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tneb bill calculator- How Calculation Works?
In the state Tamil Nadu the TNEB, usages slab based tarrif formula to calculate monthly domestic electricity bill. Hence, your total bill is devided into different slabs and each of the slab having different cost.
This calculator usages Tamil Nadu Electricity board’s latest tarrif formula to calculate the payble amount.
Tamil Nadu EB Tarrif Chart 2026
The tneb slab rate for domestic household consumers are as follows:
Consumption up to 500 Units
| Slab | Fee |
|---|---|
| 1 – 100 Units | Free |
| 101 – 200 Units | ₹2.35 |
| 201 – 400 Units | ₹4.70 |
| 401 – 500 | ₹6.30 |
Consumption Above 500 Units
| Slab | Fee |
|---|---|
| 1 – 100 Units | Free |
| 101 – 400 Units | ₹4.70 |
| 401– 500 Units | ₹6.30 |
| 501 – 600 Units | ₹8.40 |
| 601 – 800 | ₹9.45 |
| 801 – 1000 | ₹10.50 |
| Above 1000 | ₹11.55 |
Note: If your monthly consumtion exceeds 500 Units per month, you will get 100 Units free of cost but rest units will be charged at higher quota.