전기요금 계산기 - 누진제·할인

※ This is an unofficial information guide. It is not affiliated with public institutions such as the Korea Electric Power Corporation (https://cyber.kepco.co.kr); please proceed with applications and payments through official channels.

Have you ever felt at a loss as to why your monthly electricity bill is so high?

Residential electricity rates are subject to a progressive pricing system where the unit price increases as usage increases. This progressive structure is the very reason why your bill can increase by more than 20,000 won just by using an additional 100 kWh. The 'Electricity Bill Calculator' is an unofficial information calculation app that compiles the progressive pricing unit price table, discount schemes, and practical saving tips all in one place.

[Electricity Bill Summary]

Residential = Basic Charge + Energy Consumption Charge (Progressive) + Climate & Environment Charge 9 won + Fuel Cost Adjustment Charge 5 won + VAT 10% + Electricity Industry Infrastructure Fund 3.7%. You need to examine the bill item by item to see where the money is leaking.

** [2026 Progressive Rate Table]

• Tier 1: 0–200 kWh — 120.0 won per kWh

• Tier 2: 200–400 kWh — 214.6 won per kWh (approximately 1.8 times Tier 1)

• Tier 3: Over 400 kWh — 307.3 won per kWh (approximately 2.6 times Tier 1)

• Super User: Over 1,000 kWh — 736.2 won per kWh (approximately 6.1 times Tier 1)

[Summer/Winter Progressive Rate Easing]

During July and August, when air conditioning and heating loads are high, the rates will be temporarily expanded to Tier 1 (0–300 kWh) and Tier 2 (300–450 kWh). Even if you use the same 350 kWh, you will be subject to Tier 1 rates during the summer, resulting in a reduced bill.

[Discount System You'll Regret Missing]

• Large Families (5 or more people) — 30% per month, limit of 16,000 KRW

• Multi-child Families (3 or more children) — 30% per month, limit of 16,000 KRW

• Households with Newborns — 30% for 3 years from the date of birth, limit of 16,000 KRW

• Recipients of Basic Livelihood Support, Near-poverty, and Persons with Disabilities — Fixed discount based on eligibility

• 1% for automatic transfer + 200 KRW for electronic bills (can be applied concurrently)

※ This is not applied automatically; you must apply directly via KEPCO ON or 123.

** [What This App Helps You With]

✓ Self-diagnosis of risk for Progressive Tier 3 – Identify the likelihood of reaching this level based on usage patterns

✓ Electricity bill saving practice checklist – 11 steps applicable immediately

✓ Manage usage check timing with D-Day notifications for meter reading and payment due dates

✓ KEPCO 2026 unit price list, basic charges, climate, and fuel adjustments at a glance

✓ Guidance on discount application locations, supporting documents, and eligibility for multiple discounts

✓ Usage pattern guides for appliances such as air conditioners, electric heaters, and refrigerators

✓ 19 Frequently Asked Questions (FAQ) – Super users, TV license fees, responding to power outages, etc.

✓ 50 tips on electricity basics + 50 quizzes on the progressive pricing system and discounts

[Recommended for These People]

• Those who face a massive electricity bill every summer and winter

• Those who cannot understand how the progressive pricing system is applied even after looking at their bills

• Those who are eligible for large family, childbirth, or welfare discounts but have missed the application deadline

• Households using electric heaters or electric water heaters For those who frequently miss meter readings or payment due dates and incur late fees

[Topics Covered]
We have organized all the information necessary for managing electricity bills in one place, including the 3-tier progressive residential rate system, summer and winter rate relief, climate and environmental charges and fuel cost adjustment charges, discounts for large families, multi-child households, families with newborns, and welfare benefits, discounts for automatic transfers and electronic bills, utilizing the KEPCO ON app, managing meter readings and due dates, tips for saving on air conditioners, electric heaters, and refrigerators, energy efficiency ratings, standby power cutoff, and responses to power disconnection and installment payments.

[Advertisement]

Advertisements are included on some screens to operate this free app. They are clearly separated from the content and do not interfere with self-diagnosis, checklists, or information verification.

[Disclaimer]

※ This app is not the official app representing Korea Electric Power Corporation (KEPCO) or any government agency.

※ This app provides information regarding electricity bills and does not replace KEPCO's official application or payment procedures. Please check the exact unit price, discount application, and billing details at the KEPCO Cyber ​​Branch. ※ Progressive rate unit prices, discount rates, and basic charges are subject to change following revisions to KEPCO's rate plans.

※ Source: KEPCO Cyber ​​Branch (https://cyber.kepco.co.kr)