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MCS-150 biennial update: how to file it in Motus, and where it goes wrong
Work out your due month before anything else. If it has passed, file now: FMCSA has paused deactivations for missed biennial updates since June 1, 2026, but the update is still required, the pause has no end date, and the notice says nothing about the civil penalties: up to $1,584 for each day the violation continues, capped at $15,846 (49 CFR part 386, appendix B, adjusted for inflation; the statute's base figures are $1,000 a day and $10,000).
It is free, and if you were deactivated, this is the fix
FMCSA charges nothing to update a registration, and a USDOT number deactivated for a missed biennial update is reactivated by filing it. Since June 1, 2026 FMCSA has also temporarily suspended inactivating numbers for missed updates while Motus stabilizes. No end date has been announced, so treat it as breathing room rather than a waiver.
What the MCS-150 is, and why the deadline catches people
Under 49 CFR 390.19T every motor carrier files Form MCS-150 before it begins operating and then updates it every 24 months. The schedule comes from the USDOT number itself: the last digit sets the month (1 is January through 9 is September; 0 is October) and the next-to-last digit sets the year, odd files in odd years, even in even. Nothing arrives in the mail, and two carriers who got their numbers the same week can be due nine months apart.
The form is also your identity in every FMCSA system: legal name, principal place of business, operation classification, cargo, hazmat, power units, drivers and annual mileage. FMCSA asks that changes be updated in a timely manner rather than left for the next cycle, and the records brokers and insurers actually read (SAFER and the Safety Measurement System) are built from it.
Since May 2026 the update is filed in Motus, FMCSA's replacement for the legacy registration systems. Motus is claimed with the Login.gov email of the company official on your FMCSA Portal account, and Portal accounts are disabled after 90 days of inactivity and archived after 12 months, restoring one goes through the FMCSA Contact Center. Because the filing is biennial, the login is the step that fails, not the form.
What to do, in order
- 1
Work out your due month and year
Take the last digit of your USDOT number: that is the month (1 is January … 9 is September, 0 is October). Take the next-to-last digit: odd means odd years, even means even years. You have until the last day of that month. USDOT 1234567 is due in July of even years; USDOT 1234578 is due in August of odd years. Write the date down before you open Motus, or use the free MCS-150 due date calculator, which does the same arithmetic. Getting it wrong in either direction is the first way this goes wrong.
- 2
Get into Motus two weeks before the deadline, not the day of
Motus is at motus.dot.gov, linked from fmcsa.dot.gov/registration. First access is claimed by the company official on your FMCSA Portal account, using the same Login.gov email. If that person has left, the email is gone, or the account has sat unused for 90 days, it needs the FMCSA Contact Center before you can file anything, and that is the part that takes days.
- 3
Pull the numbers you will be asked for
Power units by how you hold them (owned, term-leased, trip-leased); drivers, split interstate and intrastate, and how many hold CDLs; and vehicle miles traveled for the previous calendar year. Your ELD or IFTA mileage totals are the right source for VMT. Use real figures, the section below explains what these two numbers do to your safety scores.
- 4
Open the biennial update and check every section, not just what changed
Legal name and DBA exactly as registered; principal place of business (a physical address) and mailing address; a phone and email that reach you; company officials; operation classification (for-hire, private, exempt); cargo carried; hazmat; and the vehicle, driver and mileage figures. The update is required even if nothing changed: in that case you are confirming the record, not editing it, and it still has to be submitted.
- 5
Be careful with the classification boxes
Checking a classification box is not the same as holding the registration for it. Marking yourself for-hire interstate does not grant operating authority, and marking hazmat does not give you a hazmat safety permit. Answer what you are and what you hold. If the answer should be different, that is a separate application, not an MCS-150 edit.
- 6
Submit, then verify it landed
Motus confirms the submission on screen, save it. A day or two later, look yourself up in SAFER by USDOT number: the MCS-150 date on the snapshot should have moved and, if you were deactivated, the operating status should have changed. If SAFER still shows last cycle's date after a few days, the update did not take. Do not assume it did.
