North Carolina Rate Bureau's 68% Dwelling Rate Indication Settled at 10%

The North Carolina Rate Bureau filed for a 68.3% average statewide increase on dwelling policies on October 30, 2025; Commissioner Mike Causey settled at 5% per year for two years on April 22, 2026, saving consumers more than $268 million against the full request (NC DOI, April 2026). The July 6, 2026 evidentiary hearing was canceled. It is the third consecutive filing cycle in which the bureau indication has exceeded 40% and the third consecutive settlement in a narrow 8-to-10% band: 42.6% filed, 9.9% approved in 2022; 50.6% filed, 8.0% approved in 2023; 68.3% filed, 10.0% approved in 2025. Dwelling policies cover non-owner-occupied residential properties of no more than four units, distinct from homeowners coverage, and the rate is set once for all NCRB member carriers under NCGS §58-36. For pricing actuaries at member carriers, the gap documents a persistent disagreement about trend and catastrophe load assumptions. For reserve actuaries, it triggers a disclosure obligation that cannot be satisfied by pointing at the settlement.

How the Loss Ratio Indication Method Builds a 68% Rate Need

North Carolina's bureau ratemaking for dwelling policies uses a loss ratio indication method. The formula is:

Indicated Rate Change = [(Trended Ultimate Loss & LAE Ratio) / (Target Loss & LAE Ratio)] − 1

The target loss and LAE ratio equals 1 minus the permissible expense ratio and target profit provision. If the permissible expense ratio is 28% and the target profit provision is 5%, the target loss and LAE ratio is 67%. A 68.3% indication means the trended ultimate loss and LAE ratio exceeded the 67% target by roughly 46 points, implying a trended ultimate ratio in the range of 113% to 115% before the expense adjustment is applied.

The trended ultimate loss and LAE ratio stacks three components. Non-CAT losses are developed to ultimate using short-tail development factors, typically 1.02 to 1.05 on 12-month data for dwelling fire and allied lines, then projected forward by a fitted loss cost trend. A catastrophe load, derived from the average annual loss per $1,000 of insured value from licensed vendor catastrophe models, is added on top. A loss adjustment expense provision, typically expressed as a percentage of losses, completes the stack. The total of these three components is what the NCRB compared against the 67% target.

Dwelling is genuinely short-tailed. Most claims reach near-ultimate within 18 to 24 months of the accident period for fire, windstorm, and water damage losses. Loss development factors on 12-month data are rarely where the actuarial contest is fought in a dwelling rate filing. That shifts the analysis entirely to trend and the catastrophe load.

Trend Period and CAT Load: What Drives the Indication

The NCRB reviewed claim data from 2019 through 2023 to build its trend indication (Island Free Press, 2025). That five-year window captures several high-loss periods in sequence: the 2020 to 2021 supply chain disruption and construction cost acceleration; the 2022 to 2023 severe convective storm surge across the Southeast; and the post-pandemic spike in dwelling replacement cost benchmarks as labor and materials costs remained elevated. Munich Re's 2024 natural catastrophe data shows U.S. severe convective storm losses exceeded $50 billion in both 2023 and 2024, consecutive records. A linear or exponential trend fitted through dwelling loss costs over that specific five-year window would produce a substantially higher trend factor than any window anchored in the three years before 2020. Annual loss cost trends in the 12% to 15% range over a five-year projection period can double the indicated rate level relative to a shorter or earlier trend selection. Trend period is the variable most likely to explain the divergence between the bureau and the commissioner's actuary.

The catastrophe load in a bureau dwelling filing reflects expected annual losses from both named storm exposure along the NC coast and severe convective storm risk statewide, derived from vendor catastrophe models (Verisk AIR, Moody's RMS, CoreLogic) applied to the in-force dwelling portfolio. The modeled average annual loss per $1,000 of insured value, once loaded for a reinsurance cost-of-capital margin, is added to the non-CAT trended loss ratio. If the modeled AAL has increased materially over the filing period, reflecting higher frequency of SCS events and higher replacement cost per unit, the CAT load contribution to the trended ultimate loss ratio can grow by 20 or more percentage points on a multi-year trajectory. The commissioner's actuarial staff can challenge the indicated rate on three distinct grounds: the trend measurement period (truncating the window to exclude the 2021 to 2023 high-loss run reduces the trend factor significantly); the catastrophe load methodology (disputing whether the full reinsurance cost pass-through should be included); and the expense and profit provisions. The settlement produced no public record of which challenge prevailed.

