TNEB commercial bill calculator: Tamil Nadu shops
For shops, offices, clinics and other small businesses on the LT V (commercial) tariff. Enter your units and load to see the bill line by line.
- Billed every two months
- Order dated 30 June 2025
- Rates checked 15 October 2026
Enter your units to see the bill.
Shop tariff
LT VMiscellaneous / general purpose (commercial)Verified
bimonthly consumption <= 100 units
| Units | Rate |
|---|---|
| 1–100 | ₹6.65 /kWh |
bimonthly consumption > 100 units (rate on ALL units)
| Units | Rate |
|---|---|
| All units | ₹10.45 /kWh |
Fixed charge: per kW per month, by connected load All units: ₹110; All units: ₹332; All units: ₹608
Schedule wording: 'Above 100 units (for all units)'. GoTN's one-year subsidy for this category (6.45 / 10.15 payable) ended 30-06-2026.
Source: TNERC Suo-motu Order No. 6 of 2025 (T.O. No. 6 of 2025), Determination of Tariff for Distribution for FY 2025-26, dt 30-06-2025, effective 01-07-2025, p.17; Order 4/2026 sec XI(ii) p.28. Open the order
Example bills
| Units per 2-month bill | Bill | Per month | Average per unit |
|---|---|---|---|
| 200 | ₹2,750.00 | ₹1,375.00 | ₹13.75 |
| 400 | ₹4,840.00 | ₹2,420.00 | ₹12.10 |
| 600 | ₹6,930.00 | ₹3,465.00 | ₹11.55 |
| 1000 | ₹11,110.00 | ₹5,555.00 | ₹11.11 |
| 2000 | ₹21,560.00 | ₹10,780.00 | ₹10.78 |
3 kW load, urban. Lines the calculator leaves out are listed alongside.
Not in this estimate
- Fixed charge is Rs 110 per kW per month of connected load, so two months are billed here.
- Electricity tax (5% as last notified; current rate not confirmed) not included.
Shop bill questions
What is the commercial electricity tariff in Tamil Nadu?
Shops and offices are billed under LT V (commercial). The rates and fixed charge are in the table on this page, taken from TNERC tariff order of 30 June 2025.
How much is a shop electricity bill for 300 units in Tamil Nadu?
About ₹6,930.00 for 600 units in a 2-month bill with a 3 kW load. Fixed charge is Rs 110 per kW per month of connected load, so two months are billed here.
Is the shop tariff different from the home tariff?
Yes. Commercial rates are higher per unit, the fixed charge is usually higher, and state subsidies for homes do not apply.