Marketing Agency Commercial Auto: Pricing Methodology
Exactly how Commercial Auto is calculated for Marketing Agencies — the rating basis, class codes, audit mechanics, experience modifiers, schedule rating, and the renewal-cycle math that determines what you actually pay.
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Commercial Auto premium for Marketing Agencies is calculated per vehicle, using ISO loss costs as the framework. Carriers apply their own loss-cost multiplier, your experience modifier (3-year loss history), and schedule rating (underwriter judgment) to produce the final premium. The audit at policy expiration trues up estimated vs actual exposure.
The unit of exposure behind Marketing Agencies Commercial Auto pricing
For Marketing Agencies, Commercial Auto premium is calculated per vehicle. That is the unit of exposure carriers use to scale premium against the size of the operation. ISO maintains the rating framework most carriers start with, and each insurer layers on its own loss-cost multiplier.
Why the unit matters: a marketing agency with twice the exposure unit will pay roughly twice the base premium, all else equal. If you understand the rating basis, you can predict how operational changes (revenue growth, headcount additions, fleet expansion) will move premium at renewal.
How are ISO class codes assigned to Marketing Agencies?
ISO classification is the first underwriting decision on a Marketing Agencies Commercial Auto submission. The class code drives the base rate and signals which carriers will compete for the account. Different carriers see different classes as in-appetite, so the class choice cascades into the entire placement.
If a marketing agency has been with the same carrier for years, the class code on the binder may not have been reviewed during that time. Underwriting habits drift, and a class re-review at renewal often surfaces a cleaner classification that produces a meaningful rate credit.
What happens at policy audit for Marketing Agencies on Commercial Auto?
At policy expiration, the carrier audits the marketing agency's actual exposure for the past year. The rating basis used at audit is the same one used at issuance — per vehicle — applied to the documented actuals.
For Marketing Agencies, audit accuracy matters because errors compound. An over-estimate at binding overpays for a year; the audit returns it. An under-estimate underpays for a year; the audit owes it. Either way, the policy ends at the correct net cost; the question is just cash-flow timing.
Marketing Agencies experience-mod mechanics
The experience modifier compares a marketing agency's actual three-year paid losses to the expected losses for the class. A modifier of 1.00 is neutral; below 1.00 is a credit (better than class average); above 1.00 is a debit (worse than class average).
The mod multiplies through the base rate, so its impact is direct. A mod of 0.90 produces a 10% premium reduction; a mod of 1.20 produces a 20% premium increase. For Marketing Agencies, the mod is one of the largest single inputs to the final premium.
How do state rate filings affect Marketing Agencies Commercial Auto?
State rate filings are the regulatory infrastructure behind Marketing Agencies Commercial Auto pricing. Each state's insurance department reviews and approves (or rejects) the rates carriers file for use in the state. The approval process and resulting rate changes affect every policy in the class.
States with heavy industry activity in professional services firm tend to have richer carrier competition and tighter rate oversight. States with low activity may see slower competitive pressure and more carriers exiting the market in hard cycles.
What changes at renewal for Marketing Agencies on Commercial Auto
The renewal-time recalc on Marketing Agencies Commercial Auto captures everything that has changed in the year between policies. New rate filings, your new exposure, your new loss experience, and any operational changes you disclosed all feed into the new premium.
If the renewal number surprises you, ask the broker for the line-by-line breakdown: base rate change, exposure change, experience-mod change, schedule-rating change. Each line is auditable. An unexplained renewal jump usually points to one of those factors moving meaningfully.
Hidden methodology errors on Marketing Agencies Commercial Auto
The most common reasons Marketing Agencies overpay on Commercial Auto are methodology errors, not bad rates. Top three by frequency: wrong class code (15-30% overpricing), wrong exposure declaration (auditable, but only at year-end), and missed schedule-rating credits the underwriter could have applied if asked.
None of these require operational changes to fix — just attention to the methodology paper trail. A 30-minute audit of the current binder against last year's typically surfaces at least one correctable error.
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Chris DeCarolis
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Chris DeCarolis is a Senior Commercial Insurance Advisor at Coverage Axis. His experience in commercial risk placement started in 2007. He has helped contractors, trades, and specialty businesses build coverage programs that fit their operations — specializing in general liability, workers comp, commercial auto, and umbrella programs for high-risk industries. Chris holds a Florida 220 General Lines license (G038859) and is a graduate of Brown University.
COMMON QUESTIONS
Frequently Asked Questions
At policy expiration. The auditor reviews actual exposure (per vehicle) against the estimate used at binding. If actual exceeded estimate, you owe additional premium; if lower, you get a return premium.
Each carrier has its own loss-cost multiplier, schedule-rating philosophy, and target loss ratio for professional services firm. Spreads of 15-30% between cheapest and most expensive are normal.
Yes. Rate filings approved in your state apply to all policies in the class. A 5% state-approved base-rate increase shows up as 5% on your renewal regardless of your individual experience.
Four inputs refresh: rates (state filings), exposure (your actuals), experience modifier (rolling 3-year loss window), and schedule rating (underwriter judgment). Any of those moving moves the renewal.
Yes, but slowly. Operational changes affect the experience modifier and schedule rating over multiple renewal cycles. The fastest move is usually correcting methodology errors, not changing operations.
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