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Electricity Duty on Your Bill: What It Is and How States Differ

4 min read · Updated 21 July 2026

The "ED" or "Electricity Duty" line on your bill is not a DISCOM charge at all — it is a state government tax collected through the bill and passed to the state treasury. Because each state legislates its own duty, the same consumption can carry a very different tax burden depending on where you live.

How duty is levied

States use one of two bases:

Percentage of charges — duty as a % of the energy charge (and in many states the fixed charge and fuel surcharge too). Because FPPA is added first, a fuel surcharge increase also raises the duty rupees.
Paise per unit — a flat ₹/kWh levy independent of the rate you pay.

The percentage varies enormously by state and by consumer category. Among the schedules on our tariff pages, Maharashtra domestic carries one of the highest percentage duties, Delhi and Tamil Nadu sit at the low single digits, and Karnataka publishes duty-inclusive tariffs — no separate ED line appears on a BESCOM bill at all.

Who is exempt

Exemptions are also state policy. Common ones: agricultural pumpsets, lifeline/BPL domestic slabs, government water works, and some industries during promoted periods. If your category is exempt, the ED line should print zero — worth checking after any category change on your bill.

How to check yours

Open your state's page from the tariff directory — the "Additional charges" row of each category card shows the duty applied.
Verify the base: recompute duty% × (energy + fixed + FPPA) — if the printed figure is higher, the bill may be compounding on arrears, which is worth a complaint.
Use the calculator, which applies each state's duty on the correct base automatically.

Frequently asked questions

What is electricity duty on my bill?

Electricity duty is a tax levied by your state government on electricity consumption, collected by the DISCOM through your bill and remitted to the state treasury. It is set by state law, so both the rate and the base differ from state to state.

Why is electricity duty so different between states?

Duty is state legislation, not a central levy. Each state chooses the base (percentage of charges vs paise per unit), the rate, and the exemptions — which is why Maharashtra’s domestic duty is in double digits while Delhi’s is 5% and Karnataka folds it into the printed tariff entirely.

Is electricity duty charged on the fuel surcharge (FPPA)?

In most states, yes — duty is applied after FPPA is added, i.e. on energy charge + fixed charge + FPPA. That ordering means a fuel-surcharge revision nudges your duty up too.

Are any consumers exempt from electricity duty?

Many states exempt agricultural connections, lifeline/BPL domestic slabs and certain government or promoted-industry categories. Exemptions are listed in each state’s duty notification; if you qualify, the ED line on your bill should be zero.

Now check your own bill

Reading is half the job — run your own units through your DISCOM's real slab rates, fixed charges and FPPA and get an itemised bill in seconds. Free, no sign-up.

Open the electricity bill calculator →

Related on TheDiscomBill

Electricity bill glossaryEvery charge line on an Indian bill, in plain language

More guides

General guidance based on publicly available tariff orders and regulations; specifics vary by state, DISCOM and consumer category. Verify against your DISCOM's official schedule or your printed bill.