| Records related to contracts or cancellations | Electronic Commerce Act | 5 years |
| Records related to payment and supply of goods | 5 years |
| Records related to consumer complaints or dispute resolution | 3 years |
| Records related to display/advertising | 6 months |
| Records related to all transactions prescribed by tax law | Tax Act | 5 years |
| Records related to electronic financial transactions | Electronic Financial Transactions Act | 5 years |
| Records related to service visits | Communication Privacy Act | 3 months |
| Records related to customer verification and reporting of suspected transactions | Law on the Reporting and Use of Specific Financial Transaction Information | 5 years from the date of service withdrawal |
| Records related to the circulation of electronic documents through a certified electronic address | Electronic Document and Electronic Transaction Act | 10 years |
| Records related to the sending and retransmission of text messages | Telecommunications Business Act | 6 months |