Trucking insurance X-dates: how they're estimated and how far to trust them

Where an X-date comes from

FMCSA records when an insurer files proof of a carrier's liability coverage (the BMC-91 or BMC-91X) and when that filing is cancelled. It doesn't record a policy term or an expiration date, because the filing runs until it's cancelled. So the standard estimate, used by every product we've looked at, is the anniversary of the current primary BI&PD filing's effective date.

That works because most commercial auto policies are annual. It fails when a policy started mid-term, was rewritten, or was cancelled before it ever reached a year.

How accurate the anniversary is

We took every primary BI&PD filing that ended between May 15 and November 4, 2026, 54,200 in all, and checked when each one ended against its anniversary.

• Replaced by a new filing (32,827): 60% ended before about 11 months. Of the rest, 65% ended within 7 days of the anniversary and 77% within a month.
• Cancelled (21,032): 59% ended before about 11 months. Of the rest, 58% ended within 7 days of the anniversary and 70% within a month.

The reading: once a carrier has kept a policy past its first year, the anniversary is a good guide, right within a week about 6 times in 10. Before that, it's close to a coin toss whether the policy even reaches its anniversary.

The Motus gap

Since FMCSA moved licensing and insurance to Motus in May 2026, its daily open data carries only about a third of active carriers. Tools that read only those files miss most renewals: on the November 4 run, about three in four of BMC Radar's renewal leads came from FMCSA's May 14, 2026 records, kept only where the daily census still shows the authority active.

The trade-off is that a carrier could have changed insurer since May 14 without it showing. On 1,132 comparable carriers that FMCSA does show today, 89.6% still had their May 14 insurer, so about 1 in 10 of these leads has moved. We label them as estimated from FMCSA's May 14 records.

Working an X-date list

1. Start 60 days out. That's enough time for loss runs and a few markets.
2. Rank by policy age and fleet size. Older filings and bigger fleets are the better bets.
3. Confirm the date on the first call. Ask when the policy renews; you'll know in one question if the estimate was right.
4. Watch for cancellations on the same carriers. A first-year policy that cancels early is your real opening.

Questions

What is an X-date in trucking insurance?

The date a carrier's current policy is expected to expire, so the date to have a quote ready by. FMCSA doesn't publish policy end dates, so every X-date for a trucking company is an estimate, usually the anniversary of the current BI&PD filing's effective date.

How accurate are estimated X-dates?

On 54,200 BI&PD filings that ended between May 15 and November 4, 2026: once a policy had run past about 11 months, 58 to 65% ended within 7 days of the anniversary and 70 to 77% within a month.

How far ahead should I start on an X-date?

About 60 days. That leaves time for loss runs, applications and quotes from several markets before the carrier's current policy renews.

Why don't first-year carriers renew on their X-date?

About 60% of the filings that ended in our sample ended before their first anniversary, mostly new carriers cancelled mid-term. For them, a cancellation alert is a better signal than the X-date.