Your MCS-150 biennial update is due in a month set by the last two digits of your own USDOT number. The last digit gives the month — 1 is January through 9 for September, and 0 is October. The digit before it gives the year — odd means odd-numbered years, even means even-numbered years. You have the whole month, and FMCSA will take it up to 90 days early.
Look at the last digit of your USDOT number.
| Last digit | Month it is due |
|---|---|
| 1 | January |
| 2 | February |
| 3 | March |
| 4 | April |
| 5 | May |
| 6 | June |
| 7 | July |
| 8 | August |
| 9 | September |
| 0 | October |
Look at the digit before that one. If it is odd — 1, 3, 5, 7 or 9 — you file in odd-numbered years. If it is even — 0, 2, 4, 6 or 8 — you file in even-numbered years.
USDOT 1234567 — ends 6 then 7.
The 7 means July. The 6 is even, so even years.
Due July 2026, then July 2028, then July 2030.
USDOT 2223339 — ends 3 then 9.
The 9 means September. The 3 is odd, so odd years.
Due September 2027, then September 2029.
USDOT 44110 — ends 1 then 0.
The 0 means October. The 1 is odd, so odd years.
Due October 2027, then October 2029.
The penalty is up to $1,000 for every day it is late, to a maximum of $10,000. Then FMCSA deactivates the number.
Failure to complete biennial updates to FMCSA will subject the entities to civil penalties of up to $1,000 per day with a maximum penalty of $10,000. FMCSA may also deactivate the USDOT Number for any entity that fails to comply with the updating requirements. — FMCSA registration guidance
As of September 2026 FMCSA has temporarily paused deactivating numbers for missed biennial updates, because its new Motus system has been locking carriers out. It has said it will give notice before starting again. The pause does not remove the requirement, and it has no published end date.
FMCSA charges nothing for the biennial update. You are allowed to file it, and plenty of people do. It is worth knowing what that involves before you decide.
Since 14 May 2026 it goes through Motus, which replaced the old Portal. First time through, with the account setup and the identity check, it can take several hours — and that is if nothing goes wrong.
None of that is a reason you cannot do it. It is the reason most owner-operators would rather not.
Put in your USDOT number. We read your official FMCSA record and show you your exact date, plus everything else you owe. Free, and you do not need an account.
If you want us to file it, that is $109 and you get your money back if it is rejected.We work out what your trucking company owes the government, and we file it.
We are a private company. We are not part of FMCSA, the IRS, the
U.S. Department of Transportation, or any state agency. Every
filing described on this site can be made by you, directly, for
the government's own fee.