- 7
Keep the proof and calendar the next one
Keep the confirmation with your compliance records. It is what settles the argument when a broker or insurer says you are out of date. The next update is due in the same month two years on, and filing early does not move it, because the schedule comes from the number, not from your last filing. Put it somewhere that will actually remind you.
Where this goes wrong, and what it costs
The form takes fifteen minutes. These are the judgment calls around it that deactivate numbers and quietly damage safety scores.
Getting the due date wrong
Carriers count 24 months from their registration date, or from their last filing, and both are wrong, the schedule comes from the digits of the number. Miss it and the stated consequence under 390.19T is deactivation of the USDOT number plus civil penalties of up to $1,584 for each day the violation continues, capped at $15,846 (49 CFR part 386, appendix B, adjusted for inflation; the statute's base figures are $1,000 a day and $10,000). FMCSA has paused the deactivations since June 2026; its notice says nothing about the penalties.
Treating the pause as a waiver
The June 2026 notice pauses inactivation while Motus stabilizes. It still asks registrants to complete their biennial updates, it gives no end date, and it does not say how carriers already behind will be handled when it lifts. Meanwhile brokers vet you on SAFER, and SAFER shows the date of your last MCS-150.
Guessing the mileage and power-unit figures
The Safety Measurement System normalizes your Unsafe Driving and Crash Indicator BASICs by the power units and vehicle miles traveled on your MCS-150. Underreport your miles and every violation weighs more heavily against you. Overstate your units and you have made a false statement on a federal form, 390.19T attaches the same penalties to misleading information as to not filing. These are the two figures most often typed from memory, and the two that move your percentile.
Checking a classification you do not hold
Changing yourself to for-hire or interstate on the MCS-150 does not create operating authority, and it puts a record on file that says you are doing something you are not registered for. The same goes for hazmat. Fix the registration, not the checkbox.
Finding out the account is dead on the due date
FMCSA Portal accounts are disabled after 90 days of inactivity and archived after 12 months, and Motus is claimed by the company official's Login.gov email. If that official has left, or nobody can get into that email, you are on the phone with the FMCSA Contact Center during the month you needed to file, and the deadline does not wait for the ticket.
Paying a look-alike site to 'renew' your number
The update is free, and there is no such thing as a USDOT renewal fee. Mailers with official-looking seals and sites built to resemble FMCSA are selling a filing you can do yourself, and none of them are the government whatever the letterhead says. Choosing to hand the filing to someone is fine. That is what our standalone price buys, and we say plainly that the form itself costs nothing. Being tricked into it is a different thing. Motus is the only place the update actually happens.
Not checking that it took
A submission that errored out, or a record still showing last cycle's date, looks identical to a late filing to a broker running SAFER. The saved confirmation and the SAFER check a few days later are the difference between a fixed problem and a surprise in a load board conversation.
What an MCS-150 update costs
Filing the MCS-150 yourself in Motus
$0
Missing it
up to $15,846
Having us prepare it (standalone, not on a plan)
$199
TenFour, with every MCS-150 included
$99/mo
You can do this yourself. Here is when that is a good idea
If your Motus login works, nothing about the business has changed, and you have last year's mileage and your unit count in front of you, file it yourself: it is fifteen minutes and the form is free. The cases worth handing off are the ones above, a due date you are not sure of, a dormant or orphaned account, a change in what you do, or figures you would be guessing at. Those are where a free form turns into a deactivated number or a worse safety score.
On the membership, every MCS-150 is prepared for you: the routine biennial update tracked and prepared on schedule, and the off-cycle ones too, such as a number deactivated for a missed update, an overdue update, or a change of address, name or fleet size. We work the due date out from your number and get the figures right, you review it and submit it in your own Motus account, and we confirm it in SAFER and keep the confirmation in your document vault. It is the same free form. What you are paying for is not getting it wrong, and not waiting. Reapplying after a revoked new entrant registration is not part of this; that is the reinstatement add-on. Not on a plan? MCS-150 prepared for you is a one-time price, and if your number is already off, start with how to reactivate your DOT number.
