Hospital indemnity looks like an easy add-on for a health plan. It pays a fixed cash amount per day in hospital, it is priced on claims a payer already understands, and the reported loss ratios are low. One carrier group already does it at scale. So why don't more commercial payers add it as a business line?
The short answer: the data that makes it look attractive covers only part of the market, the loss ratio is not the margin, and the companies that win in this line usually win on distribution, not on claims knowledge.
What the 2024 data shows
The NAIC's 2024 Accident and Health Policy Experience Report reports hospital indemnity under the line "Other Medical (Non-Comprehensive)" [1]. In the individual segment:
- Total premium: $2.11B earned in 2024, at a segment loss ratio of 42.2%.
- UnitedHealth Group: $1.03B of premium, 48.9% of the segment, loss ratio 43.1%, about 440,000 policies.
- Aflac: $514M, 24.4% of the segment, loss ratio 47.9%, about 1.01 million policies.
- Concentration: the top five groups hold 88.6% of the segment. The HHI is about 3,080, well above the 1,800 line the 2023 DOJ/FTC Merger Guidelines use for "highly concentrated" [2].
Look at who else is on the list. Apart from UnitedHealth, the health plans are marginal: Medical Mutual of Ohio writes $36M, and Blue Cross Blue Shield of Kansas, Louisiana Health Service, HCSC and CVS each write between a few thousand and about $1.3M. The rest of the top 20 are life and supplemental insurers: Aflac, Guarantee Trust, State Farm, Unum, Globe Life, Wellabe, CNO, Mutual of Omaha.
UnitedHealth is not a one-line outlier, either. Across accident, critical illness and individual hospital indemnity it wrote about $2.07B in 2024, and it is the second-largest group in group critical illness, with a 12.0% share.
You can explore every line, segment and carrier in the Supplemental Health Market Explorer.
What the data hides
Group business is missing. The NAIC has no group line for hospital indemnity. Group policies, which are most of what employees buy through work, are reported inside "Other group care" alongside unrelated products. The "nearly 50% of the market" figure is 50% of the individual market only. Nobody can read the worksite hospital indemnity market share from this report [1].
The line is not pure. "Other Medical (Non-Comprehensive)" also includes hospital-only, surgical, outpatient indemnity, ICU and transplant policies [1].
Coverage has gaps. Only filers with state insurance departments appear. Self-insured employer plans and California DMHC-regulated plans are excluded [1].
The leader's book looks different from the rest. UnitedHealth's premium works out to about $2,340 per policy per year. Aflac's is about $510. That gap points to a different product and a different buyer, such as richer benefits or an older population, rather than a better-run version of the same business. The report cannot tell you which. State-level AHPEE data and public rate filings would.
A 43% loss ratio is not a 57% margin
Loss ratio counts claims and reserve changes. Everything else still has to come out of the remaining premium:
- Commissions to brokers or enrollment firms
- Billing, claims handling and member service
- Premium taxes, which vary by state
- The fixed cost of building, filing and marketing the product
Take a plan with 250,000 eligible members, 3% take-up and a $55 monthly premium, close to the NAIC average for this line. Assume a 42% loss ratio, 20% commissions, 10% administration, 2% premium tax and $1M of annual fixed cost. The line earns about $4.95M of premium and keeps a margin of roughly $287K, or 5.8%.
Raise the loss ratio by 10 points, which is what adverse selection looks like in a voluntary product, and the margin turns negative. The same happens if take-up halves, or if the product has to go through brokers at 10 points more commission.
The Ancillary Line Viability Check runs this with your own numbers.
Why most commercial payers stay out
None of the following is proven by the NAIC data. These are the questions a payer should answer before deciding.
Distribution is the product. Supplemental lines are sold through worksite voluntary-benefit enrollment and agents, and the employee pays. A commercial payer's group sales team sells major medical to HR. Owning the buyer for one does not give you the buyer for the other.
The claims-data advantage is smaller than it looks. To stay outside major-medical regulation as an excepted benefit, fixed indemnity coverage has to be a separate policy, pay a fixed amount per period regardless of actual expenses, and not be coordinated with the health plan's own exclusions. A payer can price with its claims history, but it cannot integrate the product into the medical plan the way the data might suggest [3].
It is usually a different licence. Most of the carriers on the list are life and accident-and-health insurers. UnitedHealthcare's own hospital indemnity page names Golden Rule Insurance Company as the underwriter [4]. A plan whose entities are HMOs or health-only insurers may need another entity and new form filings, state by state.
The rules keep moving. In 2024, federal regulators required a notice on group fixed indemnity coverage. In December 2024, the U.S. District Court for the Eastern District of Texas vacated that notice requirement [5]. A line whose disclosure rules change from year to year carries compliance cost before the first policy is sold.
Optics. A plan that sells cash coverage for the gaps its own deductible leaves is, in effect, advertising those gaps. Some plans will decide the revenue is not worth that conversation with employers and brokers.
What to check before adding the line
- Your eligible base and channel. Who can you actually offer it to, and through whom? Your own members through renewal or enrollment flows behave differently from employees reached through brokers.
- Take-up you can measure. Test it with a pilot or a limited filing before building the full product.
- Expected claims on your own population. Admissions and length of stay from your claims history give you a loss ratio grounded in your members rather than the NAIC average.
- The licensing entity and filing states. Confirm which legal entity can write the product and how long rate and form approvals take where you want to sell.
- The break-even take-up. If the business case needs take-up you have never seen in a voluntary product, stop there.
The interesting question is not why other payers don't copy UnitedHealth. It is whether your plan has a channel and a member base where the economics hold after distribution and fixed cost. That is a data question, and it can be answered before anyone files a policy form.
Sources
- NAIC, "Accident and Health Policy Experience Report," 2024 data, published 2025. https://content.naic.org/sites/default/files/publication-ahp-lr-accident-health-report.pdf
- Paul, Weiss, "DOJ and FTC issue final 2023 Merger Guidelines," December 2023. https://www.paulweiss.com/insights/client-memos/doj-and-ftc-issue-final-2023-merger-guidelines
- Mintz, "Hospital and fixed indemnity policies as excepted benefits," August 2016. https://www.mintz.com/insights-center/viewpoints/2226/2016-08-26-hospital-and-fixed-indemnity-policies-excepted-benefits
- UnitedHealthcare, "Hospital indemnity insurance." https://www.uhc.com/dental-vision-supplemental-plans/hospitalization-insurance
- The Horton Group, "Texas court rejects new fixed indemnity coverage notice requirement." https://www.thehortongroup.com/resources/texas-court-rejects-new-fixed-indemnity-coverage-notice-requirement/
Nimbotools is not affiliated with any insurer mentioned. This note uses only public sources and is not legal, actuarial or regulatory advice.