Does the account fit?
The underwriter compares the applicant’s operations, property, drivers, loss history, controls, and geography with the carrier’s appetite and authority.
Risk selection and terms
Underwriting decides whether a risk fits—and what coverage, conditions, and price fit the risk
Underwriting is the process of evaluating, selecting, classifying, and pricing risk. The insurer decides whether to insure an applicant and, if so, on what form, limits, deductibles, endorsements, conditions, and premium.
On what terms?
The insurer may restrict, exclude, schedule, warrant, inspect, require improvements, increase deductibles, reduce limits, or use another coverage form.
At what rate?
The risk is placed into filed classes, territories, tiers, or rating plans and adjusted using permitted characteristics and actuarial support.
Underwriting and coverage analysis are different jobs
A carrier’s willingness to offer a policy does not establish that the policy meets the client’s needs. Review coverage, exclusions, conditions, limits, deductibles, and contracts separately from market acceptance.
From application to decision
A complete submission moves through five connected decisions
Gather information. Obtain a signed or otherwise authorized application, schedules, statements of values, loss runs, financial and operational details, inspections, contracts, driver data, and any carrier supplements.
Identify exposures and hazards. Separate what can create loss from the conditions that increase frequency or severity, then identify existing controls and missing safeguards.
Check appetite and guidelines. Confirm eligible class, territory, construction, operations, loss profile, values, limits, catastrophe concentration, and any referral or inspection rules.
Classify and rate. Assign class codes, territories, symbols, protection classes, tiers, exposure bases, modifiers, discounts, surcharges, and catastrophe factors supported by the filed or approved plan.
Accept, decline, or modify. The carrier may quote as submitted, offer changed terms, require conditions, postpone pending information, or decline.
The process is iterative. A roof inspection, corrected motor vehicle record, updated payroll allocation, revised contract, or new loss run can send the account back to an earlier step and change eligibility or price.
Personal auto data sources
Auto underwriting combines what the applicant reports with third-party records and driving data
| Data source | What it can show | What to verify |
|---|---|---|
| CLUE auto claims report | Prior auto claims associated with the consumer or risk, commonly reaching back about seven years. The research source reported use by roughly 99% of auto insurers; treat that market-share figure as a secondary-source estimate. | Identity match, date, driver, vehicle, fault treatment, claim status, amount, duplicates, and any disputed or incorrect entry. |
| Motor vehicle record | Licensing status, violations, suspensions, accidents or other state-record items, subject to jurisdiction and reporting rules. | Correct driver and license, reporting date, disposition, and whether the carrier’s lookback and point treatment match its guidelines. |
| Credit-based insurance score | A loss-prediction score derived from credit information for permitted personal insurance underwriting or rating. | Required disclosure, source, adverse-action notice, report accuracy, current-score rights, and Texas statutory limits. |
| Vehicle and garaging data | VIN characteristics, safety and theft features, repair cost, ownership, registration, garaging location, annual mileage, commute, use, and household access. | Exact VIN, titled and registered owner, regular operators, household members, delivery or rideshare use, modifications, and garaging address. |
| Telematics | Mileage and observed driving behavior from an app, device, connected car, or other sensor source. | Enrollment and consent, which drivers and vehicles are measured, program period, possible surcharge, privacy terms, data errors, and portability. |
A report is an input, not the final decision. When a record appears wrong, help the client identify the report provider, dispute path, supporting documents, and carrier correction or re-underwriting process. Do not promise the rating result.
Homeowners data sources
Property underwriting measures both the building and the catastrophe around it
Home underwriters commonly use CLUE property-claim history, physical or aerial inspections, replacement-cost estimators, roof age and condition, public records, fire-protection class, distance to hydrant and fire station, and distance to coast, brush, or other catastrophe exposure.
What is being insured?
Construction, square footage, occupancy, year built, roof material and age, electrical, plumbing, heating, foundation, renovations, outbuildings, pools, solar, detached structures, and replacement cost.
How is loss prevented or controlled?
Fire protection, alarms, sprinklers, shutoff devices, defensible space, maintenance, vacancy, unrepaired damage, housekeeping, and inspection findings.
Where can one event affect many policies?
Coast, wind, hail, freeze, wildfire or brush, flood, sinkhole, crime, distance to emergency response, and the insurer’s accumulated concentration nearby.
What happened—and was it corrected?
Cause, frequency, severity, repairs, mitigation, open claims, prior insurance, and whether a prior loss signals an unresolved condition or merely a one-time event.
Aerial imagery and automated property data can be useful but can also be stale, obscured, or mismatched. Confirm material findings with the client and the carrier rather than treating an image score as conclusive.
