The Deal-Killer Hiding in Your Pipeline

You've spent three weeks building rapport with a mid-size contractor. They're tired of their current carrier, frustrated with rate increases, and ready to shop. You've got two markets lined up. Then everything grinds to a halt.

The loss runs haven't arrived.

No carrier will quote without them. Your prospect's current insurer is dragging its feet. The renewal date creeps closer. And that account you were about to win? It slips through your fingers - not because of price, not because of coverage, but because of paperwork.

This scenario plays out in commercial lines agencies every single day. A loss run report is a claim history document covering three to five years of an insured's incidents, payments, and claim statuses. It sounds mundane. It's anything but. The loss run report is the single most powerful document for winning commercial accounts - the key that unlocks every carrier's appetite and the lens that reveals whether a prospect is gold or a ticking time bomb.

Here's what makes reading them a real skill: unlike standardized ACORD forms, there is no universal loss run template. Every carrier uses its own format, structure, and data presentation. The agent who can interpret any carrier's loss run and extract strategic insights holds all the in a competitive market.

This guide serves two audiences. If you're an insurance agent, you'll learn how to request, read, and use loss runs to win more commercial accounts. If you're a business owner, you'll understand your rights, how to get your loss history, and what it means for your premiums. By the end, you'll treat loss runs not as administrative busywork but as a competitive weapon.

What Is a Loss Run Report?

The definition every agent and business owner needs

A loss run report - also called a "loss history report" or "claims experience report" - is a detailed insurance loss history report generated by a carrier. It documents every claim filed against a policy over a defined period, typically three to five years. Think of it as the insured's permanent record in the insurance world.

Each report includes:

• Policy periods covered
• Premiums charged during each period
• Claims filed with descriptions
• Amounts paid on each claim
• Amounts held in reserve for open claims
• Claim statuses - open versus closed
• Loss ratios by policy year

Who owns the data?

Loss runs are legally the property of the insured, not the carrier. Policyholders have a statutory right to request them in every state. This matters because some carriers delay providing them - especially when they suspect the insured is shopping. Knowing your rights gives you the to push back.

Since state regulators oversee the business of insurance under the McCarran-Ferguson Act, loss run request rules vary by jurisdiction. Some states mandate delivery within 10 business days. Others allow up to 30. Page 4 of the ACORD 125 application captures three to five years of claims history sourced directly from loss run data, making these reports the foundation of every commercial submission.

Why Loss Runs Are the Most Important Document in Commercial Lines

The carrier's perspective: no loss runs, no quote

Every carrier underwriter will tell you the same thing. They can work without a completed application for a preliminary indication. They can overlook a missing schedule of vehicles temporarily. But they will not quote a commercial account without loss runs. Period.

The reason is straightforward. Loss runs reveal patterns that applications cannot. An application tells an underwriter what coverage a prospect wants. Loss runs tell them what that prospect actually costs to insure. In a market where the P&C industry's combined ratio fell to 96.6% in 2024 - a 5.1-point improvement from 2023 - carriers are fiercely protecting their profitability gains.

The agent's perspective: intelligence for account strategy

For agents, loss runs are an intelligence briefing. They reveal whether a prospect's current carrier has been raising rates due to claims frequency, whether open reserves suggest future premium hikes, and whether the account is truly desirable or a risk no market will touch. Qualifying leads effectively starts with understanding the data behind each prospect.

According to Aon's Q4 2025 market overview, pricing cycles are now specific to product, industry, and geography rather than moving as a monolith. This means loss run analysis must account for line-specific trends. A clean auto loss run might get aggressive pricing, while a messy general liability history on the same account could trigger declinations.

What's on a Loss Run: A Field-by-Field Breakdown

Core data fields

Every loss run - regardless of carrier format - contains the same essential data points. Learning to spot them quickly across different layouts is what separates top producers from average ones.

Open versus closed claims

This distinction drives underwriting decisions more than most agents realize. A closed claim means the carrier has paid out and moved on. An open claim means reserves are still being held - and those reserves inflate the account's loss ratio. Open claims might close for less than reserved, creating an opportunity for you to tell a more favorable story to new markets.

When you see open reserves on a loss run, dig deeper. Call the claims adjuster. Get a status update. A $50,000 reserve that's about to settle for $15,000 changes the entire narrative for your submission. Understanding supplemental application details helps you frame this context for underwriters.

