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A commercial truck program can contain several deductibles or retained amounts, and a single event can touch more than one coverage part. The declarations, forms, and endorsements—not a market rule—control whether a deductible applies per occurrence, per vehicle, per coverage, or in another way.
A deductible is an amount the insured retains on a covered loss, but the mechanics vary. Physical damage, cargo, reefer, theft, trailer interchange, and liability can each use different wording. One event may trigger multiple deductibles unless a combined- or single-deductible provision applies.
Build a one-page schedule that lists every coverage, deductible or retention, valuation method, limit, and relevant endorsement. Then compare it with loan, lease, customer, and trailer-interchange agreements.
Many owner-operator and small-fleet liability policies have no insured-retained amount, but liability deductibles and self-insured retentions also exist. Read the reimbursement and collateral terms carefully.
FMCSA requires applicable motor carriers to maintain minimum financial responsibility, which can be satisfied through insurance, a surety bond, or authorized self-insurance. The MCS-90 is a policy endorsement, not the insurance filing used for operating authority. When applicable, insurers use BMC-91 or BMC-91X filings. FMCSA's current filing chart explains the distinction.
The MCS-90 protects qualifying judgment creditors from certain policy defenses; it does not promise that the motor carrier has no deductible, retention, or reimbursement obligation.
Collision, comprehensive, and specified-perils coverage can use different deductibles. A tractor and trailer may also be treated as separate scheduled units. Do not assume a rollover produces one deductible or two—check the occurrence language and any combined-deductible endorsement.
A lender or lessor may contractually require physical-damage coverage and may restrict the deductible. Check the finance or lease agreement before changing it.
The net total-loss payment depends on the valuation clause, applicable limit, deductible, lienholder rights, and other terms. A stated amount may cap payment; it is not necessarily a guaranteed value. The declarations must be read with the valuation provision.
Cargo, refrigeration breakdown, theft, debris removal, trailer interchange, and non-owned-trailer provisions vary widely. A commodity or reefer endorsement may impose a separate deductible, sublimit, maintenance condition, temperature-record requirement, or security condition.
Contracts may specify a maximum acceptable deductible. There is no universal amount that every broker or shipper accepts. Compare each agreement with the declarations and endorsements before taking the load.
Compare the quoted premium change with the extra retained amount, but treat that as a starting point. The calculation should also account for available cash, downtime, taxes, claim frequency, lender requirements, multiple deductibles in one event, and the possibility that a deductible becomes due before revenue resumes.
Ask these questions:
Paying a small loss without seeking reimbursement may reduce claims submitted, but notice and cooperation duties still apply. Do not assume a potentially covered incident can be withheld from the insurer. Late notice can impair investigation and may create a coverage issue.
Do I always pay a physical-damage deductible when another driver is at fault?
If the insured uses its own coverage, the insurer may apply the deductible and then pursue subrogation. Whether and when the deductible is recovered depends on the facts, law, and recovery.
Can I change a deductible midterm?
Only if the insurer agrees to an endorsement and any lender or contract restriction is satisfied. Obtain written confirmation before relying on the change.
Does a higher deductible guarantee a better renewal?
No. It may change current premium and the amount retained, but renewal pricing depends on the insurer's filed rating plan, loss history, operation, drivers, equipment, limits, and other underwriting factors.
Put every deductible and retention on one page, then compare it with the operation's worst plausible cash-flow combination. Truscott can review the structure alongside the full commercial truck insurance program. Use the commercial trucking application for a licensed-agent review.
Sources checked August 17, 2026. Policy language and contract requirements control; verify every deductible, retention, and valuation provision in the actual documents.
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