TNEB Bill Calculator 2026 – Free 200 Units Scheme (Updated)
Want to calculate your TNEB bi-monthly electricity charges quickly? Whether you’re a residential consumer in Chennai or anywhere across Tamil Nadu, this TNEB bill calculator for residential users helps you estimate your electricity bill based on the latest TANGEDCO tariff slabs.
Based on the revised slab rates effective May 2026 – includes the 200 free units scheme for domestic consumers.
New TNEB Tariff Slabs – May 2026 (200 Free Units Scheme)
The Tamil Nadu government revised the TANGEDCO domestic tariff structure in May 2026, expanding the free units benefit from 100 to 200 units for eligible households. Here's the complete slab breakdown:| Units (u) | Subsidy | Unit Range (From–To) | Unit Cost | Unit Cost |
|---|---|---|---|---|
| ≤ 200 | ₹4.80 × u | 1 – 200 | ₹0.00 | |
| ≤ 400 | ₹4.80 × u | 1 – 200 | ₹0.00 | ₹ 0.00 |
| ₹0.10 × u | 201 – 400 | ₹4.70 | ₹ 0.00 | |
| ≤ 500 | ₹4.80 × u | 1 – 200 | ₹0.00 | ₹ 2.35 |
| ₹0.10 × u | 201 – 400 | ₹4.70 | ₹ 0.00 | |
| ₹0.15 × u | 401 – 500 | ₹6.30 | ₹ 2.35 | |
| ≤ 600 | ₹4.80 × u | 1 – 100 | ₹0.00 | ₹ 4.70 |
| ₹0.10 × u | 101 – 400 | ₹4.70 | ₹ 0.00 | |
| ₹0.15 × u | 401 – 500 | ₹6.30 | ₹ 2.35 | |
| ₹0.15 × u | 501 – 600 | ₹8.40 | ₹ 4.70 | |
| ≤ 800 | ₹4.80 × u | 1 – 100 | ₹0.00 | ₹ 6.30 |
| ₹0.10 × u | 101 – 400 | ₹4.70 | ₹ 0.00 | |
| ₹0.15 × u | 401 – 500 | ₹6.30 | ₹ 4.70 | |
| ₹0.15 × u | 501 – 600 | ₹8.40 | ₹ 6.30 | |
| ₹0.20 × u | 601 – 800 | ₹9.45 | ₹ 8.40 | |
| ≤ 1000 | ₹4.80 × u | 1 – 100 | ₹0.00 | ₹ 0.00 |
| ₹0.10 × u | 101 – 400 | ₹4.70 | ₹ 4.70 | |
| ₹0.15 × u | 401 – 500 | ₹6.30 | ₹ 6.30 | |
| ₹0.15 × u | 501 – 600 | ₹8.40 | ₹ 8.40 | |
| ₹0.20 × u | 601 – 800 | ₹9.45 | ₹ 9.45 | |
| ₹0.20 × u | 801 – 1000 | ₹10.50 | ₹ 0.00 | |
| > 1000 | ₹4.80 × u | 1 – 100 | ₹0.00 | ₹ 4.70 |
| ₹0.10 × u | 101 – 400 | ₹4.70 | ₹ 6.30 | |
| ₹0.15 × u | 401 – 500 | ₹6.30 | ₹ 8.40 | |
| ₹0.15 × u | 501 – 600 | ₹8.40 | ₹ 9.45 | |
| ₹0.20 × u | 601 – 800 | ₹9.45 | ₹ 10.50 | |
| ₹0.20 × u | 801 – 1000 | ₹10.50 | ₹ 0.00 | |
| ₹0.25 × u | > 1000 | ₹11.55 | ₹ 4.70 |
TNEB Bill Calculator Old vs New – What Changed in 2026?
Many consumers are confused about the difference between the old and new tariff structure. Here's a quick comparison:
| Criteria | Old Scheme (Before May 2026) | New Scheme (May 2026) |
|---|---|---|
| Free Units | Up to 100 units | Up to 200 units |
| Slab 101–200 | ₹2.35/unit | ₹0.00 (free) |
| Slab 201–400 | ₹4.70/unit | ₹4.70/unit |
| Benefit | Low-consumption households | Mid-range households |
The biggest change: households consuming up to 200 units now pay nothing, compared to the earlier limit of 100 free units. This benefits a large portion of Tamil Nadu's residential consumers who fall in the 100–200 unit range.
How to Calculate Your TNEB Electricity Bill
There are various methods was available online to check your Bill charges but for this method consumers don't required to know Consumer No.
- Check your electricity meter or EB card for the consumed units for the bi-monthly period.
- Enter the units in the calculator above and click "Calculate."
- Compare the result with your actual bill - small differences may occur due to meter rent, fixed charges, or arrears.
For a more detailed slab-wise cost breakdown including fixed charges, you can also use tnebbillcalculator.info which shows a full itemised calculation.
EB Bill Calculator for Chennai Residential Consumers
If you're based in Chennai, the tariff slabs are the same as the rest of Tamil Nadu, TANGEDCO follows a unified domestic tariff structure statewide. The 200 free units scheme applies equally to Chennai consumers. However, note that commercial and non-domestic connections follow a completely different tariff chart and are not covered by this calculator.
How to Pay Your Electricity Bill
You can pay your TANGEDCO bill through several methods:
- UPI Apps - Google Pay, PhonePe, Paytm, and BharatBillPay all support TNEB bill payment. Enable Auto Pay to never miss the due date.
- TNEB Website - Pay directly at tnebnet.org using your consumer number.
- TNEB Mobile App - Download the official TANGEDCO app for bill view and payment.
- In-person - Pay at your nearest TNEB customer service centre or authorized bank branch.
Frequently Asked Questions
Is this EB bill calculator app available for mobile?
This calculator works on all mobile browsers without needing a separate app download. Simply open the page on your phone and calculate instantly.
What is the cost of 250 units under the new scheme?
Under the May 2026 tariff, 250 units costs ₹235 (first 200 units free, remaining 50 units at ₹4.70 each).
What is the cost of 300 units?
300 units costs ₹470 (first 200 units free, next 100 units at ₹4.70 each).
Does the 200 free units scheme apply to all consumers?
The scheme applies to domestic/residential connections only. Commercial and industrial connections are charged at different rates.
How often does TNEB bill residential consumers?
TNEB bills domestic consumers on a bi-monthly (every two months) basis. So the units shown on your bill represent two months of consumption.