KT Early Termination Refund Example

Based on KT Official Penalty Rates for 12-Month Contracts

This table compares the estimated refund penalties (discount return fees) for two KT mobile plans — Welcome 5 Plan (Budget Plan) and Simple 110G Plan (Basic Plan) — if canceled early during a 12-month selective contract (25% discount), according to the official discount refund rate schedule:

| Usage Month | Welcome 5 Plan (Budget) Monthly Discount: ₩20,250 | Refund Penalty (₩20,250 × Rate) | Simple 110G Plan (Basic) Monthly Discount: ₩22,750 | Refund Penalty (₩22,750 × Rate) | | --- | --- | --- | --- | --- | | 1 | ₩20,250 | ₩0 (0%) | ₩22,750 | ₩0 (0%) | | 2 | ₩40,500 | ₩0 (0%) | ₩45,500 | ₩0 (0%) | | 3 | ₩60,750 | ₩0 (0%) | ₩68,250 | ₩0 (0%) | | 4 | ₩81,000 | ₩0 (0%) | ₩91,000 | ₩0 (0%) | | 5 | ₩101,250 | ₩0 (0%) | ₩113,750 | ₩0 (0%) | | 6 | ₩121,500 | ₩0 (0%) | ₩136,500 | ₩0 (0%) | | 7 | ₩141,750 | ₩28,350 (20%) | ₩159,250 | ₩31,850 (20%) | | 8 | ₩162,000 | ₩32,400 (20%) | ₩182,000 | ₩36,400 (20%) | | 9 | ₩182,250 | ₩36,450 (20%) | ₩204,750 | ₩40,950 (20%) | | 10 | ₩202,500 | ₩263,250 (130%) | ₩227,500 | ₩295,750 (130%) | | 11 | ₩222,750 | ₩289,575 (130%) | ₩250,250 | ₩325,325 (130%) | | 12 | ₩243,000 | ₩0 (contract complete) | ₩273,000 | ₩0 (contract complete) |

📌 Refund Penalty Policy — Based on Official KT Guidelines

KT’s official discount return fee (“할인반환금”) structure for 12-month selective contracts:

Use Period (Months)	Refund Rate Applied to Discount Received
1–6 months	0% refund fee
7–9 months	20% of total discount received
10–12 months	130% of total discount received
Full 12 months	✅ No penalty

These rates are defined in KT’s official Terms of Service – Key Guidebook (September 2020 revision).

📝 Summary

Using the Welcome 5 Plan for 9 months → ~36,450 KRW refund (20% of 182,250 KRW discount)
Using the Simple 110G Plan for 9 months → ~40,950 KRW refund (20% of 204,750 KRW discount)
Using either plan for 10+ months and canceling early causes significant penalties (130%) — more than the total discount received.
Completing the full contract of 12 months results in 0 KRW penalty.

🔒 These refund values are estimates based on official discount rates. Actual refund amounts may vary depending on exact billing history. Always check with KT Customer Service (dial 114) or see your specific contract in the KT mobile app.

Official KT Reference Citations

[KT Shop - Selective Contract Discount, Fee Discount List]1
[KT Shop - Discount Return Fee Guidelines]2
[KT Global Support FAQ (English)]5
[KT Service Change & Official Announcements]3
[Industry news: rules regarding public subsidy and selective discount]4 6 7

All details above are strictly from KT's official channels, regulatory disclosures, and direct support documents. For customer-specific eligibility, penalties, and current eligible rate plans, see KT’s official customer portal or consult with KT’s customer representatives.