FMCSA MCS-150 FORM
MCS-150 Filing Service & DOT Biennial Updates
Same-Day Filing · Biennial Reminders · DOT-Compliant · No Rejections
Every 2 Yrs Renewal Cycle
Same Day Filing
5,000+ Carriers Helped
$0 Hidden Fees
FMCSA Direct Filing
What is the MCS-150 form?
The MCS-150 is the FMCSA’s Motor Carrier Identification Report. Every trucking company with a USDOT number must file an MCS-150 every two years to keep its DOT number active. This is called the biennial update, and missing it puts your operating authority at risk.
An MCS-150 filing service handles the form for you, confirms your information matches FMCSA records, and submits it directly to the federal portal the same day. The form covers your company name, address, mileage, vehicle count, driver count, and operation type.
Who needs to file an MCS-150?
Every active USDOT-registered carrier files MCS-150. The two situations that trigger it most often are these.
New Trucking Companies
An initial MCS-150 form trucking filing is required when you first register your USDOT number. This sets your baseline record with the FMCSA.
Biennial Update Cycle
Every active carrier files a DOT biennial update online every two years. The schedule is based on your DOT number, and missing it deactivates your authority.
Information Changes
Any change to your business name, address, fleet size, or operation type also triggers an MCS-150 update outside the regular two-year cycle.
Information Changes
Any change to your business name, address, fleet size, or operation type also triggers an MCS-150 update outside the regular two-year cycle.
How our MCS-150 filing process works
We file MCS-150 forms directly through the FMCSA portal the same business day. Most updates are confirmed in the FMCSA system within hours.
Submit Your Info
Provide your DOT number, current company info, fleet count, and annual mileage. About 5 minutes.
We Verify Details
Our team checks every field against FMCSA records to prevent rejections that can take weeks to resolve.
Direct FMCSA Filing
We submit your MCS-150 update to the FMCSA portal the same business day, with you copied on confirmation.
Update Confirmed
Your DOT record is updated and your biennial clock reset. We send proof of filing for your records.
What happens if you miss the biennial update?
Failing to file your MCS-150 on schedule causes the FMCSA to deactivate your USDOT number. Once deactivated, brokers and shippers cannot tender loads to you, your insurance may lapse, and reactivating requires filing the update plus correcting any associated compliance issues. The longer you wait, the harder it gets.
DOT Deactivation
FMCSA marks your USDOT number inactive. Load boards and broker carrier-vetting tools immediately filter you out.
Insurance Issues
Many commercial trucking insurance policies require an active DOT number. A deactivated number can trigger policy cancellation.
Reactivation Delays
Reinstating a deactivated DOT number takes longer than filing on time. You file the missed MCS-150 plus wait for FMCSA processing.
MCS-150 vs other recurring DOT filings
Several recurring filings keep your trucking operation in good standing. Here is how MCS-150 fits.
MCS-150
Biennial DOT update. Required every 2 years on a schedule based on your DOT number.
UCR
Annual unified carrier registration. Due by December 31 every year. Tied to fleet size.
IFTA Renewal
Annual fuel tax license renewal. Due by December 31. Quarterly returns required throughout the year.
BOC-3 Refile
Triggered by name or address changes. Not on a fixed schedule, but tied to MCS-150 changes.
Why choose Start 4 Truckers for MCS-150?
MCS-150 errors can deactivate your DOT number for weeks. We file thousands of these every year and know the rejection codes before they happen.
Same-Day Filing
Most MCS-150 updates are filed with the FMCSA the same business day you submit your information.
Rejection-Proof
We pre-check every field against FMCSA records. The errors that delay self-filers do not happen here.
Biennial Reminders
We track your DOT number's biennial date and remind you 30, 14, and 7 days before the deadline.
Mileage Coaching
Annual mileage reporting is the most-rejected MCS-150 field. We coach you on the right way to report.
Confirmation Records
You receive a copy of the filed MCS-150 and FMCSA confirmation for your records.
Live Support
Real humans answer your calls at (210) 588-9348 for every MCS-150 question.
Frequently asked questions
Starting a trucking business is not just about knowing how to drive. It is about building a legal, compliant operation that brokers will load, banks will fund, and the FMCSA will not shut down.
Your biennial MCS-150 schedule is determined by the last two digits of your USDOT number. The FMCSA publishes a chart matching the last two digits to specific months. Start 4 Truckers tracks your due date for you and sends reminders before the deadline.
Submission takes about 5 minutes through Start 4 Truckers. We file the same business day, and the FMCSA portal typically confirms the update within hours. Self-filers often face delays from incorrect mileage reporting or address mismatches.
The FMCSA charges no fee for an MCS-150 filing. Start 4 Truckers charges a flat service fee for filing the form correctly, monitoring its status, and sending you the FMCSA confirmation. Pricing is the same whether it is your first filing or a biennial update.
If you intend to keep the DOT number active, yes. If you are permanently shutting down, you should file Form MCS-150 marking the operation as ceased to deactivate the DOT number cleanly. We can handle either path.
You need your USDOT number, current company name and address, fleet size, total drivers, types of vehicles, total miles driven in the previous calendar year, and operation type (interstate, intrastate, hazmat). We collect everything in one short form.
Yes, the FMCSA portal allows self-filing for free. The most common reason carriers use a DOT number update service is to avoid the rejection issues that delay self-filers, especially around mileage reporting and address mismatches. We file thousands of these per year.