What mileage do I report on my MCS-150?
Annual highway miles operated by the carrier's fleet during the past 12 months — separated by total miles and by hazmat miles (if applicable). The figure should reflect actual fleet operations and is typically pulled from IFTA quarterly filings, dispatcher logs, or the carrier's own mileage tracking.
The MCS-150 mileage field asks for annual highway miles operated by the carrier — the same metric the carrier reports on quarterly IFTA returns. For most carriers that means total miles driven on public highways across all power units during the most recent 12-month period.
Off-highway mileage (yard moves, farm operations, private-property miles) is not counted. Fleet-internal training mileage typically is not counted. Trailer miles do not count separately — only power-unit miles.
For a single-truck owner-operator, the mileage figure typically lands between 100,000 and 130,000 miles per year. For a 50-truck regional fleet, the figure is roughly 4-6 million miles. The IFTA quarterly filings give the most accurate per-mile data and most carriers cross-reference IFTA when preparing the MCS-150.
Hazmat carriers report a separate hazmat-mileage figure on the MCS-150B (the hazmat companion form). The non-hazmat mileage on the regular MCS-150 should reflect total fleet miles regardless of cargo type — the hazmat-specific figure on the MCS-150B is a subset of that total.