See how the membership handles thisWhen this is not your situation: If your number was deactivated for something other than a missed biennial update, such as an unsatisfactory rating, an insurance lapse or an imminent hazard order, the MCS-150 alone will not restore it, and we will say so rather than sell you a filing. A revoked new entrant registration is different: under 385.329T(b) and (c) an updated MCS-150 is the reapplication filing, but it comes with a 30-day wait and either evidence the audit deficiencies were corrected or a new safety audit. That is our reinstatement add-on, not an included filing.
Related problems
- My USDOT number was deactivated
- How to get a BOC-3 filed and keep it valid
- My new authority is stuck pending in Motus
Questions people ask at this point
When is my MCS-150 biennial update due?
The last digit of your USDOT number is the month (1 is January through 9 is September; 0 is October). The next-to-last digit sets the year: odd files in odd years, even in even. It is due by the last day of that month, every 24 months. No notice is mailed, the free due-date calculator under Tools on this site works it out from your number.
Is the MCS-150 update really free?
Yes. FMCSA charges nothing, and there is no expedited channel. Anyone charging a fee is charging for the convenience of preparing it, which is exactly what our standalone price is, and we say so. On the membership the preparation is included, because we do it as part of tracking the date, and you submit it yourself in Motus.
Do I have to file if nothing has changed?
Yes. The biennial update under 49 CFR 390.19T is required every 24 months regardless of whether anything changed. You confirm the record rather than edit it, but it still has to be submitted.
Do I still have to file while FMCSA has paused deactivations?
Yes. The June 2026 notice temporarily suspends the inactivation of USDOT numbers for missed biennial updates while Motus stabilizes; it still asks registrants to complete them, gives no end date, and says nothing about civil penalties. File it.
What happens if I don't update my MCS-150?
The consequence stated in 390.19T is deactivation of the USDOT number, and civil penalties of up to $1,584 for each day the violation continues, capped at $15,846, may apply (49 CFR part 386, appendix B, adjusted for inflation; the $1,000-a-day and $10,000 figures FMCSA's website quotes are the statute's base amounts). Filing the update reactivates a number deactivated for this reason, check SAFER a few days later to confirm.
How do I know if my MCS-150 is updated?
Look yourself up in SAFER by USDOT number a day or two after you submit: the MCS-150 date on the Company Snapshot should show the new filing. If it still shows last cycle's date after a few days, the update did not take, and the Motus confirmation is what you take to FMCSA.
Does filing early change my next due date?
No. The schedule is fixed by the digits of your USDOT number, so the next update is due in the same month of the next qualifying year whether you filed on time, early or late.
Why do the mileage and power-unit figures matter so much?
The Safety Measurement System uses the power units and vehicle miles traveled from your MCS-150 to normalize the Unsafe Driving and Crash Indicator BASICs. Underreported miles make every violation count more heavily; overstated units are a false statement on the form. Use your ELD or IFTA totals.
My FMCSA Portal or Motus account is disabled. What now?
Portal accounts are disabled after 90 days of inactivity and archived after 12 months, and Motus is claimed with the company official's Login.gov email. Restoring access goes through the FMCSA Contact Center, so start well before your due month.
Can I switch from private to for-hire on the MCS-150?
Not by itself. The MCS-150 records what you do; it does not grant operating authority. Changing the classification without the corresponding registration puts a record on file that says you are operating in a way you are not registered for. Apply for the authority, then update the form.
Sources
- 49 CFR 390.19T: Motor carrier identification report (biennial update schedule and penalties)
- 49 CFR part 386, appendix B: Inflation-adjusted civil penalty maximums
- FMCSA: Updating your registration (free; deactivation and civil penalties)
- FMCSA: Temporary suspension of USDOT number inactivation (Motus)
- FMCSA: Registration home (Motus and Portal links)
- FMCSA: Steps to prepare for the new registration system (Portal accounts, Login.gov, 90-day disabling)
- FMCSA: SMS Methodology (power units and VMT from the MCS-150)
- FMCSA SAFER: Company Snapshot
Last reviewed September 26, 2026. TenFour is a compliance service, not a law firm, and is not affiliated with FMCSA or any government agency. Regulations and enforcement postures change, verify anything time-sensitive against the sources above before you act on it.
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