Can I file the MCS-150 late without penalty?

Technically, the penalty structure allows fines from the date the filing was due. However, in practice, FMCSA often focuses on getting first-time late filers to submit the update rather than assessing maximum penalties. Filing immediately upon realizing you are late is always the best course of action.

How do I reactivate a deactivated USDOT number?

File the overdue MCS-150 update through the FMCSA portal and contact FMCSA to request reactivation. Processing typically takes 3-7 business days. You cannot operate during the reactivation period. Any assessed penalties must also be addressed.

MCS-150 Late Filing Penalty: Fines for Missing the Biennial Update

$1,000 - $10,000

total (up to $1,000/day)

CFR Reference: 49 CFR 390.19, 49 CFR 390.21

Failure to file the MCS-150 biennial update can result in penalties of up to $1,000 per day, capped at $10,000. More critically, FMCSA can deactivate your USDOT number, which effectively shuts down all commercial vehicle operations. Your vehicles can be placed out-of-service at any roadside inspection.

How This Violation Works

The MCS-150 biennial update is due every 24 months based on the last two digits of your USDOT number. The filing itself takes about 10 minutes online and costs nothing. Despite this simplicity, many carriers miss the deadline because they do not know their filing month or forget about it. FMCSA first sends a warning letter. If the update is not filed within the specified period, FMCSA can assess penalties and deactivate the USDOT number. A deactivated USDOT number means the carrier is no longer authorized to operate. Any vehicle operating under a deactivated USDOT can be placed out-of-service at a roadside inspection.

How Penalties Are Assessed

FMCSA identifies overdue filers through their database and sends notification letters. If the carrier does not respond, penalties are assessed and the USDOT number is deactivated. The $1,000/day penalty (up to $10,000 maximum) is assessed from the date the filing was due. In practice, FMCSA often focuses on getting the update filed rather than collecting penalties for first-time offenders, but repeat offenders face the full penalty structure.

Real-World Examples

A small carrier in Missouri had their USDOT number deactivated after missing two consecutive biennial update deadlines (4+ years without filing). A vehicle was placed OOS at a weigh station, and the carrier had to file both overdue updates, wait for USDOT reactivation, and pay a $5,000 penalty.

An owner-operator simply did not know about the biennial update requirement. After 3 years of non-filing, they received a deactivation notice. Filing the update online took 10 minutes, but reactivation processing took 5 business days during which the truck sat idle.

How to Avoid This Fine

1Look up your filing month based on the last two digits of your USDOT number and set a recurring calendar reminder.
2File the update online through the FMCSA portal. It takes about 10 minutes and is free.
3Check your FMCSA SAFER profile to see your last MCS-150 date and when the next one is due.
4Even if nothing has changed, you must still file the update. File early in your filing month.
5Use RigKeeper to track your biennial update deadline and receive reminders before the due date.

Frequently Asked Questions

Can I file the MCS-150 late without penalty?: Technically, the penalty structure allows fines from the date the filing was due. However, in practice, FMCSA often focuses on getting first-time late filers to submit the update rather than assessing maximum penalties. Filing immediately upon realizing you are late is always the best course of action.
How do I reactivate a deactivated USDOT number?: File the overdue MCS-150 update through the FMCSA portal and contact FMCSA to request reactivation. Processing typically takes 3-7 business days. You cannot operate during the reactivation period. Any assessed penalties must also be addressed.

Related Compliance Guides

MCS-150 Biennial Update: How to File and Stay Compliant

Every motor carrier with a USDOT number must update their MCS-150 form every two years, even if nothing has changed. Miss the deadline and you face up to $1,000 per day in penalties, and FMCSA can deactivate your USDOT number entirely.