Quarterly — IFTA returns
- Q2 2026 return: due July 31, 2026 (that's this month)
- Q3 2026: due November 2, 2026 (Oct 31 falls on a Saturday — next business day; verify with your base jurisdiction)
- Q4 2026: due February 1, 2027 (Jan 31 is a Sunday)
- Details and rate matrix: see our IFTA page and iftach.org
Fall
- Late September: IRS publishes the new per diem notice — the $80/day transportation rate can change effective Oct 1. Our per diem calculator is updated the week it drops.
- October 1: UCR registration for 2027 opens (plan.ucr.gov); recommended enforcement for the new year typically begins January 1. Fees are set by bracket — file through the official portal, not third-party upsell sites.
Winter
- December: IRS announces the next standard mileage rate. 2026 was unusual — 72.5¢/mile Jan 1–Jun 30, then a mid-year raise to 76¢/mile from July 1. (That's the light-vehicle rate for gig and personal-vehicle business miles — not a heavy-truck cost figure.)
- January 1: new IFTA rates take effect for Q1; UCR enforcement for the year typically begins.
Spring
- CVSA International Roadcheck: the 2026 blitz ran May 12–14. 2027 dates are announced by CVSA in early spring — this page will carry them when official.
Carrier-specific (know your own dates)
- MCS-150 biennial update — due every two years in the month determined by your USDOT number (next-to-last digit sets the month, last digit sets odd/even year). Required even if nothing changed.
- IRP cab card renewal — month varies by state and account.
- DOT medical certificate — your own expiration; don't let dispatch find out before you do.
- Annual vehicle inspection — 12 months from your last one.