What Your E&O Underwriter
Actually Asks For at Renewal
The E&O renewal application is not a formality. It is a structured risk assessment — one that asks specific questions about project mix, client relationships, contract practices, and revenue history that most A/E firms have never organized their data to answer efficiently. Here is the complete picture of what underwriters need, why they need it, and what it means for how your project data should be organized.
The Renewal Application Is a Risk Assessment, Not a Form
Most A/E principals experience E&O renewal as an annual administrative inconvenience — something the office manager handles, a check that gets written, a certificate that gets filed. The application itself is given varying degrees of attention depending on how much time is available and how much the renewal amount has changed from the prior year.
That approach works until it doesn't. A principal who has never read the full renewal application carefully is often surprised by how specific it is — and how much the quality of the answers depends on having project data organized in a way that most firms simply don't.
The E&O underwriter is not completing a formality. They are assessing the risk profile of an architecture or engineering firm — the probability that a claim will be made, the likely severity of that claim, and whether the premium the firm is paying is appropriate for the exposure. The application is the instrument of that assessment.
A complete, accurate, well-organized renewal application gives the underwriter the information they need to assess the firm's risk accurately. It also gives the firm's broker the information they need to shop the risk competitively — presenting the firm's profile to multiple carriers in a format that produces real quotes rather than declines or requests for additional information.
An incomplete, estimated, or poorly organized application produces either an inaccurate premium — one that may be higher than warranted because the underwriter padded for uncertainty — or a delayed renewal while the underwriter requests the missing information.
The application asks for approximately seven categories of information. Each one exists for a reason. Understanding what the underwriter is looking for in each category clarifies what organized project data actually needs to contain.
→ Read: E&O Insurance Renewal for A/E Firms: The Complete Guide
The E&O renewal application is a risk assessment instrument.
A complete, accurate, well-organized application gives the underwriter the information they need to price the risk correctly — and gives the broker the information they need to shop it competitively.
An estimated, incomplete application produces either an inaccurate premium or a delayed renewal.
The Seven Things E&O Underwriters Ask For
1. Revenue summarized by project type category — with gross, subconsultant costs, and net separated
This is the centerpiece of the E&O renewal application and the hardest piece for most A/E firms to produce accurately.
The underwriter needs the firm's revenue from the reporting period, organized by project type — Commercial, Healthcare, Residential, Educational, Industrial, Government, Infrastructure, and so on, in whatever categories the carrier uses. For each category, three figures are required: gross billings (total invoiced to clients), subconsultant costs (amounts paid to subconsultants whose fees were included in those billings), and net professional fees (gross billings minus subconsultant costs).
The premium is calculated on net professional fees — the firm's own professional services, with subconsultant pass-throughs removed. A firm that reports gross billings without separating subconsultant costs is overstating its net professional fee base and may be paying a higher premium than its actual exposure warrants.
Three years of data are typically required — the current reporting period and the two prior periods. This gives the underwriter a trend view of the firm's project mix and revenue, not just a snapshot of the current year.
2. Five largest clients by revenue
The underwriter wants to know who the firm's largest clients are — by name, project type, and revenue for the reporting period. This information reveals client concentration risk.
A firm doing 50% of its revenue with a single client has a materially different risk profile than one with revenue distributed across 30 clients. When a large client relationship produces a claim — which is more likely simply because of the volume and value of work involved — the concentration of revenue with that client makes the potential severity of the claim higher relative to the firm's total premium base.
Underwriters also look at the nature of the large client relationships. A long-standing institutional client with whom the firm has worked for fifteen years and never had a dispute is different from a new developer relationship that represents a large revenue share in year one.
3. Client type breakdown
Beyond the five largest clients, the underwriter wants to understand the overall mix of client types the firm serves — private owner, government agency, developer, contractor, public institution, residential, and so on.
Different client types carry different claim tendencies. Government agency work tends toward slower disputes and formal resolution processes. Developer work can involve aggressive claims related to cost overruns and schedule delays. Residential work carries specific exposures around defects and homeowner disputes that are different in character from commercial work. The client type mix gives the underwriter a more nuanced picture of the firm's exposure than project type alone.
4. Contract type breakdown
The underwriter wants to know what contract instruments the firm uses — AIA standard agreements, the firm's own contract, client-provided contracts, letter agreements, or verbal agreements.
Contract type is a proxy for how well the firm's professional liability exposure is managed at the contractual level. Firms working under AIA standard agreements with appropriate limitation of liability provisions, clear scope definitions, and professional standard of care language have managed their contractual risk profile appropriately. Firms working primarily under client-provided contracts — particularly developer-drafted agreements with unfavorable indemnification provisions — have accepted contractual terms that may expand their liability exposure beyond what professional practice requires.
A firm that negotiates its contracts carefully, uses AIA documents with appropriate modifications, and avoids letter agreements for significant engagements is presenting a favorable risk profile. A firm that works under whatever contract the client provides is presenting a different one.
5. Project type risk profile
Beyond the revenue category summary, underwriters often ask about the nature of the work within higher-risk categories. Healthcare and residential work in particular may prompt follow-up questions — what types of healthcare facilities the firm designs, what percentage of residential work is single-family versus multi-family, and whether any work involves occupied renovation under live conditions.
