How many free units does TNEB provide in 2026?

TNEB provides 200 free units per bimonthly cycle (effective May 2026) for domestic consumers whose consumption is within 500 units.

How is TNEB bill calculated?

TNEB uses a telescopic two-tier tariff. For consumption ≤500 bimonthly units: 0-200 free, 201-400 at ₹4.70/unit, 401-500 at ₹6.30/unit. For >500 units: different slabs apply up to ₹11.55/unit. Fixed charges of ₹51/kW/month are added.

TNEB Bill Calculator 2026 — Calculate Your Electricity Bill

Q: What is the minimum EB bill in Tamil Nadu?

If bimonthly consumption is 200 units or less, the bill is ₹0 under the Tamil Nadu government free electricity scheme (May 2026 revision).

Calculate your Tamil Nadu electricity bill instantly. Updated: TNERC T.O.No.6 of 2025 rates (effective July 2025) + 200 units free (May 2026 Govt. subsidy).

📊 Quick Reference: Bill Amount by Units

Bimonthly domestic (2kW load). Approximate values.

Units	Bill (New - May 2026)	Bill (Old)	You Save
100	₹0 (FREE)	₹0	-
200	₹0 (FREE)	₹235	₹235
300	₹439	₹705	₹266
400	₹909	₹1,175	₹266
500	₹1,539	₹1,805	₹266
658	₹3,428	₹4,102	₹674
1000	₹6,538	₹7,212	₹674

* "You Save" shows benefit of May 2026 revision (200 units free) vs old tariff. Includes fixed charges for 2kW load.

TNEB Domestic Tariff Slabs 2026

Tamil Nadu follows a telescopic tariff structure — the rate per unit increases as consumption rises. Here's the current slab structure for domestic (residential) consumers:

Slab	Units	Rate (₹/unit)
If consumption ≤ 500 units:
1	0 - 100	Free (Govt. subsidy)
2	101 - 200	₹2.35
3	201 - 400	₹4.70
4	401 - 500	₹6.30
If consumption > 500 units:
1	0 - 100	Free
2	101 - 400	₹4.70
3	401 - 500	₹6.30
4	501 - 600	₹8.40
5	601 - 800	₹9.45
6	801 - 1000	₹10.50
7	Above 1000	₹11.55

Free 100 Units Scheme

The Tamil Nadu government provides free electricity for consumers using 100 units or less per month. If your bimonthly reading is 200 units or less (100/month), your bill will be ₹0. This is automatic — no application needed.

How Is Your EB Bill Calculated?

TNEB bills are generated bimonthly (every 2 months). The meter reader records your consumption, and the bill is calculated using the telescopic slab method. Each slab is charged at its respective rate, and the amounts are added together. Additional charges include:

Fixed charge: ₹20-50/month (based on connected load)
Meter rent: ₹5-15/month
Tax: Electricity duty 5%

Tips to Reduce Your Electricity Bill

Stay under 100 units — get free electricity
Switch to LED — saves 75% on lighting
AC at 24°C — each degree lower costs 6% more
5-star appliances — significant long-term savings
Solar panels — eliminate bills permanently

Frequently Asked Questions

How many free units does TNEB provide?

TNEB provides 100 free units per month (200 per bimonthly cycle) for domestic consumers whose consumption is within this limit.

What is the minimum EB bill in Tamil Nadu?

If you consume 100 units or less per month, your bill is ₹0. For consumption above 100 units, the minimum charge starts at approximately ₹75 (101 units).

How to check TNEB bill online?

Visit the official TANGEDCO website (tangedco.org) or use the TNEB Mobile App with your consumer number to view and pay bills online.

Available for all Tamil Nadu districts

This calculator works for all TANGEDCO circles including Chennai, Coimbatore, Madurai, Trichy, Salem, Tirunelveli, Erode, Tirupur, Vellore, Dindigul, Karur, Dharmapuri, Krishnagiri, Hosur, Cuddalore, Thanjavur, Nagapattinam, Pudukkottai, Sivagangai, Ramanathapuram, Theni, Kanyakumari, Thoothukudi, Nilgiris, Namakkal, Perambalur, Ariyalur, Kallakurichi, Ranipet, Tirupattur, Chengalpattu, Villupuram, Tiruvallur, Kanchipuram, and Mayiladuthurai.

⚡ TNEB Bill Calculator 2026