Loss ratios: the number carriers care about most

The loss ratio is calculated by dividing total incurred losses (paid claims plus reserves) by total earned premium. A 40% loss ratio on a commercial property account is attractive. An 85% loss ratio signals trouble. Data from APCIA shows that auto insurance loss ratios reached 78.4% in Q2 2022 - the second-highest level in over 20 years - putting pressure on carriers to scrutinize every account's individual loss experience.

How to Request Loss Runs

Step-by-step process for agents

Getting loss runs shouldn't feel like pulling teeth, but it often does. Here's the proven process:

1. Get a signed letter of authority from the insured. Most carriers require written authorization before releasing loss runs to a new agent. Use your agency's standard broker of record letter or a simple authorization form
2. Submit the request in writing. Call the carrier's underwriting or customer service department to confirm the correct fax number, email address, or portal for loss run requests. Always follow up a phone request with written documentation
3. Specify the time period. Request five years of loss history. Some carriers default to three years - push for five to give underwriters the full picture
4. Include policy numbers. If you have them, include every policy number for every line. This prevents the carrier from sending only one line's loss runs when you need all of them
5. Set a deadline. Reference your state's statutory response requirement. This creates urgency and a paper trail

Timing matters: the 60-90 day rule

Start your loss run request at least 60 to 90 days before the renewal date. This gives you time for the inevitable back-and-forth, allows carriers to process the request, and leaves enough runway to market the account to multiple carriers. Agencies that automate renewal tracking gain a significant advantage here because they never miss the optimal request window.

For business owners: your rights and process

If you're a business owner, you don't need an agent to request your loss runs. Contact your carrier's customer service line directly and request your claims experience report in writing. You are legally entitled to this document. If the carrier stalls, escalate to your state's Department of Insurance.

Keep copies of every loss run you receive. Store them digitally. When you shop for coverage, providing loss runs proactively tells prospective agents that you're organized, serious, and easy to work with. It also speeds up the quoting process dramatically, which means you get better options faster.

When carriers delay: escalation tactics

Some carriers intentionally delay loss run requests because they know the clock is ticking on renewal. Here's how to fight back:

• Send a second written request referencing the original date and your state's statutory deadline
• CC the insured on all correspondence so the carrier knows you're keeping them informed
• File a complaint with the state Department of Insurance if the deadline passes - this almost always triggers immediate action
• Use the carrier's agent portal if one exists - digital requests often get processed faster than fax or email

Agencies investing in AI-powered administrative tools can track these requests automatically and trigger follow-up reminders without relying on CSR memory.

How to Read Loss Runs Like a Pro

Calculating the loss ratio yourself

Never trust a summary loss ratio provided by the incumbent carrier. Calculate it yourself. Divide total incurred losses (paid plus reserves) by total earned premium for each policy year. Then calculate the overall five-year loss ratio.

Why do this manually? Because you need to separate frequency from severity - and a summary number hides both.

Frequency versus severity: the pattern that matters

Underwriters fear frequency more than severity. A single large claim - say a $500,000 fire loss on a property account - is concerning but understandable. Five $20,000 claims per year, every year? That signals a systemic operational problem the insured isn't fixing.

Research from industry analysts confirms that multiple small claims each year can result in premium increases of 10-25%, even if individual amounts are low, because frequency signals operational risk. When you see this pattern on a prospect's loss run, you have two choices: walk away or build a risk improvement plan that addresses root causes before marketing the account.

Spotting red flags underwriters will catch

Before you submit to any carrier, review the loss run through an underwriter's eyes. They will flag these issues immediately:

Understanding how carriers evaluate submissions helps you qualify leads effectively before investing hours in the marketing process. Not every prospect is worth your time - and loss runs tell you which ones are.

Finding opportunities in open reserves

Open reserves represent the carrier's estimate of what an open claim will ultimately cost. These estimates are often conservative. If you can get updated status information from the claims department, you may discover that an open $100,000 reserve is expected to close for $30,000.

This is a powerful story for underwriters. Contact the current carrier's claims department, request a status update on every open claim, and include that context in your submission narrative. Underwriters appreciate this level of preparation because it saves them significant analysis time.

Using Loss Runs to Win Accounts

Identifying accounts ripe for remarketing

Loss runs don't just help you quote business. They help you target it. When you review a prospect's loss runs and see a pattern of annual premium increases despite a stable or improving loss ratio, you've found an account that's being surcharged without justification. That's your opening.

