Can I file my IFTA return online? Yes, the easiest way to file your IFTA return online is through the Tennessee Taxpayer Access Point (TNTAP). July 16, 2018 20:32 Related articles What are IFTA reporting requirements? How do I renew my IRP account? When do my IFTA license and decals expire? Is a USDOT number required prior to registering for IRP? Will TNTAP replace the old system for IRP for doing things such as transfers, renewal and supplements?