Commercial account data
Commercial underwriting must connect the legal entity, operations, locations, contracts, and loss history
Commercial underwriters commonly review currently valued loss runs, financial statements, driver motor vehicle records, premises or risk-control inspections, industry and policy class codes, payroll and sales, ownership structure, subcontractors, products, contracts, business continuity, and—when workers’ compensation experience rating applies—the experience modifier.
| Input | Underwriting question | Common submission problem |
|---|---|---|
| Loss runs | What has happened, what remains open, and what corrective action followed? | Missing years, stale valuation dates, unnamed entities, open reserves without narrative, or no explanation of large or repeated losses. |
| Financials | Can the firm maintain operations, controls, deductibles, and contractual obligations? | Numbers do not reconcile with application sales, payroll, values, or ownership. |
| MVRs and fleet schedules | Who drives what, where, how far, and under which controls? | Inactive drivers, unlisted vehicles, personal use, radius errors, missing VINs, or no driver-selection program. |
| Inspection and risk control | Do actual conditions match the application, and are controls functioning? | Uncorrected recommendations, new operations, poor housekeeping, protection impairments, or inaccessible locations. |
| Class codes and exposure bases | Are all operations assigned to the correct rating categories? | Overly broad descriptions, clerical versus operational payroll errors, unreported subcontractors, or revenue assigned to the wrong operation. |
| Experience modifier | How does actual workers’ compensation loss experience compare with expected experience? | Wrong entity, ownership or combinability issue, audit errors, incorrect payroll, claim-status error, or mod applied to the wrong effective period. |
Texas Insurance Code Chapter 559
Texas permits credit-based insurance scoring for specified personal lines, but the rules are more precise than “credit cannot be the sole basis”
Texas law allows an authorized property and casualty insurer to use credit scoring—excluding unfairly discriminatory factors—to develop rates, rating classifications, or underwriting criteria for personal auto, residential property, residential fire and allied lines, and certain noncommercial recreational policies. Chapter 559 does not apply to farm mutual insurers or eligible surplus lines insurers.
What an insurer may not do
- Deny, cancel, or nonrenew a personal insurance policy solely because of credit information without considering another applicable underwriting factor independent of credit.
- Use a score built with factors that constitute unfair discrimination.
- Adversely affect a consumer merely because the consumer lacks a credit-card account without considering another applicable independent factor.
- Treat missing or unavailable credit information negatively unless the insurer satisfies one of the statutory alternatives.
Verification correction
The spreadsheet said an insurer may not “charge more solely because of credit.” Chapter 559 expressly contemplates rate differences due solely to differences in credit scores and directs TDI to prescribe allowable differences. The sole-basis prohibition in Section 559.052 applies specifically to denial, cancellation, and nonrenewal. Credit-based rating is permitted when the insurer follows the governing law, rules, disclosures, filed model, and rate plan.
Disclosure, adverse effect, and current-score rights
At application, the insurer or agent must disclose that a credit report may be used. If credit information produces an adverse effect, the insurer must provide the notice and specific primary-factor information required by Section 559.054; a generic statement such as “poor credit score” is not enough.
Effective September 1, 2025, Senate Bill 1644 added Section 559.058. Subject to statutory exceptions, an insurer that uses credit scoring must use a sufficiently current report for adverse action at issue or renewal, update the insured’s credit report at least every 36 months, and reassess rating. On renewal, the insured or agent may request re-underwriting and re-rating using a current report no more than once in a 12-month period.
Texas also requires reasonable exceptions, on written request and documentation, when credit information was directly influenced by specified extraordinary events such as catastrophic illness or injury, death of close family, temporary unemployment, divorce, or identity theft.
Usage-based insurance
Telematics turns observed mileage and driving behavior into underwriting and rating inputs
Telematics programs may measure miles driven, time of day, hard braking, rapid acceleration, speed patterns, cornering, phone distraction, trip type, location, and other variables. Insurers use the data to refine loss prediction, offer participation or behavior-based discounts, and—depending on the filed program—apply a surcharge or other rating consequence.
Pricing can reflect actual use
A low-mileage or consistently safer driver may receive a better result than a traditional class plan based largely on proxies and self-reported estimates.
Program details matter
Data ownership, consent, household drivers, device or app accuracy, phone handling, trip classification, surcharge potential, withdrawal, retention, and claim use differ by program.
Do not promise a discount. Confirm whether participation is optional, what data are collected, whether the initial discount can decrease, whether adverse driving can increase premium, and how the carrier treats missing or corrupted data.
Rate × exposure × adjustments
Insurers group similar risks, estimate expected cost, and then differentiate within the class
A rating plan generally begins with actuarial loss and expense data, groups risks into classifications, establishes a base rate or loss cost, and applies rating factors for characteristics shown or reasonably expected to affect loss and expense. Individual premium may then reflect exposure units, territory, limits, deductibles, modifiers, schedule rating, experience, fees, minimum premium, and taxes or assessments.
