Free Tool
MCS-150 Biennial Update Due Date Checker
Every motor carrier must update its MCS-150 (Motor Carrier Identification Report) with the FMCSA every two years — even if nothing changed. Your deadline is built into your USDOT number. Enter it below to see your exact filing month and next due date.
The last digit of your USDOT number sets your filing month; the next-to-last digit sets whether you file in odd- or even-numbered years.
This tool runs entirely in your browser — your USDOT number is never stored or sent anywhere.
Enter your USDOT number to see your biennial update deadline.
Update on FMCSA.gov →Based on the FMCSA biennial update schedule (49 CFR 390.19). You must also file an updated MCS-150 within 30 days of any change to your legal name, address, or other registration information. This is general information, not legal advice — confirm your status with the FMCSA.
Why the biennial update matters
Missing your MCS-150 biennial update can lead to deactivation of your USDOT number and civil penalties — even if your business information hasn't changed and even if you've stopped operating (you must still file to report that). Learn more in our USDOT number guide and FMCSA compliance guide.
Keeping FMCSA registration current goes hand-in-hand with your HVUT obligations — see FMCSA & USDOT authority risks, or check your tax deadline with the 2290 due-date checker.
MCS-150 update deadlines, explained
The MCS-150 is the form carriers file with the FMCSA to keep their USDOT number active. This checker finds your update month, and here is the rule behind the two year schedule.
The biennial update rule
Every carrier has to update its MCS-150 every two years, even if nothing has changed. The month it is due is set by the last two digits of your USDOT number, and the year depends on whether the next to last digit is odd or even.
How the schedule is set
- The next to last digit of your USDOT number being odd or even decides the year you update.
- The last digit of your USDOT number decides the month.
- Missing the update can deactivate your USDOT number and put your operating authority at risk.
MCS-150 and Form 2290
The MCS-150 is separate from your Heavy Vehicle Use Tax, but both keep a truck legal on the road. Staying current on your USDOT registration and your Form 2290 stamped Schedule 1 avoids registration holds and roadside problems.
Frequently asked questions
How often do I file the MCS-150?
Every two years. The update is biennial, even when none of your information has changed.
How is my MCS-150 due date set?
By your USDOT number. The last digit sets the month and the next to last digit, odd or even, sets the year.
What happens if I miss the MCS-150 update?
The FMCSA can deactivate your USDOT number, which can stop your operating authority until you update.
Is the MCS-150 the same as Form 2290?
No. The MCS-150 is FMCSA registration. Form 2290 is the federal Heavy Vehicle Use Tax. Both are needed to keep a truck legal.
Ready to file your Form 2290?
Consulics is an IRS authorized e-file provider. Get your stamped Schedule 1 back in minutes, with free VIN corrections.
This tool and the information here are general guidance based on IRS publications, not tax or legal advice. Amounts and rules can change. Always confirm current details with the IRS or a qualified professional.