Show the prospect their own numbers. Most business owners have never seen their loss runs laid out in a clear format. When you can say, "Your loss ratio has been 35% for three years, but your premium has increased 18% - let me show you why," you become the trusted advisor, not just another agent trying to win their business.

Building a remarketing strategy from data

Follow this approach for every commercial prospect:

1. Analyze the five-year loss trend. Is it improving, stable, or deteriorating?
2. Calculate loss ratios by line. Some lines may be profitable while others are bleeding money. Market the profitable lines aggressively and address the problematic ones with risk management
3. Identify coverage gaps. Loss runs sometimes reveal claims on coverages the insured no longer carries - or should carry. This creates a cross-sell opportunity using account rounding strategies
4. Prepare a narrative for underwriters. Don't just send loss runs to carriers with a submission. Write a cover letter explaining claim circumstances, corrective actions taken, and why the account deserves competitive pricing

The competitive intelligence angle

Loss runs reveal what the incumbent carrier has been charging. If you see steadily increasing premiums alongside a clean loss history, you know the incumbent is either increasing rates across the board or has decided the account isn't a priority. Either way, a hungry carrier with appetite for that class of business will offer better terms.

Aon reports that soft market conditions and heightened competition continued across most geographies and lines in Q4 2025, giving insurance buyers opportunities to secure better pricing. Loss runs arm you with the data to capitalize on that soft market.

How Carriers Use Loss Runs in Underwriting

What underwriters look for first

Underwriters follow a consistent evaluation process when reviewing loss runs. They start with the overall five-year loss ratio, then drill into frequency versus severity, then examine open reserves, and finally look at claim types relative to the class of business.

A restaurant with three slip-and-fall claims raises different concerns than a restaurant with one foodborne illness claim. Context matters. The underwriter wants to know: is this an insured who maintains their property, or one who ignores hazards? Claim descriptions on loss runs tell that story.

How loss run data affects pricing

Carriers use loss runs to adjust their pricing in several ways:

• Experience rating credits or debits. Accounts with favorable loss history receive credits that reduce premium; poor histories trigger debits
• Schedule rating adjustments. Underwriters apply manual credits or debits based on loss patterns that the standard rating algorithm doesn't capture
• Deductible recommendations. High-frequency, low-severity claim patterns often lead carriers to recommend higher deductibles, which reduces premium but shifts more risk to the insured
• Declination. Some loss histories are simply uninsurable in the standard market, pushing the account to surplus lines or the assigned risk pool

Understanding these dynamics helps agents position their submissions effectively. Pairing loss run analysis with complete property applications and strong narratives consistently produces better results from underwriters.

Loss Runs and the Experience Modification Rate

The direct connection

For workers' compensation, loss runs feed directly into the Experience Modification Rate (EMR or e-mod). The EMR compares an employer's actual loss experience to the expected losses for their industry classification. An EMR above 1.0 means the employer has worse-than-average losses. Below 1.0 means better than average.

The data that drives this calculation comes straight from loss runs. Paid losses, reserves, and claim counts all factor into the formula administered by NCCI or the relevant state rating bureau. When you analyze a prospect's loss runs and their EMR simultaneously, you can identify discrepancies - like a closed claim still showing as open in the rating bureau's data - that represent immediate savings opportunities.

Why this matters for winning accounts

If you can show a prospect that their EMR is being calculated using outdated or incorrect loss run data, and you can get it corrected, you've just saved them real money on their workers' comp premium. That's not a pitch - that's a tangible result. Agents who understand this connection convert prospects at a significantly higher rate because they deliver value before they even write the policy.

Processing these details efficiently matters for your customer service strategy as well. When clients call to ask about their EMR or claim status, having instant access to loss run data makes your agency responsive and trustworthy.

Digital Loss Run Platforms and Automation

The manual burden: why agencies struggle

Here's the reality of loss run processing in most agencies. A CSR receives a PDF - sometimes a fax - from a carrier. They manually review each page, enter claim data into the agency management system, cross-reference it against the submission, and compile a summary for the producer. According to industry research, processing a single multi-coverage submission can take 90 to 120 minutes of pure data entry. Multiply that across 50 renewal accounts per month, and you've consumed an entire FTE on data entry alone.

