How long must IRP and IFTA “operational records” be retained by the carrier?
The International Registration Plan (IRP) requires the licensee to preserve the records on which their apportioned registration application is based for the current application year, plus the three preceding mileage years. The International Fuel Tax Agreement (IFTA) requires the records used for the quarterly tax return to be retained for four years from the return due date or filing date, whichever is later, plus any time period included as a result of waivers or jeopardy assessments. If a licensee fails to provide the required records for audit, the four-year retention requirement is extended until the required records are provided.
