How much is the MDR? April 26, 2021 04:52 Updated SME merchants accepting payment via TNG eWallet static QR code will be charged 0.5%. Related articles Is there a minimum settlement amount for MDR to be applied? What is Merchant Discount Rate (MDR)? Are all SME merchants subjected to MDR? When will TNG eWallet begin charging MDR to merchants? Can a merchant transfer the MDR cost to customers using TNG eWallet to make payment?