates within broadly similar income bands. Confirm with the specific local body.
Is Tamil Nadu also capped at ₹2,500 a year like other states?
Yes — the top slab (₹1,250 per half-year) works out to exactly ₹2,500 a year, the constitutional maximum under Article 276(2).