Tamil Nadu Electricity Bill Calculator
Calculate your Tamil Nadu electricity bill using the latest TNEB tariff rates, subsidy calculations for eligible connections, and optional bill customization.
State & Union Territory Wise Links
Select your State or Union Territory to calculate electricity bills using the latest region-specific tariff rates.
Energy Saving Tips for Tamil Nadu Electricity Bills
Tamil Nadu’s high temperatures lead to heavy cooling needs. Inverter ACs consume less power and cool faster.
Coastal sunlight is strong throughout the year. Solar heaters significantly reduce geyser electricity usage.
Running fans first cools rooms faster and reduces overall AC run time by 20–30%.
BLDC fans use 60% less power and work efficiently even during voltage fluctuations common in some districts.
Electric irons consume high wattage. Using them during non-peak hours helps reduce monthly bills.
Tamil Nadu Electricity Tariff Rates & Charges (TANGEDCO)
Tamil Nadu Electricity Subsidy Details
LT-I(A) Domestic — 201 to 500 Units (Bi-monthly)
First 100 units are 100% free. Slabs from 101 to 500 units receive tiered subsidies up to ₹2.60 per unit.
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0 - 100 Units | ₹4.95/kWh | No Cap | Energy Charges Only |
| 101 - 200 Units | ₹2.60/kWh | No Cap | Energy Charges Only |
| 201 - 400 Units | ₹0.25/kWh | No Cap | Energy Charges Only |
| 401 - 500 Units | ₹0.35/kWh | No Cap | Energy Charges Only |
LT-I(A) Domestic — Up to 100 Units (Bi-monthly)
100% free electricity. The Government of Tamil Nadu provides a full subsidy for the entire consumption up to 100 units.
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0 - 100 Units | ₹4.95/kWh | No Cap | Energy Charges Only |
LT-I(A) Domestic — 101 to 200 Units (Bi-monthly)
First 100 units are 100% free. The next 100 units are subsidized at ₹2.35 per unit (original rate ₹4.95 with ₹2.60 subsidy).
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0 - 100 Units | ₹4.95/kWh | No Cap | Energy Charges Only |
| 101 - 200 Units | ₹2.60/kWh | No Cap | Energy Charges Only |
LT-I(A) Domestic — 501 Units & Above (Bi-monthly)
First 100 units are 100% free. Energy charge slabs are subsidized by ₹0.25 to ₹0.60 per unit based on consumption.
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0 - 100 Units | ₹4.95/kWh | No Cap | Energy Charges Only |
| 101 - 200 Units | ₹0.25/kWh | No Cap | Energy Charges Only |
| 201 - 400 Units | ₹0.25/kWh | No Cap | Energy Charges Only |
| 401 - 500 Units | ₹0.35/kWh | No Cap | Energy Charges Only |
| 501 - 600 Units | ₹0.40/kWh | No Cap | Energy Charges Only |
| 601 - 800 Units | ₹0.50/kWh | No Cap | Energy Charges Only |
| 801 - 1000 Units | ₹0.55/kWh | No Cap | Energy Charges Only |
| 1001+ Units | ₹0.60/kWh | No Cap | Energy Charges Only |
LT-I(B) Huts & Poor Households
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0+ Units | ₹10.10/kWh | No Cap | Energy Charges Only |
LT-I(E) Common Facilities — Residential (≤3 Floors, No Lift)
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0+ Units | ₹2.85/kWh | No Cap | Energy Charges Only |
LT-II(C) Places of Public Worship
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0 - 120 Units | ₹3.25/kWh | No Cap | Energy Charges Only |
LT-III(A)(2) Power Looms
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0 - 500 Units | ₹7.15/kWh | No Cap | Energy Charges Only |
| 501 - 750 Units | ₹8.25/kWh | No Cap | Energy Charges Only |
| 751 - 1000 Units | ₹8.25/kWh | No Cap | Energy Charges Only |
| 1001 - 1500 Units | ₹3.80/kWh | No Cap | Energy Charges Only |
| 1501+ Units | ₹2.60/kWh | No Cap | Energy Charges Only |
LT-III(B) Industries & IT Services
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0+ Units | ₹0.83/kWh | No Cap | Energy Charges Only |
| 0+ Units | ₹2.05/kWh | No Cap | Energy Charges Only |
| 0+ Units | ₹0.80/kWh | No Cap | Energy Charges Only |
LT-IV Agriculture & Allied Activities (Metered)
| Eligibility Range | Discount | Max Cap | Applied On |
|---|---|---|---|
| 0+ Units | ₹4.95/kWh | No Cap | Energy Charges Only |
| 0+ Units | ₹7.75/kWh | No Cap | Energy Charges Only |
Use the Customize Tariff & Charges button above to customize the subsidy calculation for your bill.