Conceptual calculation
Base rate × exposure units × territory factor × limit or deductible factor × account modifiers + flat charges = indicated policy premium. The actual sequence and permissible factors come from the carrier’s filed or approved rating plan.
Texas statutory rate standard
Insurance Code Chapter 2251 requires applicable rates to be adequate, not excessive, unreasonable, or unfairly discriminatory. The law directs insurers to consider credible loss, exposure, premium, expense, catastrophe, investment-income, and profit information. It also permits classification and individual-risk rating plans based on relevant factors.
- Adequate means sufficient to sustain projected losses and expenses without endangering solvency or materially harming competition.
- Not excessive means the rate is not likely to produce an unreasonably high long-term profit relative to coverage.
- Not unfairly discriminatory means the rate rests on sound actuarial principles, reasonably relates to expected loss and expense differences, and is not based wholly or partly on the protected characteristics listed in the statute.
Capital and catastrophe capacity
Reinsurance changes how much risk an insurer retains—and how much business it can responsibly write
Reinsurance transfers part of an insurer’s risk to another insurer. It does not replace the client’s policy or make the reinsurer directly responsible to the policyholder under ordinary arrangements; it protects the issuing insurer’s balance sheet and capacity.
| Structure | How it works | Why it matters |
|---|---|---|
| Treaty reinsurance | Covers a defined portfolio or category of policies under an ongoing agreement. | Supports routine capacity across a book and can protect against frequency, severity, or catastrophe accumulation. |
| Facultative reinsurance | Is separately negotiated for one risk or a specific portion of it. | Can support an unusually large, hazardous, or high-value account that exceeds normal treaty capacity. |
| Proportional | Insurer and reinsurer share premium and losses by an agreed percentage. | Spreads both attritional and severe results and can expand writing capacity. |
| Excess of loss | The reinsurer responds above the insurer’s retention, up to the reinsurance limit. | Protects against individual severity or aggregate catastrophe loss. |
In catastrophe-exposed Texas property lines, reinsurance cost, availability, attachment points, limits, reinstatements, modeled loss, and insurer concentration can influence appetite, geographic capacity, deductibles, exclusions, and pricing. A technically acceptable property may still be declined because the carrier has reached an aggregation limit in that area.
Texas Insurance Code Chapter 2251
Texas generally uses file-and-use for covered admitted P&C rates, with ongoing review and important exceptions
For risks governed by Chapter 2251, an insurer files rates, manuals, supplementary rating information, and required support with the Texas Department of Insurance. Section 2251.101 generally permits the insurer to use a filed rate on and after the filing date.
Files support and may begin use
The filing must show how the rate and rating plan comply with statutory standards. Some large commercial risks and other categories are outside particular filing requirements.
Reviews and can disapprove
The commissioner must disapprove a noncompliant filing within the applicable review period and may request additional information. A rate already in effect can also be challenged and ordered out of use.
Can review and object
The Office of Public Insurance Counsel may request access to filings and file a written objection within the statutory period. An aggrieved insured or public counsel may also seek a hearing on a filing in effect.
“File-and-use” does not mean “unregulated” or “automatically approved.” Chapter 2251 contains rate standards, support requirements, disapproval authority, public-information provisions, hearings, and prior-approval provisions for certain circumstances. Other statutes and rules govern lines or mechanisms outside Chapter 2251, including workers’ compensation, title, TWIA, FAIR Plan, surplus lines, and exempt or specially regulated risks.
Legislative status correction
Senate Bill 1643 proposed a 10% prior-approval threshold in 2025, but it did not become law
The spreadsheet described SB 1643 as a 2025 reform requiring prior approval when an insurer changed a filed rate by 10% or more, up or down. That was the proposal’s central concept, but the bill did not complete the legislative process.
April 23, 2025The Texas Senate passed SB 1643.
May 20, 2025The House Insurance Committee left the bill pending—the last action recorded.
Current rule
Do not tell clients or insurers that Texas enacted SB 1643’s across-the-board 10% prior-approval threshold. As of July 14, 2026, the official bill history shows the proposal died in the House committee. Chapter 2251’s existing file-and-use framework and its specific prior-approval circumstances remain the controlling general structure.
A separate existing provision can create a 10% filing trigger for a narrow category of small residential-property insurers otherwise exempt under Section 2251.252. That specialized rule is not the broad SB 1643 proposal and should not be generalized to all P&C rate changes.
