The Broker's Guide to Underwriting Submission Checklist

Every broker needs a working underwriting submission checklist. Incomplete submissions add 5-8 business days to quoting cycles and reduce hit ratios by 20 percentage points, per IIABA 2025 data. That delay is not underwriting analysis time. It is wait time while underwriters request missing data, brokers gather it, and the submission re-enters the queue. Applied Systems 2025 data shows complete submissions quote in 7-10 days while incomplete submissions take 14-18. The checklist below gives you a field-tested, line-by-line reference for every major commercial coverage, with notes on what happens when each item is missing.

Key Takeaways

• Incomplete submissions account for 55% of underwriting delays and reduce hit ratios by 20 percentage points, per IIABA 2025
• The universal checklist (applicable to all commercial lines) has 12 core items: missing any one adds 3-8 days to turnaround
• Loss runs must be currently valued (within 90 days): stale loss runs with outdated reserves mislead underwriters and frequently trigger requests for fresh runs
• Workers' comp submissions require actual payroll by class code from payroll records, not estimated figures: inaccurate class code payroll allocation causes audit surprises averaging 12-18% of premium, per NCCI 2025
• Pre-submission validation by a reviewer other than the producing agent catches 70% of deficiencies before they reach the underwriter
• Agencies that implement formal checklists reduce average submission-to-quote time from 16 days to 9 days, per Vertafore 2025 Agency Growth Study

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Section 1: Universal Requirements (All Commercial Submissions)

These 12 items apply to every commercial lines submission regardless of coverage type. A submission missing any one of them is incomplete.

1. ACORD 125 (Commercial Insurance Application). Current, signed, and dated within the last 12 months. Every field completed. Named insured exactly as it appears on legal documents. FEIN verified. All business locations listed with physical street addresses, not P.O. boxes. SIC and NAICS codes filled in.

2. Legal entity verification. Named insured matches Secretary of State records. DBAs, subsidiaries, and affiliated entities listed. Joint ventures and additional named insureds identified. Incorrect named insured formatting is the number one cause of coverage disputes at claim time.

3. Five years of currently valued loss runs. Loss runs from every carrier that provided coverage during the five-year window. "Currently valued" means loss data reflects the most recent reserve adjustments, not a stale report. Request updated loss runs 30 days before each submission cycle. Include all lines of business, not just the line being submitted.

4. Loss summary table. One page showing: policy year, carrier, premium, claim count, incurred losses, loss ratio, and largest single claim. Five-year aggregate loss ratio at the bottom. This saves underwriters 15-20 minutes of manual calculation.

5. Submission narrative. 300-500 words for standard risks; 500-800 for complex accounts or adverse-history risks. Covers: operations detail, risk quality evidence, loss context, financial position, and the coverage request.

6. Financial statements. Three years for accounts above $25,000 in premium. Two years acceptable for smaller accounts. Tax returns are not a substitute. Audited preferred; compiled or reviewed statements acceptable. Internally prepared statements work for accounts under $50,000 but carry less weight.

7. Prior coverage summary. Expiring carrier name, policy number, premium by line, effective and expiration dates, and any claims-made retroactive dates. Gaps in prior coverage require explanation.

8. Revenue and payroll data. Current policy period figures and two prior years. Payroll separated by class code for workers' comp. Revenue by GL class code when the insured has multiple operations.

9. Requested coverage outline. Lines of business, limits, deductibles, and required endorsements (additional insured forms, waiver of subrogation, primary/non-contributory status). Specify the form numbers if known.

10. Target pricing. Expiring premium by line and the client's budget expectations. This helps underwriters calibrate quotes to competitive reality and reduces unnecessary follow-up pricing discussions.

11. Renewal or effective date. The binding deadline and any contractual or financing closing dates that require coverage confirmation by a specific date.

12. Broker contact. Direct phone and email for both the producer and the account manager or CSR handling follow-up. Underwriters who cannot reach the broker after requesting information move the submission to the bottom of the queue.

Checklist Item Impact Table

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Section 2: Commercial General Liability Specific

Beyond the universal 12 items, GL submissions require these additional elements.

ACORD 126 (GL Section). Completed with the correct exposure basis: revenue for most classes, payroll for labor contractors, square footage for property-based exposures. Operations described in specific detail, not SIC code language.

Products description. If the insured manufactures, distributes, or sells a physical product, describe it specifically. Product type, materials, customer base, and annual sales volume. Products exposure affects GL rate significantly and is frequently underreported.

Subcontractor information. Total annual subcontractor costs. Percentage of subcontractors providing certificates of insurance with the required limits. Whether written subcontract agreements include hold-harmless and additional insured provisions. Carriers deny certificates to additional insureds when the underlying subcontractor agreement lacks these provisions.

Completed operations history. For contractors: a five-year history of completed projects by type (new construction, renovation, tenant improvement), average project size, and any completed operations claims. Completed operations is a separate exposure from ongoing operations and requires its own narrative.