Tamil Nadu Electricity Bill Calculator – How It Works
Learn how to use our Tamil Nadu electricity bill calculator effectively
About the Calculator
The Tamil Nadu Electricity Bill Calculator is an advanced online tool for estimating electricity bills across supported Tamil Nadu electricity connection types using verified tariff data based on applicable Tamil Nadu Electricity Regulatory Commission (TNERC) tariff orders and TNEB/TNPDCL tariff rates. Tamil Nadu's electricity distribution services are associated with the TNEB/TANGEDCO/TNPDCL electricity system, and the calculator is designed to cover a broad range of consumer categories, including domestic, commercial, industrial, agricultural, institutional, and other eligible connections.
Simply enter your electricity consumption in units and select the appropriate connection type to generate a detailed Tamil Nadu electricity bill estimate. The calculator applies the relevant tariff slabs, energy charges, fixed charges, subsidies, electricity duty, meter rent, taxes, and other applicable billing components wherever available. It provides a clear breakdown of the estimated bill, helping consumers understand electricity costs and verify their calculations using tariff data aligned with applicable TNERC tariff orders and TNEB/TNPDCL rates.
The built-in tariff database is regularly reviewed and updated when applicable tariff revisions become effective. This helps keep the calculator aligned with the latest available Tamil Nadu electricity tariff information while making it useful for bill estimation, bill verification, electricity cost planning, and tariff comparison. Depending on the selected connection type, the calculator can also serve users searching for a TNEB Bill Calculator, TNPDCL Bill Calculator, or Tamil Nadu EB Bill Calculator.
For users who need more flexibility, the calculator includes an optional tariff customization feature. You can add, edit, remove, or reorder tariff slabs and customize fixed charges, subsidies, and other billing parameters to match a specific tariff structure or future tariff revision. Customized settings are saved locally on your device for future calculations, making the tool useful not only for standard bill estimation but also for testing different tariff structures and comparing electricity costs.
The calculator is available in English, Hindi, Tamil, Telugu, Bengali, and Marathi, with multiple theme options for a more convenient experience. If you only need a simpler calculator for standard domestic and commercial connections, you can also use our dedicated TNEB Bill Calculator. This Tamil Nadu Electricity Bill Calculator is intended for a wider range of connection categories and provides greater flexibility through verified tariff data, detailed bill breakdowns, and optional tariff customization.
How to Use the Tamil Nadu Electricity Bill Calculator
- Enter Units Consumed: Enter the total electricity units (kWh) consumed during your Tamil Nadu billing period.
- Select Connection Type: Choose the appropriate TNEB/TNPDCL connection type to apply the latest applicable Tamil Nadu tariff rates and subsidies.
- Click Calculate: Press the "Calculate" button to instantly get your estimated electricity bill based on the selected state tariff.
- View Bill Breakdown: Instantly see Energy Charges, Fixed Charges, Subsidies, Electricity Duty, Meter Rent, Taxes, and other applicable charges.
- Customize Tariffs: Edit tariff slabs, fixed charges, subsidies, and other billing parameters or add new slabs to match your tariff structure.
- Reset to Default: Restore the latest built-in Tamil Nadu TNEB/TNPDCL tariff rates and default billing settings.
What Are Slabs in Electricity Billing?
Electricity charges are calculated using slabs. A slab is a range of electricity units with a fixed rate. For example:
| Units | Rate per kWh |
|---|
The more units you consume, the higher the slab rates may apply. This calculator uses telescopic calculation, meaning each slab is charged only for units within that range.
Popular Tamil Nadu Electricity Bill Calculations
Explore estimated electricity bills for commonly used electricity consumption levels using tariff slabs for Domestic connections under TANGEDCO in Tamil Nadu.
Frequently Asked Questions
Multi-Language and Multi-Theme Support
Our calculator supports multiple languages including English, Hindi, Bengali, Tamil, Telugu, and Marathi. You can also switch between Light and Dark themes for a better user experience.
Why Use This Calculator?
State/UT Wise Links
Select your electricity board to calculate bills using state-specific tariffs