How technology is changing the process

Modern agencies are adopting several technologies to reduce the loss run processing burden:

• OCR-powered extraction tools that read loss run PDFs and extract structured data automatically
• API integrations with carrier systems that pull loss run data directly into agency management platforms
• AI-assisted analysis that flags red flags, calculates loss ratios, and generates submission narratives from raw loss run data
• Automated tracking systems that monitor loss run request status and trigger follow-ups when deadlines approach

The growing of AI tools for insurance agencies includes solutions specifically designed for loss run processing. Agencies that adopt these tools redirect staff time from data entry to relationship building and account strategy.

Capturing renewal triggers automatically

One overlooked advantage of technology adoption involves the front door of your agency: the phone. When clients call to discuss renewals, report claims, or ask about policy changes, those conversations contain critical timing information. At Sonant AI, we've seen agencies miss loss run request windows simply because a client mentioned their renewal date during a routine call, and nobody captured it.

An AI receptionist can capture these renewal timeline details from every client interaction and trigger automated workflows - including loss run requests - at precisely the right moment. Agencies using AI call assistants report fewer missed renewal windows and faster quoting cycles because the data capture happens in real time, not days later when someone reviews call notes.

This dovetails with broader industry shifts. Swiss Re reports that insured losses have exceeded $100 billion for five consecutive years, which means underwriters are scrutinizing loss runs more carefully than ever. Agencies that provide clean, well-organized loss run data with contextual narratives will consistently earn better quotes from carriers.

Frequently Asked Questions About Loss Run Reports

How long does it take to get a loss run report?

Most states require carriers to provide loss runs within 10 to 30 business days of a written request. Actual turnaround varies by carrier. Some provide them within 48 hours through their agent portals. Others push the statutory deadline to its limit. Start your request early and follow up in writing if you don't receive them within two weeks.

Can a business owner request loss runs directly?

Yes. Loss runs belong to the insured, not the carrier or the agent. Any policyholder can request their own loss history by contacting the carrier in writing. You don't need an agent to do this, though your agent can often obtain them faster through established carrier relationships.

How many years of loss runs do carriers require?

Most carriers require three to five years. Five years is the gold standard for commercial lines. If the insured has been with the same carrier for less than five years, you'll need loss runs from every carrier that provided coverage during that window - which means making multiple requests.

What if the insured has no prior insurance?

New businesses or businesses purchasing coverage for the first time won't have loss runs to provide. In this case, most carriers will accept a signed statement from the insured confirming no prior insurance and no prior claims. Some carriers will also request a certificate of insurance from prior policies if any existed.

Do loss runs affect my premium?

Directly - yes. Your claims history, as documented on loss runs, is one of the primary factors carriers use to determine your premium. A clean loss history earns credits. A poor one triggers surcharges or declinations. This is why understanding lead quality starts with loss run analysis.

How do loss runs differ from a CLUE report?

Loss runs come from the insuring carrier and cover a specific policy. CLUE (Comprehensive Loss Underwriting Exchange) reports come from LexisNexis and aggregate claim data across multiple carriers. Both are useful, but loss runs provide more detailed claim-level information including reserves and descriptions. Carriers use both in their underwriting evaluation process.

Can I dispute errors on a loss run?

Absolutely. If you find incorrect claim data - wrong amounts, misattributed claims, or claims that should be closed but show as open - contact the carrier's claims department in writing. Request a corrected loss run and confirm the correction has been reported to ISO/NCCI. Errors on loss runs can inflate premiums for years if nobody catches them.

Turning Loss Run Knowledge into Agency Growth

Loss run reports sit at the intersection of every commercial lines transaction. They determine whether carriers will quote. They reveal whether an account is profitable. They expose coverage gaps that create cross-sell opportunities. And they give the agent who can interpret them a decisive advantage over competitors who treat them as just another PDF to forward.

The agencies winning in today's market combine deep loss run analysis skills with operational efficiency. They request loss runs proactively using automated scheduling systems that track every renewal 90 days out. They process the data using AI-powered tools that extract key metrics in seconds instead of hours. And they capture renewal timing information from every client interaction - whether through 24/7 AI support systems or intelligent phone answering that never lets a critical detail slip through the cracks.

Start treating every loss run as an intelligence report, not an administrative task. Calculate the ratios. Spot the trends. Build the narrative. The agents who do this consistently don't just quote more business - they win it.