MCS-150 update due date lookup
Enter your USDOT number to see when your next MCS-150 biennial update is due, the last update date in FMCSA's census data, and whether a deadline looks missed. Filing is free in Motus.
How your due date is set
Every carrier with a USDOT number files an update every 24 months, by the last day of a month set by its USDOT number (49 CFR 390.19T(b)). The last digit picks the month. The next-to-last digit picks odd or even years.
| Last digit of USDOT number | Filing month | Due by |
|---|---|---|
| 1 | January | Last day of January |
| 2 | February | Last day of February |
| 3 | March | Last day of March |
| 4 | April | Last day of April |
| 5 | May | Last day of May |
| 6 | June | Last day of June |
| 7 | July | Last day of July |
| 8 | August | Last day of August |
| 9 | September | Last day of September |
| 0 | October | Last day of October |
| Next-to-last digit | Filing years |
|---|---|
| 1, 3, 5, 7, 9 | Odd years (2025, 2027, 2029) |
| 0, 2, 4, 6, 8 | Even years (2026, 2028, 2030) |
Example: USDOT 1234567 ends in 7, so the month is July. The next-to-last digit is 6, which is even, so the update is due by July 31 of even years: 2026, 2028, 2030.
What the lookup tells you
- Next update due: worked out from your number. This is exact.
- Last update on file: the MCS-150 date in FMCSA's public census data, with the date that data was published.
- Standing: whether the census data shows an update in the 24 months before your last deadline. If it doesn't, the deadline may have been missed, or a recent filing may not have reached the data yet.
FMCSA has temporarily suspended enforcement of biennial updates, and the inactivation of USDOT numbers for missing them, while carriers move to Motus. Carriers whose update was due on or after June 1, 2026 get extra time. The update is still required. (FMCSA notice, last updated September 10, 2026; checked September 30, 2026.)
Filing is free
You don't need to pay anyone to file the biennial update. Log in to Motus with Login.gov, claim your USDOT number and submit the update. The step-by-step guide walks through it. If a letter or email asks you to pay to file, read how to spot biennial update scams.
Guides
- MCS-150 due dates by USDOT number
The full schedule: which month and which years, with worked examples.
- How to update your MCS-150 online in Motus
Log in, claim your USDOT number and submit the biennial update. Free.
- The MCS-150 form: which version and what it asks
MCS-150, MCS-150B or MCS-150C, and the details to have ready.
- The DOT biennial update explained
Who has to file, how often, and what happens if you don't.
- Missed your MCS-150 update?
What happens to your USDOT number and how to get current.
- Biennial update scams: how to spot them
Letters and emails that charge for a free filing, and how to check.
Questions
Does it cost anything to file the MCS-150?
No. FMCSA does not charge for the biennial update. You file it yourself in Motus, FMCSA's registration system. Companies that charge are selling a filing service, not a government fee.
How is the due date worked out?
From your USDOT number alone, using the schedule in 49 CFR 390.19T(b): the last digit sets the month and the next-to-last digit sets whether you file in odd or even years.
Why does the last update date look old?
The date comes from FMCSA's public census data, which is refreshed daily but can take time to show a new filing. If you filed recently, check your record in Motus Public Search.
Do intrastate carriers have to file?
The federal rule covers interstate carriers and intrastate carriers that need a hazardous materials safety permit. Many states also require intrastate carriers to hold a USDOT number and keep it updated, so check your state's rules.