The cheapest health insurance fund in Belgium
The cheapest route to Belgian statutory health cover is the public auxiliary fund, which charges no complementary contribution at all. Recognised mutualities charge a monthly complementary contribution running up to around €16, in exchange for a package of extra benefits. Since the statutory reimbursement is identical either way, the whole decision is about that package.
As of August 31, 2026, the honest answer is that cheapest and best value are different questions here. The auxiliary fund is rational for someone who would claim nothing back: no orthodontics, no glasses, no physiotherapy, no psychological sessions. For a household that uses two or three of those in a year, a paid complementary package usually returns more than it costs, and the contribution gap between funds is small either way.
| Provider | Plan | Price | Key points | View plan |
|---|---|---|---|---|
 CAAMICheapest |
CAAMI | €0/month |
| View plan |
 Solidaris Brabant |
Solidaris Brabant | €8.50/month |
| View plan |
 MUTPLUS (Mutualité Libérale) |
MutPlus | €9.50/month |
| View plan |
 Helan |
Helan | €10.60/month |
| View plan |
 Mutualité Neutre |
Mutualité Neutre | €11.50/month |
| View plan |
 Partenamut |
Partenamut | €14.75/month |
| View plan |
 Mutualité chrétienne (MC) |
Mutualité Chrétienne | €15/month |
| View plan |
 Solidaris Wallonie |
Solidaris Wallonie | €16/month |
| View plan |
 Mutualia |
Mutualia | On request |
| View plan |
Prices and features surveyed on August 31, 2026. They may have changed since. Always check the offer on the provider’s website before signing up.
What you give up for a zero contribution
The public auxiliary fund delivers the compulsory statutory insurance in full: the same reimbursement rates, the same incapacity benefits, the same access to the annual cap on out-of-pocket spending. Nothing statutory is reduced.
What it does not provide is the complementary layer: contributions towards orthodontic treatment, glasses, dental care, physiotherapy sessions beyond the statutory quota, vaccines outside the reimbursed list, sports club membership, convalescence stays and home help.
It also generally means no access to the fund-branded hospital insurance products, which are sold to members in good standing with a complementary contribution. If you intend to buy hospital cover from a mutuality, that route requires being a member of one.
Running the arithmetic on your own household
Multiply the monthly contribution by twelve to get the annual cost. Then list what you would actually claim across a year and read off the benefit amount and the annual ceiling for each item in the fund's own schedule.
Orthodontics is usually the item that settles the question for families, because the amounts involved are large and the treatment runs over years. Glasses, dental care and physiotherapy are the next most common.
If the total you would claim is consistently below the contribution, the auxiliary fund becomes the rational choice. If it is above, the question shifts to which fund is generous on the specific items you use, not which contribution is lowest.
Check waiting periods before deciding. Most complementary benefits open only after a minimum period of membership, so a fund chosen for one expensive treatment next month will not deliver it.
Frequently asked questions
Is the public auxiliary fund a lower-quality option?
Not for statutory cover, which is identical by law across every organisation. It simply does not offer a complementary package, which is why it charges no complementary contribution. The trade-off is entirely about the extra benefits, not about the reimbursement of ordinary medical care or hospital stays.
How much do complementary contributions vary between funds?
In our table they run from nothing at the auxiliary fund up to around €16 a month at the higher end. The gap between paid funds is therefore modest in absolute terms, which is why the benefits schedule matters far more than the contribution when you are choosing between two mutualities.
Can I switch to the auxiliary fund to save money?
Yes, changes between organisations are possible at set dates provided your contributions are up to date and you have completed the minimum membership period with your current fund. Consider the benefits you would lose and any hospital insurance attached to your current membership before making the move.
Do I lose the annual cap on medical costs?
No. The mechanism that limits a household's total annual out-of-pocket medical spending according to income is part of statutory insurance, so it applies whichever organisation you belong to, including the public auxiliary fund. Complementary benefits sit on top of it, they do not replace it.