UCR Refund or Wrong Bracket: How to Fix a UCR Registration

Reviewed by Austin Park, founder of ICR Filings · Updated October 23, 2026

The short answer

Fleet changes after you register are not a wrong bracket. They count next year, and nothing needs to be filed.
Overpaid? Request a refund in the UCR system within 60 days of payment for the current year (30 days for other open years).
Refunds take about 4 to 6 weeks if approved and go back to whoever paid. A request can trigger a review of your registration.
Underpaid? Pay the difference before a state audit finds it, or risk fines on top.

Your UCR fee is set by how many commercial vehicles you run in interstate commerce, so a wrong count puts you in the wrong bracket. Too high and you overpaid; too low and you owe the difference. Which one it is decides what you can do and how fast you have to act.

First: did your fleet just change?

If you added or sold trucks after you registered, there is nothing to fix. The UCR Plan says changes in the number of vehicles during the registration year are not reflected until the following year. You use your new count when you register next year.

Common reasons for a wrong bracket

Counting trailers. Trailers do not count on their own.
Counting trucks that only run within one state, which can be left out.
Using an old MCS-150 count after the fleet shrank or grew.
A typo, or picking the bracket by guess instead of by count.

The rules for counting are in our 2027 UCR fees guide, and you can check the count on your FMCSA record before you decide anything.

If you paid too much: the refund rules

The UCR Plan's refund procedure (revised March 6, 2025) sets these rules:

Deadline: the request must be made within 60 days after the registration was paid and validated, for the most recent registration year. For any other year that is still open, the limit is 30 days.
Who can ask: the carrier, a permitting service, state users, or UCR system support. Requests are made only in the UCR registration system.
Review: your base state checks that the carrier is in good standing and that the refund is proper, within 10 business days. Requests over $1,000 get audit procedures to verify the numbers.
Timing: about 4 to 6 weeks in total if approved.
Where the money goes: always to whoever made the original payment. A card payment is refunded to the card. An e-check or paper check payment is refunded by check or ACH.
If rejected: you get an email, and the registration goes back to how it was.

One caution from the procedure itself: a refund request can trigger a review or audit of your registration. Make sure the lower count is right before you ask.

Missed the 60 days?

The published procedure has no other route for a carrier that misses the window. The one exception it lists is a refund that comes out of an audit by the UCR Board or your base state, and only while that registration year is still open. We have asked the UCR Plan how late requests are handled and will update this guide with their answer.

If you paid too little

Under-registering is what UCR audits look for. The UCR Plan's state audit rules have base states review carriers that dropped to a lower bracket and confirm the vehicles were properly left out. A carrier found to have underpaid must pay the shortfall, and states may add fines or penalties. A carrier that neither pays nor justifies the lower count can have its current-year UCR registration suspended.

The audit rules describe these cases being closed when the carrier makes a one-time adjustment in the UCR registration system, which means paying the difference up to the right bracket. Correcting it before a state audit finds it avoids the risk of fines on top of the difference.

Keep your MCS-150 in line

The UCR Plan's audit rules work from FMCSA's MCS-150 records, so the two counts should match. If your MCS-150 lists more or fewer trucks than you really run, update it too.

Want it handled?

We check your count against your FMCSA record, tell you whether a refund or correction applies (or that nothing needs filing), and submit the request. UCR Correction or Refund ($49 service fee). With a 60-day deadline on refunds, sooner is better.

Common questions

Can I get a UCR refund?

Yes, if you registered in too high a bracket and request it within 60 days after the registration was paid and validated, for the most recent year. Requests are made only in the UCR registration system.

How long does a UCR refund take?

About 4 to 6 weeks if approved. Your base state reviews it within 10 business days, and requests over $1,000 get audit procedures.

I sold a truck after registering. Can I get money back?

No. The UCR Plan says changes in vehicle count during the year are not reflected until the next year.

Do trailers count toward my UCR bracket?

No. Counting trailers is one of the most common reasons carriers land in too high a bracket.

What if I registered in too low a bracket?

Pay the difference with a one-time adjustment in the UCR system. Base states audit carriers that dropped to a lower bracket, and can add fines or suspend the registration if it is not justified or paid.

I missed the 60-day window. Is there another way?

The published procedure has no other route for a late request. The one exception is a refund that comes out of an audit by the UCR Board or your base state while the year is still open.

Official sources

This guide is general information, not legal advice. Rules and fees change, so confirm with the official source before you file.

Related guides

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