⚡ How to Calculate Tamil Nadu Electricity Bill (Quick Answer)
Tamil Nadu domestic electricity follows a 4-slab system. First 100 units at ₹3.85/unit, 101-300 at ₹5.55, 301-500 at ₹8.25, above 500 at ₹11.50. Your bill includes ₹0.20 FAC per unit, ₹55 fixed charge, ₹18 meter rent, and 5% electricity duty.
Tamil Nadu Electricity Bill Calculator
TANGEDCO · Latest 2026 Tariffs
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Tamil Nadu Electricity Tariff Rates 2026 — TANGEDCO
🏠 Domestic Slab Rates — 2026
| Units Consumed (kWh/month) | Rate per Unit (₹/kWh) |
|---|---|
| 0 – 100 units | ₹3.85 |
| 101 – 300 units | ₹5.55 |
| 301 – 500 units | ₹8.25 |
| Above 500 units | ₹11.50 |
📋 Fixed Charges (Domestic)
| Charge Type | Amount |
|---|---|
| Fixed Monthly Charge | ₹55 / month |
| Meter Rent | ₹18 / month |
| Fuel Adjustment Charge (FAC) | ₹0.20 / unit |
| Electricity Duty | 5% of energy charges |
❓ Tamil Nadu Electricity Bill FAQs
What is the current electricity rate in Tamil Nadu 2026?
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Tamil Nadu follows a 4-slab progressive tariff: 0-100 units at ₹3.85/unit, 101-300 at ₹5.55, 301-500 at ₹8.25, above 500 at ₹11.50. Plus ₹0.20 FAC/unit, ₹55 fixed, ₹18 meter rent, and 5% electricity duty.
How is Tamil Nadu electricity bill calculated?
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Tamil Nadu bill = Energy Charges (as per slabs) + Fixed Charge (₹55) + Meter Rent (₹18) + FAC (₹0.20 × total units) + 5% Electricity Duty on energy charges. For 200 units: ₹385 + ₹277.50 + ₹55 + ₹18 + ₹40 + ₹33.12 ≈ ₹809.
What is FAC in Tamil Nadu electricity bill?
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FAC (Fuel Adjustment Charge) is currently ₹0.20 per unit in Tamil Nadu. It compensates TANGEDCO for fuel cost variations in power generation. FAC is adjusted periodically by TNERC (Tamil Nadu Electricity Regulatory Commission).
How accurate is this Tamil Nadu electricity bill calculator?
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This calculator uses official 2026 TANGEDCO tariff rates. Accuracy is within ±2-5% of actual bills. Variations may occur due to updated FAC rates, billing cycle rounding, or additional local surcharges. Verify with your official TANGEDCO bill.
Why is Tamil Nadu cheaper than other states?
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Tamil Nadu has relatively lower base rates (₹3.85 for first 100 units) compared to states like Delhi or Karnataka. Additionally, it has lower FAC (₹0.20) and lower fixed charges (₹55). This makes Tamil Nadu one of the cheapest states for domestic electricity consumption in India.