Can I order RTB anytime? May 11, 2023 07:52 Updated No, you may order during offer period through the Bureau of Treasury’s website. Related articles How do I avail RTBs? Retail Treasury Bonds Due 2028 (RTB 28) FAQs What will be my proof of ownership for RTB? Where do I get the interest payments of RTBs? How often? Retail Treasury Bonds Tranche 27 (RTB27)