The Complete Guide to UCR Filing (2026 Registration Year)
What UCR is
The Unified Carrier Registration is a federally mandated annual registration for anyone operating commercial motor vehicles in interstate commerce — carriers (private and for-hire), brokers, freight forwarders, and leasing companies. Fees fund state enforcement programs; 41 states participate and enforce at roadside.
Who must register for 2026
- Any carrier crossing state lines, even once — including single-truck owner-operators
- Brokers and freight forwarders (lowest bracket, no trucks needed)
- Leasing companies supplying vehicles to interstate carriers
Who doesn't: purely intrastate operators who never cross state lines, and government agencies. Based in a non-participating state (AZ, FL, HI, MD, NV, NJ, OR, VT, WY)? You still register through a base state.
The 2026 fees
| Power units | Fee |
| --- | --- |
| 0–2 | $46 |
| 3–5 | $138 |
| 6–20 | $276 |
| 21–100 | $963 |
| 101–1,000 | $4,592 |
| 1,001+ | $44,836 |
Your count comes from your latest MCS-150. Trailers never count. Fleet shrank? Update the MCS-150 before registering and drop a bracket.
Deadlines and enforcement
Registration for each year opens October 1 of the prior year; enforcement begins January 1. Roadside penalties run $300–$1,000+ per state, plus out-of-service orders until you register.
The fastest filing
Filing Copilot™ pulls your FMCSA record, computes the exact bracket, opens UCR.gov and fills the registration live — you review and submit, and the government fee goes directly to UCR.gov. Check your bracket first with the UCR fee calculator.