Professional services exposure. Any service that could give rise to an errors and omissions claim requires separate professional liability coverage. Design-build contractors, engineering firms, IT consultants, and similar businesses carry professional exposure that standard GL does not cover.

Additional insured schedule. List every entity requiring additional insured status on the policy. Include the specific endorsement form required (CG 20 10, CG 20 37, CG 20 26, or blanket). Blanket additional insured endorsements require a written contract; include a sample contract.

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Section 3: Workers' Compensation Specific

ACORD 130 (Workers' Compensation Application). Completed with all states of operation, class codes per NCCI scope (or state rating bureau for non-NCCI states), and payroll by class code.

Actual payroll by class code from payroll records. Not estimated. Not rounded to the nearest hundred thousand. Actual payroll figures from payroll records for each NCCI classification code. Inaccurate class code payroll allocation causes audit adjustments averaging 12-18% of premium, per NCCI 2025. Underwriters who receive accurate payroll trust the submission. Underwriters who find estimated figures add a pad to their quote.

Prior EMR worksheets. Current year and prior two years. If the EMR is above 1.00, include an explanation of the specific claims driving the mod and documentation of the corrective actions taken. Carriers use the EMR trend, not just the current figure, to assess workers' comp risk quality.

Safety program documentation. Written safety policy signed by management. Training records showing completion dates and attendance. OSHA 300 and 300A logs for the past three years. Safety committee meeting minutes if the insured has a safety committee.

Return-to-work program. A written program describing how injured employees transition through modified duty back to full duty. Carriers provide schedule rating credits for formal return-to-work programs. The credit ranges from 5-15% depending on the carrier.

Employee count by class. Number of full-time, part-time, and seasonal employees in each classification. This cross-checks against payroll figures and catches misclassification.

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Section 4: Commercial Property Specific

ACORD 140 (Property Section). Completed with building values, contents values, business income values, and any equipment breakdown coverage needs. Building values are the single most frequently understated figure in commercial property submissions.

Building construction details. Year built. Construction type (frame, joisted masonry, non-combustible, masonry non-combustible, fire resistive, modified fire resistive). Number of stories. Total square footage. Roof type (flat, sloped, membrane, metal). Roof age and last replacement date.

Renovation history. Most recent renovation dates for electrical system, plumbing, HVAC, and roof. Buildings with updated systems qualify for lower rates than buildings with original infrastructure. Unrenovated buildings over 40 years old require disclosure regardless of whether the underwriter asks.

Protection details. Fire alarm type: local alarm, central station monitored alarm, or no alarm. Sprinkler system: wet pipe, dry pipe, partial, or full coverage. Distance to the nearest fire station and fire hydrant. Protection class (1-10 scale used by carriers to assign base rates).

Current appraisal or replacement cost valuation. For buildings over $2 million in insurable value, a current appraisal (within three years) is required by most carriers. Appraisals prevent coinsurance penalties and verify the insured recovers full replacement cost after a total loss.

Flood zone determination. The FEMA flood zone for each location. Prior flood claims, even if covered under separate flood policies. Whether separate flood coverage is requested or whether the insured relies on NFIP.

Business income worksheet. Annual revenue, monthly revenue by peak and off-peak periods, payroll figures for continuing expenses, and estimated restoration period. Business income is the coverage most frequently undervalued at inception and most disputed at claim time.

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Section 5: Commercial Auto Specific

ACORD 137 (Vehicle Schedule). Complete with year, make, model, VIN, gross vehicle weight, garage address, and usage type (service, delivery, long-haul) for every vehicle. Each vehicle listed separately. Vehicles not listed on the schedule at inception may require mid-term endorsement.

Driver list with current MVRs. Motor vehicle reports for every driver who operates covered vehicles. MVRs must be dated within 12 months. Drivers with violations or accidents require individual notation: the violation type, date, and disposition. Carriers handle violation surcharges differently; some carriers decline drivers with two major violations within three years.

Radius of operations. Local (under 50 miles from the garage location), intermediate (50-200 miles), or long-haul (over 200 miles). Radius affects the rate tier significantly. Accurate radius reporting prevents mid-term endorsement and audit disputes.

Cargo information for trucking accounts. Type of cargo hauled (general freight, refrigerated goods, hazardous materials, livestock). Average load value and maximum load value. Hazmat endorsement is required if any load meets DOT hazmat thresholds.

DOT and MC numbers. If the insured is subject to FMCSA regulation (interstate commerce in motor vehicles with GVW over 10,001 pounds), include the DOT number and MC number. The current FMCSA safety rating (satisfactory, conditional, unsatisfactory) must be disclosed.

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Section 6: Umbrella/Excess Specific

Schedule of underlying policies. Every policy that the umbrella sits above. Carrier, policy number, coverage line, effective dates, and per-occurrence and aggregate limits. The umbrella's attachment point must match the underlying limits exactly.