Three Cycles, Three Growing Gaps

The pattern across three consecutive filing cycles documents both the bureau's escalating loss cost view and the commissioner's consistent restraint:

The gap has widened by 26 points over three cycles while the approved rate has stayed in a narrow 8-to-10% band. The escalating indication reflects compounding loss cost trends, rising catastrophe model outputs, and increasing reinsurance costs. The flat approved rate reflects the commissioner's sustained challenge to those same actuarial inputs. Each approved rate that falls short of the indication leaves member carriers writing dwelling business at premium levels below what their own ratemaking supports, accumulating prospective inadequacy into each successive policy year. The 2025 filing's two-stage structure, 28.5% in Year 1 followed by 30.9% in Year 2 (approximately 68.3% cumulative), settled at 5% each year because the commissioner applied consistent actuarial pressure on the trend and CAT components that the bureau had built into those stages.

Reserve Actuary Obligations Under ASOP No. 36

When a commissioner approves rates materially below the actuarial indication, the ASOP No. 36 disclosure obligation at member carriers activates. Section 3.6 of ASOP No. 36 (Actuarial Standards Board, current edition) addresses situations in which reserves or reserve opinions are affected by regulatory or other constraints: the actuary must disclose the nature and, to the extent estimable, the magnitude of the impact on reserves. A 63-point gap between indication and approved rate is not marginal; it is a material regulatory constraint that must appear in the reserve opinion for any member carrier writing NC dwelling business under the approved rate structure.

The practical obligation for dwelling differs from the typical ASOP No. 36 constraint scenario, where the issue is usually a reserve level floor set by statute rather than by a rate inadequacy. For dwelling policies written at the approved 5% rate level, the constraint is prospective: policies will produce ultimate loss ratios above the target if the bureau's actuarial assumptions are approximately correct. The reserve actuary cannot certify loss and LAE reserves as adequate without considering whether the reserve for accident years written at the approved rate reflects the expected higher-than-target ultimate LR.

Calculating the Underpricing Adjustment

The underpricing adjustment for prospective dwelling IBNR loading can be framed as a premium deficiency calculation. If the indicated trended ultimate loss ratio is approximately 113% and the target is 67%, writing at the approved rate implies a projected ultimate LR well above the target for business written in the approved rate period. The specific calculation depends on how the approved rate compares to the indicated rate on a per-territory basis rather than just at the statewide average.

For a carrier with $10 million in dwelling earned premium in North Carolina: if the expected ultimate LR at the approved rate is 85% rather than the 67% target, the expected reserve shortfall from underpricing is approximately $1.8 million for that accident year's exposure. That $1.8 million must either be reflected in carried IBNR or disclosed as a departure from actuarially sufficient reserves in the reserve opinion. Neither option is comfortable when the gap is this large. The actuary signing the opinion must be specific about what assumption set would make the approved rate actuarially adequate, and whether the carrier's own pricing actuaries have endorsed that set or simply accepted the settlement as the rate environment constraint.

The territorial structure of the settlement complicates this loading. The 5% statewide average is an allocation of a statewide average across materially heterogeneous territories. Eastern coastal NC jurisdictions, particularly the Outer Banks, Craven, Carteret, Pender, and Onslow counties, carry loss cost multiples 2 to 3 times the statewide mean due to named storm and severe convective storm exposure (NCRB rate structure; NAIC homeowners data call geography). A carrier with 30% of its dwelling premium concentrated in those coastal counties will have a materially larger adequacy gap than the 63-point statewide figure implies. A carrier concentrated in the Piedmont or western NC will have a smaller one. The ASOP No. 36 disclosure is most critical for carriers with material eastern NC exposure, precisely because the approved 5% increase is furthest below the territory-specific indication in the highest-risk territories.