These questions are not boilerplate. They reflect the underwriter's understanding that within any category, some project subtypes carry significantly higher claim exposure than others. An architecture firm that designs medical offices has a different healthcare risk profile than one that designs acute care hospitals. A residential practice doing custom single-family homes has a different exposure than one doing large multi-family developments.
6. Claims history
The application asks for five years of claims history — any professional liability claims made against the firm, how they were handled, and the amounts involved.
Claims history is the backward-looking risk indicator that underwriters weigh most heavily. A firm with no claims history over five years of significant practice is presenting strong evidence that its professional practices, quality control processes, and client relationships are working well. A firm with multiple claims — even if they were all resolved favorably — is presenting a pattern that requires explanation.
When claims exist, context matters. A claim on a single complex project with an unusually difficult client relationship reads differently from multiple claims across different project types and clients. The broker should help frame the claims history narrative before the application goes to the underwriter.
7. Firm information and professional credentials
Basic firm information — principals' professional licenses and years of experience, firm size and staffing, states in which the firm is licensed to practice, types of services offered — rounds out the application. This information establishes the firm's professional standing and the scope of its practice, which affects both the premium calculation and the coverage terms.
The premium is calculated on net professional fees — gross billings minus subconsultant costs.
A firm that reports gross billings without separating subconsultant costs may be overstating its net professional fee base and paying a higher premium than its actual exposure warrants.
The separation matters, and most firms don't make it accurately.
Why the Revenue Category Summary Is the Hardest Piece to Produce
Of the seven application components, the revenue summary by project type category is the one that takes the most time, produces the most uncertainty, and is most likely to be estimated rather than calculated from clean records.
The reconstruction problem has four components.
The category list varies by carrier
There is no industry-standard project type classification list for E&O insurance. Every underwriter maintains its own. A firm renewing with the same carrier for ten years may have learned its carrier's categories well enough to categorize projects quickly at renewal. A firm that is shopping for coverage or switching carriers faces the additional challenge of mapping its project portfolio to a new category structure — often while the application deadline is approaching.
Projects aren't tagged at intake
The fundamental problem is that most A/E firms do not assign a project type category when a project is opened. The information needed for renewal categorization — what kind of project it is, in which underwriter category it belongs — is available at the time the project is set up. It is almost never recorded in the project management system at that moment. At renewal time, the office manager is looking at a project list and making categorization decisions based on project names, client names, and memory.
Multi-year projects require period-level billing data
Renewal requires period-level revenue data — what was billed during the specific reporting period — not contracted fees. A project that spans three years needs to be represented in each year's renewal application by the billings for that year, not by the total contracted fee. Producing accurate period-level billing data by category requires pulling billing records by project and by period — a more involved reconstruction than simply listing contracted fees.
Subconsultant costs require a separate reconciliation
Producing gross billings is one exercise. Separating out the subconsultant costs embedded in those billings is another. For firms that do not track subconsultant costs against specific projects in their project management system, the subconsultant cost reconciliation requires cross-referencing billing records with accounts payable records — finding the consultants whose fees were included in client invoices during the period, summing their costs by project, and allocating those costs to the appropriate category.
For firms that track subconsultant costs in BaseBuilders as part of their normal project management and billing process, this reconciliation is not a separate exercise. The subconsultant costs have been attributed to projects and are separated from the firm's professional fees. The renewal report draws on existing data to automatically produce the gross, subs, and net figures for each category.
→ Read: Gross Billings, Subconsultant Costs, and Net Fees: How E&O Underwriters Calculate Your Premium Base
The revenue category summary requires period-level billing data, subconsultant cost separation, and project categorization against the underwriter's specific list — none of which is available from a project management system that wasn't organized for this purpose.
The reconstruction takes days. The right setup makes it a report run.
Going to Market With Clean Data
The E&O renewal application is not just a compliance document for the incumbent carrier. It is the data package that enables competitive shopping across the A/E professional liability market.
A broker specializing in A/E professional liability maintains relationships with most of the approximately 60 active carriers in the market. When a firm's renewal data is organized, complete, and accurate — revenue by category with gross, subs, and net separated, three years of data, client type breakdown, contract type breakdown, five largest clients, and claims history — the broker can submit that package to multiple carriers simultaneously and return with competitive quotes.
When the data is incomplete or estimated, the broker's ability to shop is constrained. Underwriters who receive applications with estimated category splits, missing subconsultant separation, or incomplete prior-year data will either decline to quote, request additional information that delays the process, or price in a margin for uncertainty, thereby inflating the premium.
The firms that pay competitive E&O premiums year over year are not exclusively the ones with the cleanest claims histories — though that matters. They are the ones that go to market regularly, with data well organized so brokers can actually shop it.
The same report that satisfies the incumbent carrier goes to every competing broker
When the E&O renewal report runs in minutes from BaseBuilders — date range selected, report summarized by category, gross, subs, and net dollars produced for each category automatically — the firm has what it needs for renewal and for shopping simultaneously. The same export goes to the incumbent carrier and to two or three competing brokers. The firm receives competitive quotes and makes an informed decision rather than accepting the renewal on autopilot.
The one-time setup cost — creating the Select field, loading the category list, tagging projects at intake — is recovered the first time the organized data enables a competitive premium discussion that the firm could not have had before. After that, the setup pays for itself every renewal cycle.
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