Vietnam Electricity Bill Calculator

Q: Which tariff is used?

The one in force on `date` (or the reading date `to`): QĐ 2892/QĐ-BCT from 1/11/2026, earlier schedules before. Every answer names the decision.

Compute an EVN electricity bill: the 5-tier household tariff from 1/11/2026, VAT, prorating across a price change, business rates and room splits.

Result

Press “Run” to see the result.

Send the kWh used (or the two meter readings) and get the household bill under the EVN retail tariff in force on that date: the 5-tier schedule of QĐ 2892/QĐ-BCT from 1/11/2026 (100 / 100 / 200 / 300 kWh, then the rest), or the earlier 6-tier schedules (QĐ 1279/QĐ-BCT, QĐ 2699/QĐ-BCT). The answer lists every tier, the amount before VAT, VAT (8% until 31/12/2026 under NĐ 174/2025, 10% after) and the total. compare=true adds the difference against the previous tariff.

When the reading period (from – to) spans a tariff change, the kWh and the tier sizes are split by days, as EVN does without remote-read data. persons applies the tenant quota (4 registered persons = one household), tenant_flat=true bills everything at the tier-2 price (short leases without declared tenants), and amount works backwards from a bill to the kWh.

For boarding houses, rooms splits a bill between sub-meters: proportionally (common areas shared equally, by use, or kept by the landlord), at a fixed price per kWh, or with each room billed as its own household. customer also covers production, business, accommodation, EV charging, schools and public lighting with peak / normal / off-peak kWh by voltage.

Use this in your code

curl "https://apibox.io.vn/v1/vn-electricity?kwh=250" \
  -H "Authorization: Bearer YOUR_API_KEY"

const res = await fetch('https://apibox.io.vn/v1/vn-electricity?kwh=250', {
  method: 'GET',
  headers: {
    Authorization: 'Bearer YOUR_API_KEY',
  },
});
const data = await res.json();
console.log(data);

import requests

res = requests.get(
    "https://apibox.io.vn/v1/vn-electricity?kwh=250",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    timeout=30,
)
print(res.json())

<?php
$ch = curl_init('https://apibox.io.vn/v1/vn-electricity?kwh=250');
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => ['Authorization: Bearer YOUR_API_KEY'],
]);
$response = curl_exec($ch);
print_r(json_decode($response, true));

API documentation → Get a free API key

FAQ

Which tariff is used?

The one in force on date (or the reading date to): QĐ 2892/QĐ-BCT from 1/11/2026, earlier schedules before. Every answer names the decision.

How is a period spanning a price change handled?

kWh and tier limits are split pro rata by days between the old and new tariff, which is what EVN does when there is no remote-read data.

Is VAT included?

Tariff prices exclude VAT; the answer adds VAT at 8% until 31/12/2026 (NĐ 174/2025) and 10% from 2027. Override with vat_percent.