The remaining out-of-pocket expenses after intervention by the mandatory health insurance represent a financial item that most insured individuals underestimate, particularly regarding non-reimbursed care and excess fees. Taking out a supplementary health insurance plan allows for coverage of this differential, but the choice of contract requires a technical analysis that goes well beyond the simple level of reimbursement displayed.
Responsible contract and future essential contract: what changes for your supplementary health insurance
The regulatory framework for supplementary health insurance currently relies on the responsible contract, which conditions the tax and social benefits granted to organizations on a base of minimum guarantees and reimbursement ceilings. Almost all individual and collective contracts are aligned with this format.
A government report submitted on September 23, 2026, proposes to replace this system with an essential contract, refocusing on care deemed scientifically relevant. Complementary guarantees beyond this base would be less favored in terms of tax and social benefits. For insured individuals, this means that high-end contracts could cost proportionally more, as the tax advantage would be concentrated on the core guarantees.
We recommend checking, before any subscription, whether the proposed contract falls within the scope of the current responsible contract and how the organization anticipates this possible regulatory evolution. A contract that covers extensively today could see its taxation deteriorate tomorrow, with a direct impact on the net premium. The online comparison tools offered by the supplementary health insurance help identify the guarantees that fall under the mandatory base and those that are optional.
Transfer of costs to mutuals: anticipating the rise in premiums
The underlying trend is not limited to a reform of the responsible contract. Several expenditure items are being considered for a transfer from the mandatory health insurance to supplementary plans. This mechanism, already observed in optics and dental care with zero out-of-pocket expenses, could expand.
The increase in premiums is not solely explained by the consumption of care. The taxes imposed on supplementary plans constitute a structural factor.
When choosing a contract, we observe that the benefits/premiums ratio (the redistribution rate) remains the best indicator of the real value of a mutual. An organization that returns a higher share of its premiums in benefits offers a better return for the insured, regardless of the gross amount of the premium.
Prevention and associated services: an underutilized selection criterion
The government proposals aim to involve supplementary plans more in prevention policies, with a minimum share of premiums dedicated to this activity. This is no longer just a marketing argument: prevention is becoming a structuring criterion for supplementary health insurance contracts.
In practice, the concrete programs vary significantly from one organization to another. Here are the prevention items that deserve to be checked in the general conditions:
- Coverage of periodic screening assessments (cardiovascular, cancers, diabetes) beyond the calendar of the mandatory health insurance
- Packages for managing chronic diseases and long-term conditions (ALD), including dietetics, adapted physical activity, and psychological follow-up
- Mental health prevention programs, with easier access to consultations with psychologists or psychiatrists without excess fees
- Targeted actions for seniors: fall prevention, hearing assessments, memory workshops
A contract that incorporates these prevention items reduces curative care expenses in the medium term. The insured benefits from improved coverage quality and better control over their future premium.
Hospitalization guarantees and routine care: technical points to arbitrate
The supplementary health insurance plays a crucial role during hospitalization. Excess surgical fees, the daily hospital fee, and private room costs generate out-of-pocket expenses that can reach several hundred euros per day.
To make a good choice, it is necessary to distinguish two levels of reading in the guarantee tables:
- The reimbursement expressed as a percentage of the Social Security reimbursement base (BR): a contract at 200% BR in hospitalization covers double the conventional rate, which absorbs most of the excess fees in sector 2
- The private room package, expressed in euros per day: check that it covers at least the average rate practiced in establishments in your geographical area
- The guarantees in routine care (consultations, pharmacy, analyses): a contract focused on hospitalization but weak in routine care generates a daily out-of-pocket expense that eventually becomes burdensome
The arbitration between hospitalization and routine care depends on the profile of the insured. An active individual without chronic pathology may prioritize strong hospitalization coverage and moderate routine care. An insured person with ALD or under regular treatment needs the opposite balance.
Collective or individual supplementary health insurance: impact on the contract
The company mutual, mandatory for employees in the private sector, generally offers a base of guarantees partially funded by the employer. The collective contract benefits from a favorable tax framework: the employer’s contribution is not subject to social contributions within certain limits.
However, the guarantees of the collective contract do not always correspond to individual needs. An employee with specific needs in optics or dental care may benefit from taking out an individual supplementary plan to cover the differential. Self-employed workers, on the other hand, have no obligation for mutual insurance and must build their coverage from scratch, incorporating tax deductibility (Madelin law) into the calculation of the real cost.
The reform towards an essential contract could modify the advantages associated with collective contracts. An employee who changes employers or retires loses their company mutual and must switch to an individual contract, often more expensive for equivalent guarantees. Anticipating this transition by comparing offers before the termination of the collective contract avoids a period of under-coverage.
The choice of a supplementary health insurance plan involves a technical arbitration between the level of guarantees, net cost after tax benefits, and the contract’s ability to absorb future regulatory changes. Insured individuals who examine the redistribution rate, prevention programs, and the robustness of hospitalization coverage make a more sustainable choice than those who only compare the amount of the monthly premium.
