View and print a RTO certificate Attachments View and print a RTO certificate [409.3 kB]Listen to PDF View and print a RTO certificate [392.9 kB] Date: 1 July 2018 This Quick Reference Guide (QRG) will take you through the steps to view and print a Refundable Tax Offset (RTO) certificate in the NRAS Portal. Last updated: 12 July 2018 - 4:37pm