How much is the broker’s fee for RTBs? February 28, 2020 02:46 Updated None. There is no transaction fee for the primary issuance of RTBs. Related articles What will be my proof of ownership for RTB? Can I order RTB anytime? How do I avail RTBs? What is a Premyo Bond? Can I order RTB online even if my bank account is not Metrobank?