The Silent Revenue Leak from Quoting One Carrier
Every small commercial agency I talk to has the same workflow under the hood. A new commercial prospect calls in. The agent picks a carrier they trust, enters the info into the portal, gets a quote, and presents it. If the number is decent, that is the quote the client sees. If the number is bad, sometimes they try a second carrier. Usually they do not.
Ask the owner what happens next and you get a version of this answer:
"We kind of just pick one and go with it unless the price is bad. We are not able to be as effective in getting as many looks. I do not know if we are losing business or not. We probably are."
That is verbatim from an owner of a five-agent independent agency in April 2026, and it is one of the most honest things a commercial agent has ever said to me. The "we probably are" is doing a lot of work. It is an admission without a number behind it. This post is about what the number actually is.
Why the Habit Exists
Before the math, the why. Single-carrier quoting is a rational response to time economics, not laziness.
A typical commercial submission takes 20 to 30 minutes per carrier portal. Log in, enter the NAICS or class code, fill in the ACORD data, answer the underwriting questions, wait for the quote. Write it down. Do it again in the next portal. At five carriers per submission that is two and a half hours — a full morning for one quote, assuming nothing gets declined at the last screen.
For an agent doing 20 to 40 commercial submissions a month, quoting the full panel on every risk is not physically possible. So agents triage. They pick the carrier most likely to win based on the risk type, quote that one, and hope it lands. If it does not, they try a second. Sometimes a third. The full panel never gets touched.
This does not look like a problem inside the agency. The deals that close, close. The quotes that come back at bad prices get re-shopped. What stays invisible is the third bucket: risks where the single quote came back "okay," the client accepted it, and the same business got a better quote at the agency down the street that happened to try carrier number four.
Those clients do not come back to tell you. They do not fill out an exit survey. You never learn about them.
Why Comparative Raters Don't Fix This
You cannot solve the problem with a comparative rater, because the raters do not cover most of your carriers.
There are roughly 2,700 P&C carriers in the United States per NAIC reporting data. Across every commercial comparative rater on the market (Tarmika, Semsee, Bold Penguin, combined and de-duped), only about 50 to 60 unique carriers are reachable, and only 8 to 10 offer full BOP plus GL plus WC APIs. About 97 percent of carriers are portal-only. Full breakdown here.
If your panel looks anything like the typical small commercial shop (Liberty, Travelers, Auto-Owners, Progressive, Hartford, plus one or two regionals), you probably have two of those on Tarmika, and the rest are manual portal work. Single-carrier quoting is what happens when you cannot automate multi-carrier quoting. The raters do not solve it for most panels.
The Math
The lost-business math has four inputs your agency already knows and one assumption you have to make.
Inputs you know:
- Submissions per month
- Average annual premium per policy in your commercial book
- Your commission rate
- Your win rate on current single-carrier quoting
The assumption: how much your win rate would go up if you quoted the full panel instead of one carrier.
There is no industry-wide number for this. Agents who have switched from one-carrier to multi-carrier quoting anecdotally report 30 to 50 percent improvements in close rate on commercial risks. That is wide, so use a conservative 30 percent for planning. A 40 percent win rate today would become 52 percent if you were quoting everyone.
Example on conservative numbers:
- 20 commercial submissions a month is 240 a year.
- At 40 percent current win rate, you close 96.
- At an $8,000 average annual premium and 12 percent commission, that is about $92,000 in annual commission from commercial new business.
- At 52 percent projected win rate, you would close 125.
- Same premium and commission, that is $120,000.
- Difference: roughly $28,000 a year of commission, across 29 additional clients.
Those 29 clients do not feel like much when you spread them across 12 months (two or three a month). But they are real, and they compound. Two years in you are retaining most of them. At typical small-commercial retention rates, that $28,000 compounds every year going forward. Over five years you are closer to $400,000 than to $140,000.
Try It on Your Own Numbers
Instead of arguing with my example, plug in yours.
A note on precision: the number is an estimate. The uplift factor is the softest input. If your book is mostly renewal-driven with sticky clients, the uplift is lower. If you are in a competitive market with a lot of shopping, it is higher. Use the calculator as a directional exercise, not a budgeted forecast. For a dedicated landing page with email capture, see /tools/lost-business-calculator.
What to Do About It
Two honest paths.
Path one: keep the habit, fix the triage. If you are going to quote one carrier per submission, get better at picking the right one. That means carrier appetite intelligence (knowing which of your carriers actively wants a given class code in a given state before you start filling out the portal). Our free appetite checker covers 425 carriers and is a fair tool for this whether you ever touch QuoteSweep beyond that.
Path two: make multi-carrier quoting fast enough to stop being a tradeoff. The only reason agents triage is because quoting N carriers takes N times the work. If you can quote your full panel in the time it takes to quote one, the triage problem disappears. Full disclosure on why I am writing this post: that is what QuoteSweep does. AI web agents fill out every portal on your panel in parallel, using your credentials, and return the quotes side by side. You can see what it looks like for independent agencies or try the appetite checker as a low-commitment starting point.
The owner I quoted at the top already suspected what was happening. He just did not have the number. On the next call we ran the math together, and it was bigger than either of us expected — big enough that the pilot conversation reframed from "save time" to "recover revenue." That reframing is the whole point.
If you are doing the same mental gymnastics ("we probably are losing some"), plug the numbers in and see what falls out.
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