Mitigation Credits and the Eastern NC Exposure Problem

The settlement includes mitigation credits for fortified homes and wind-resistant construction in many eastern NC territories (NC DOI, April 2026). These credits function actuarially as prospective loss cost adjustments for qualifying risks: a carrier can apply a reduced expected loss ratio to policies that meet the fortified construction standard, narrowing the territory-specific adequacy gap for credit-eligible policies. The actuarial logic is straightforward. If the territory-level indication is driven partly by losses on wind-vulnerable construction, then policy-level credits that select for lower-vulnerability risks reduce the expected loss ratio for the rated segment. Over time, as a larger share of the eastern NC dwelling stock meets the fortification standard, the statewide average loss cost comes down and the indicated rate requirement moderates.

This does not resolve the near-term reserve disclosure obligation. The reserve actuary cannot rely on the credit program's future impact to satisfy the ASOP No. 36 requirement without quantifying how many policies are expected to qualify, what loss ratio improvement each credit tier is expected to produce, and how that improvement compares to the remaining gap. The credit program narrows the indicated-to-approved gap at the margin. It does not close it for the broader non-fortified dwelling book in 2026 and 2027.

The Actuarial Record the Settlement Did Not Produce

Under NCGS §58-36, the commissioner may disapprove a bureau filing and require a formal evidentiary hearing at which both sides submit actuarial testimony. That process would have produced a public actuarial record: competing expert opinions on trend period selection, CAT load methodology, and the appropriate reinsurance cost pass-through for the filed indication. The settlement bypasses that process entirely. Commissioner Causey's April 22, 2026 press release confirmed the settlement and stated it would save consumers $268 million; it did not identify which actuarial assumptions the department challenged or quantify how the department's actuarial staff arrived at a 5% annual adequate rate.

The result is a 63-point gap with no public explanation of where the two actuarial positions diverge. Pricing actuaries at member carriers who are trying to determine whether to file independent deviation from the bureau rate have no settled actuarial benchmark from the current cycle. They know the approved rate; they do not know the actuarial basis the commissioner would accept for a materially different rate. The precedent set by three consecutive settlements is that the commissioner will approve approximately 8% to 10% regardless of the filed indication. Whether that approximation remains actuarially defensible depends on actual dwelling loss experience emerging in 2026 and 2027 at the approved rate level. Dwelling actuaries at member carriers will know before any future regulatory discussion whether those years are developing toward the bureau's view or the department's.

Further Reading

• TWIA Finds Windstorm Rates 9% Adequate After Texas Legislative Relief
• NAIC Homeowners Data Call Brings ZIP-Level Scrutiny to Territorial Rate Filings
• Florida Homeowners Rate Relief Rests on Three Actuarial Conditions
• Texas Claims Nine of Ten Top Homeowners Rate Hikes in Q1 2026
• The P&C Reserve Adequacy Playbook for a Softening Market

Sources

1. NC DOI, "Commissioner Causey Negotiates Dwelling Rate Settlement With Insurance Companies," April 22, 2026 (ncdoi.gov)
2. NC DOI, "Insurance Companies Request 68.3% Increase for Dwelling Policies," November 3, 2025 (ncdoi.gov)
3. Insurance Journal, "North Carolina Settles on 10% Dwelling Insurance Rate Increase Over 2 Years," April 28, 2026 (insurancejournal.com)
4. Island Free Press, "Q&A: Inside the N.C. Rate Bureau's New Dwelling Insurance Rate Filing" (islandfreepress.org)
5. NC DOI, "Commissioner Negotiates Settlement on Dwelling Rate Request," May 30, 2024 (ncdoi.gov)
6. NC DOI, "N.C. Rate Bureau Requests an Overall 50.6% Rate Increase for Dwelling Policies," July 31, 2023 (ncdoi.gov)
7. Actuarial Standards Board, "ASOP No. 36: Statements of Actuarial Opinion Regarding Property/Casualty Loss and LAE Reserves" (actuarialstandardsboard.org)
8. Insurance Journal, "Time to Change North Carolina's Unique (and Antiquated) Rate Bureau System?" July 9, 2025 (insurancejournal.com)