Texas-specific workers’ compensation rating
Texas publishes its own workers’ compensation classification loss costs rather than using NCCI loss costs
TDI publishes Texas classifications, expected loss rates, experience-rating information, and classification loss costs. An insurer files a loss-cost multiplier that reflects expenses, profit, and other company considerations. The classification loss cost multiplied by that insurer’s multiplier produces its rate per $100 of payroll before account-level adjustments.
TDI’s July 1, 2026 illustration
A roofing classification loss cost of 1.946 multiplied by an insurer loss-cost multiplier of 1.50 produces a rate of $2.919 per $100 of payroll before experience modification and other adjustments.
The experience modifier compares actual with expected loss
When an employer is eligible for experience rating, the experience modifier adjusts premium upward or downward based on how the account’s actual historical losses compare with expected losses for businesses of similar size and classification, using the applicable experience-rating formula and experience period.
Final premium can also reflect payroll audit, correct classification, ownership and combinability, schedule rating, premium discount, deductibles, terrorism, assessments, minimum premium, and carrier underwriting. A lower statewide loss cost does not guarantee a lower price for every employer.
Profitability, capital, and appetite
The combined ratio helps explain underwriting results and the hard–soft market cycle
The combined ratio generally compares incurred losses and loss-adjustment expenses plus underwriting expenses with earned premium. A ratio below 100% indicates an underwriting profit; above 100% indicates an underwriting loss before investment income. Definitions and reporting presentations can vary, so use the source’s methodology when comparing companies or periods.
| Market condition | Typical carrier behavior | What a client may experience |
|---|---|---|
| Hardening market | Losses, reinsurance cost, inflation, catastrophe, poor returns, reserve development, or constrained capital lead carriers to tighten appetite and seek more rate. | Higher premiums, stricter inspections, fewer quotes, higher deductibles, lower limits, narrower terms, more exclusions, and greater demand for complete submissions. |
| Softening market | Favorable results, abundant capital, competition, and available reinsurance encourage growth and broader appetite. | More market options, pricing competition, broader terms, lower deductibles, higher capacity, and more flexible underwriting. |
The cycle is not uniform. Personal auto, coastal property, cyber, commercial casualty, workers’ compensation, and inland marine can move in different directions at the same time. An individual carrier can also be retrenching while the wider market is expanding.
Applying the concepts
Good advice connects the client’s facts to both coverage and carrier decision-making
Make the submission internally consistent. Named insureds, addresses, operations, payroll, sales, values, drivers, vehicles, contracts, and loss runs should describe the same risk.
Explain changes before the underwriter discovers them. Address losses, growth, new locations, roof work, safety improvements, discontinued operations, driver turnover, ownership, and material contract changes.
Separate eligibility from price. A risk may be acceptable but expensive, inexpensive but ineligible, or eligible only with changed coverage terms.
Challenge data accurately. Identify the report, disputed item, correction mechanism, and carrier process; preserve documentation and never alter an application to work around an underwriting result.
Compare the whole offer. Rate, premium, form, exclusions, limits, deductibles, valuation, endorsements, conditions, inspections, audit, claims service, security, and capacity all matter.
Primary law and technical resources
Sources
Texas Insurance Code Chapter 2251 — RatesRate standards, file-and-use filings, review and disapproval, public counsel objections, hearings, prior approval in specified circumstances, and exemptions.
Texas Insurance Code Chapter 559 — Credit Scoring and Credit InformationPermitted and prohibited uses, disclosure, adverse-effect notice, disputes, extraordinary events, filed models, and current-score re-rating rights.
Texas Legislature Online — SB 1643 Bill HistoryOfficial history showing Senate passage and the final House action: left pending in the Insurance Committee on May 20, 2025.
Texas Legislature Online — SB 1644 Enrolled Text2025 changes governing adverse-effect notices and periodic or requested policy re-rating with updated credit information.
Texas Department of Insurance — Workers’ Compensation Rate GuideCurrent loss costs, insurer loss-cost multipliers, rates per $100 of payroll, company comparisons, and account-level rating factors.
Texas Department of Insurance — Workers’ Compensation Policy and PremiumClassification, manuals, experience rating, premium, filings, and related Texas workers’ compensation resources.
LexisNexis Risk Solutions — Consumer PortalConsumer access and dispute resources for personal reports, including claims-history information.
Verisk — Risk Selection and UnderwritingIndustry underwriting, risk-data, and personal-auto decision-support concepts referenced in the research.
Independent Insurance Agents of Texas — Rate and Form RegulationTexas agency-oriented overview of rate and form regulation; verify legal conclusions against current statutes and TDI guidance.
Regulatory warning: Rate statutes, TDI rules, filing instructions, carrier plans, and underwriting programs can change. Confirm the current rule and the line-specific statute before advising that a factor is permitted, prohibited, filed, approved, or exempt.