TNEB Bill Calculator 2026 – Updated 200 Free Units Scheme (May 2026)

TNEB Bill Calculator 2026 – 200 Free Units Scheme

For Domestic Usage Only (Bi-monthly)

Enter Consumed Units

The Tamil Nadu government announced a major revision to the TANGEDCO domestic tariff in May 2026 — expanding free electricity from 100 units to 200 units for residential consumers. If you haven't updated your bill calculation, you may be overestimating your charges. Use the TNEB bill calculator above to check your correct bi-monthly amount.

TNEB Tariff Slabs – May 2026 (Updated)

TANGEDCO revised domestic tariff – effective May 2026

Units (u)	Subsidy	Unit Range		Unit Cost
		From	To
≤ 200	₹ 4.80 × u	1	200	₹ 0.00
≤ 400	₹ 4.80 × u	1	200	₹ 0.00
	₹ 0.10 × u	201	400	₹ 4.70
≤ 500	₹ 4.80 × u	1	200	₹ 0.00
	₹ 0.10 × u	201	400	₹ 4.70
	₹ 0.15 × u	401	500	₹ 6.30
≤ 600	₹ 4.80 × u	1	100	₹ 0.00
	₹ 0.10 × u	101	400	₹ 4.70
	₹ 0.15 × u	401	500	₹ 6.30
	₹ 0.15 × u	501	600	₹ 8.40
≤ 800	₹ 4.80 × u	1	100	₹ 0.00
	₹ 0.10 × u	101	400	₹ 4.70
	₹ 0.15 × u	401	500	₹ 6.30
	₹ 0.15 × u	501	600	₹ 8.40
	₹ 0.20 × u	601	800	₹ 9.45
≤ 1000	₹ 4.80 × u	1	100	₹ 0.00
	₹ 0.10 × u	101	400	₹ 4.70
	₹ 0.15 × u	401	500	₹ 6.30
	₹ 0.15 × u	501	600	₹ 8.40
	₹ 0.20 × u	601	800	₹ 9.45
	₹ 0.20 × u	801	1000	₹ 10.50
> 1000	₹ 4.80 × u	1	100	₹ 0.00
	₹ 0.10 × u	101	400	₹ 4.70
	₹ 0.15 × u	401	500	₹ 6.30
	₹ 0.15 × u	501	600	₹ 8.40
	₹ 0.20 × u	601	800	₹ 9.45
	₹ 0.20 × u	801	1000	₹ 10.50
	₹ 0.25 × u	> 1000		₹ 11.55

TNEB Bill Calculator Old vs New Tariff - What Changed?

Here's a simple comparison for consumers wondering what changed between the old and new scheme:

	Old Scheme	New Scheme (May 2026)
Free Units	100 units	200 units
101–200 Unit Cost	₹2.35/unit	₹0.00 (free)
Who Benefits Most	Very low consumers	Households using 100–200 units

If your bi-monthly consumption is 200 units or less, your bill is now ₹0 under the new scheme.

How to Calculate Your TNEB Electricity Bill Online

The first thing you need is your consumed units - check your electricity meter or EB card installed at your home. Once you have the units, enter them in the calculator above.

For an itemised slab-by-slab breakdown of your charges, you can also try this TANGEDCO bill calculator 2026 which shows exactly how each unit slab contributes to your total bill.

If you pay through UPI apps like Google Pay or PhonePe, they will automatically notify you once your bill is generated and also offer Auto Pay to avoid missing due dates.

EB Bill Calculator for Chennai Consumers

Chennai consumers follow the same unified TANGEDCO domestic tariff as the rest of Tamil Nadu. The 200 free units scheme applies statewide there is no separate EB bill calculator for Chennai. Simply enter your consumed units in the calculator above regardless of your district.

FAQs

Is there an EB bill calculator app for mobile?

There is no separate app needed — the calculator on this page works directly on your mobile browser. You can also bookmark it for quick access every billing cycle.

What is the cost of 250 units under the new tariff?

Under the May 2026 scheme, 250 units costs ₹235 (200 units free + 50 units × ₹4.70).

What is the cost of 300 units?

300 units costs ₹470 (200 units free + 100 units × ₹4.70).

Does the free units scheme apply to all connections?

No — only domestic/residential connections are eligible. Commercial and industrial connections are billed at separate rates.

How often is the TNEB bill generated?

TNEB generates bills for domestic consumers every two months (bi-monthly). The units on your bill cover a two-month consumption period.