Healthcare in Croatia: HZZO, the twelve-month back-charge and the dopunsko

Your Dutch basic insurance ends on the day you deregister — not on 31 December, and not "if you just let it run on for a bit". From that moment the Croatian system applies, and it works differently from what you're used to: one compulsory insurer, a registration clock of eight days, co-payments per treatment, and a supplementary policy that practically everyone has. This article sets out the routes.

Route one: with a Dutch pension — the CAK and the S1

Croatia is an EU country and therefore a treaty country. Whoever brings a Dutch pension or a statutory benefit registers with the CAK as a treaty beneficiary. The CAK sends an S1 form; with it you enrol with HZZO, the Croatian health fund, and you receive Croatian care at the expense of the Netherlands. You pay the CAK a treaty contribution, which is usually deducted from your pension automatically. Apply for the S1 two to three months before departure — issuing takes weeks, and without an S1 you stand at the Croatian counter as uninsured.

Route two: with a Croatian job

Whoever goes to work in Croatia is insured via the employer: the health contribution is 16.5% and runs through the payslip. You only have to supply your OIB yourself and check the enrolment.

Route three: self-payer — and the back-charge you can avoid

Whoever has no S1 and doesn't work — early retirement, wealth — becomes a self-payer with HZZO, for roughly € 110 to € 130 per month. And here lies the trap that appears on no Dutch site: HZZO in principle charges new self-payers a back-charge of twelve months' premium for the period before arrival. You escape it by showing that you were insured elsewhere in the EU during those twelve months.

The solution is one letter: before departure, ask your Dutch health insurer for a certificate of cover for the past year. One sheet of A4, well over a thousand euros' difference.

The clock: eight days

Registering and deregistering with HZZO must happen within eight days of the change of status — after your registration with the police, that is, or after the start of your job. That's short; put it in the same week as the MUP appointment.

In practice: participation, and therefore the dopunsko

The Croatian system works with participation: with every treatment you pay a part yourself, from € 1.32 up to a maximum of € 530.88 per bill. That's why almost every Croat has a dopunsko — the supplementary insurance that covers precisely those co-payments. The policy from HZZO itself costs € 15 per month since 1 February 2026 (€ 180 per year; older guides still mention € 9.29). Take it out straight away at enrolment, then not a single bill starts to pile up.

What else you need to know

The quality of care is good in the cities; on the islands and in smaller coastal towns the provision is thinner and anything more serious goes by boat or by road to Split, Rijeka or Zagreb — weigh that in your choice of where to live, certainly with a chronic condition in the family. And bear in mind that the counter, the GP and the pharmacy work in Croatian: bring someone who speaks the language at the start, or choose a practice that can manage English.