How do I renew my IRP account? IRP accounts may be renewed online through the Tennessee Taxpayer Access Point (TNTAP). You can also renew using paper forms by clicking here. July 16, 2018 20:59 Related articles Can IRP registrations be processed through the mail or electronically? What types of payments are accepted for IRP? How do I open a new IRP account? How do I add a truck to my IRP account? If a new vehicle is purchased, can the IRP registration be transferred?