Confirmation that underlying limits meet umbrella requirements. Most umbrella carriers require specific minimum underlying limits: GL of $1 million/$2 million, auto of $1 million, and employers' liability of $500,000/$500,000/$500,000. If the underlying limits do not meet these minimums, the umbrella carrier will either decline or require a retained limit that covers the gap.

Professional liability in the underlying schedule. Umbrella coverage does not automatically follow professional liability claims unless the carrier specifically confirms it. If the insured has professional liability exposure, the umbrella submission must address whether professional liability is included in the underlying schedule and whether the umbrella follows.

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Pre-Submission Validation Steps

Run this five-point validation before every submission leaves the agency.

Step 1: Completeness scan. Review against the universal checklist and the applicable line-specific checklist. Confirm every item is present. Flag missing items for follow-up with the client before sending.

Step 2: Data consistency check. Named insured spelling matches across all documents (ACORD forms, loss runs, financial statements, and the narrative). Revenue and payroll figures in the narrative match the ACORD form figures. Dates are consistent: effective date, loss run valuation date, and financial statement dates all align with the submission date.

Step 3: Classification code verification. Verify that the NCCI class codes on the ACORD 130 match the operations described in the narrative. A single misclassified code can shift premium by 30-50%, per NCCI 2025. Verify GL class codes against the ISO rating manual for the carrier's territory.

Step 4: Loss run currency. Confirm loss runs are valued within the last 90 days. Loss runs valued more than 90 days ago contain stale reserves. If the underwriter spots an open claim valued at an outdated reserve, they will request current runs, adding 5-8 days.

Step 5: Carrier appetite confirmation. Before finalizing the submission package, verify that the carrier writes this class code in this territory at this premium size. Check the carrier's current appetite guide or call the marketing rep. This five-minute step eliminates 20-25% of misdirected submissions.

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FAQ

What documents are always required in a commercial underwriting submission?

Every commercial submission requires the ACORD 125 (Commercial Insurance Application), five years of currently valued loss runs from all prior carriers, a submission narrative, and prior carrier information including policy numbers and premiums. Accounts above $25,000 in premium also require two to three years of financial statements. Line-specific ACORD supplements (126 for GL, 130 for WC, 140 for property, 137 for auto) are required for each applicable line. Per IIABA 2025, missing any of these elements adds 5-8 days to the quoting cycle.

How current do loss runs need to be for an underwriting submission?

Loss runs must be currently valued within 90 days of the submission date. Loss runs valued more than 90 days ago contain reserve figures that may have changed significantly, especially for open claims. If you are working on an October renewal, request updated loss runs in late July. Stale loss runs are the second most common cause of supplemental information requests after incomplete ACORD forms, per Applied Systems 2025.

What supplemental applications do carriers require beyond the ACORD 125?

Beyond the ACORD 125, carriers typically require: ACORD 126 for GL, ACORD 130 for workers' comp, ACORD 140 for property, and ACORD 137 for commercial auto. Many carriers also require their own proprietary supplemental questionnaires for specific classes: Hartford uses class-specific supplements for contractors, restaurants, and technology companies; Travelers requires their own WC supplement for construction; CNA uses industry-specific supplements for manufacturing and healthcare. For professional liability, most carriers no longer accept the ACORD 855 and require their own applications.

What payroll data do underwriters need for workers' comp submissions?

Underwriters need actual payroll by NCCI classification code for each state of operation. Not total payroll, not estimated payroll, and not rounded figures. The payroll figures should come directly from payroll records and match the figures that a premium audit would verify. Clerical payroll (class code 8810) must be separated from operations payroll, since clerical employees are rated at a much lower rate. Inaccurate payroll allocation is the primary cause of premium audit adjustments averaging 12-18% of WC premium, per NCCI 2025.

How do you handle a submission when loss runs are not available?

When loss runs are not available because the prior carrier is unresponsive or the insured cannot locate the prior carrier, document the effort to obtain them in the submission cover letter. Include whatever loss information is available: claims registers from the insured's records, CLUE reports, or self-reported loss summaries. Most carriers will proceed with a submission noting the outstanding loss run request, but they will add a condition to the quote requiring loss runs before binding. Submit whatever you have with a clear explanation of the gap. Do not submit without mentioning the missing loss runs.

What happens when an underwriting submission is missing required information?

One of three things occurs: the underwriter issues a supplemental information request (adds 5-10 business days), declines to quote and marks the file inactive (requires a full resubmission), or quotes with a restrictive condition requiring the missing information before binding. Supplemental requests are the most common outcome for minor gaps. Declination occurs for major gaps (no loss runs, no financial statements on large accounts, incomplete ACORD forms). The worst outcome is a declination that the broker discovers only after following up, having assumed the submission was in progress.

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BrokerageAudit's Submission Intake validates your submission package against a carrier-specific checklist before it goes out, flagging missing items automatically. See how it works →

Written by Javier Sanz, Founder of BrokerageAudit. Last updated April 2026.