How do I pay another department for services? Payments, transfers, and cost sharing can be completed using an Interdepartmental Transaction (IDT). For instructions on how to create an IDT, click on this link to download the IDT Training Guide. Read more: IDB/SUB for Service Centers Training Internal Transfer Guide for IDT and O60 Transactions Related article: How do I find out where a SUB or IDT billing came from? Updated on May 19, 2022 Tagged: IDTInter Departmental Transaction Was this article helpful? Yes No Need Support?Can't find the answer you're looking for?Contact Support