Moving in with your partner doesn't make you an equal tenant in the Netherlands

I talk to a lot of renters who move in together and assume the law has their back. They're both registered at the address. They split rent down to the cent. Both their names show up in the email thread with the landlord. So they figure they're equal in the eyes of the law.

They're not. Not even close.

In Dutch law there are three things you can be in a rental: the hoofdhuurder (main tenant, the name on the contract), the medehuurder (co-tenant, with full equal rights), and the medebewoner (co-resident, someone who just lives there). Most partners who "move in" are co-residents. And a co-resident has no legal claim to the home at all.

That distinction sounds bureaucratic until the relationship ends, or the main tenant takes a job in Berlin, or worse, dies. Then the gap between what you assumed and what you actually have becomes a very real eviction notice.

A medehuurder shares everything with the main tenant — equal rights, equal obligations. Both are jointly responsible for the rent. Both have full tenant protection. And critically, a co-tenant has the right to stay in the property if the other person leaves or dies.

A medebewoner has none of that. If the main tenant leaves or is evicted, the co-resident has to go too. No say in disputes with the landlord. No standing to object to a rent increase. No succession rights — meaning if your partner dies and you were never made a co-tenant, you can be required to vacate the home you've lived in for years.

This is the part that catches people off guard. You can pay half the rent for five years and still be, legally, a guest who's allowed to stay at the main tenant's pleasure.

Here's where Dutch law is actually clean and unambiguous. If you're married or in a registered partnership (geregistreerd partnerschap) and you both live at the rental address, you are automatically co-tenants. It doesn't matter whose name is on the contract. You don't have to ask anyone. The protection is just there.

That's it. That's the whole list of automatic routes.

No marriage, no registered partnership — no automatic rights. And the Netherlands does not recognise "common law marriage." I cannot stress this enough to the British, American, and Australian renters I talk to who assume that living together for a few years builds up some kind of legal status. It doesn't. Long-term cohabitation, by itself, creates no rights between partners under Dutch law.

With over 1.1 million unmarried couples in the country as of 2024, that's a lot of people walking around with a protection level they think they have but don't.

This one comes up constantly. Couples sign a samenlevingscontract — a cohabitation agreement — at the notary, feel very official about it, and assume it covers their housing too.

It doesn't. A cohabitation agreement can sort out your finances, pension arrangements, who owns the couch. What it cannot do is grant tenancy rights. Only the landlord or the court can make you a co-tenant.

So you can have a notarised contract sitting in a drawer that proves you're a committed couple, and it will do nothing to keep you in the apartment if your partner moves out and you were never registered as medehuurder on the lease itself. Two completely separate legal tracks.

If you want real protection without getting married, you have to opt in. And it's a process, not a checkbox.

The main tenant formally requests the landlord, in writing, to add the partner as a co-tenant. The landlord then weighs it against the criteria that both they and the courts apply: the couple has typically lived together for at least two years, there's a genuine "sustainable shared household" — shared finances, joint responsibilities — and the prospective co-tenant can independently afford the rent.

That last one bites hard in cities like Amsterdam and Utrecht, where landlords already demand income three to four times the monthly rent. If your partner can't show they could carry the place alone, the request can stall.

The landlord can approve or refuse, often at their own discretion. If they refuse, you can take it to court — and the court only grants co-tenancy if those same criteria are met. The whole thing can drag on for months, especially once a judge is involved. So the partner sits in legal limbo the entire time, with no guarantee of approval. You need to be gathering joint bank statements, utility bills, and proof of a shared household from day one, not scrambling for it after a breakup.

This is where international couples get hit hardest, and there's a pattern I see again and again.

Take a fairly standard case: an expat in Amsterdam signs the lease, his partner moves in and gets registered at the address — as a co-resident, never as a co-tenant. Life is fine. Then his contract abroad calls and he leaves the country. Suddenly his partner, who'd lived there the whole time, had to go to court to secure any right to stay. The court eventually ruled in her favour, but only after she proved a long-term, shared household. Months of stress and legal cost for something they'd both assumed was settled the day she got her BSN and registered at the gemeente.

Registering at the address feels like the official, government-stamped moment where you become "real." It isn't, for tenancy purposes. Your BSM registration tells the municipality where you live. It says nothing to the landlord about your rights to the lease.

And the 2026 reforms didn't change any of this. There's been a wave of updates to rent regulation and housing allowances, but the co-tenant versus co-resident rules are untouched. Nobody fixed this gap. It's still on you to close it.

First, check whose name is on the lease. Not the emails, not the doorbell, not the bank transfer for rent — the actual huurcontract. That single document is what decides almost everything.

Second, if you're not married or in a registered partnership and you want protection, request co-tenancy in writing as early as you can. Don't wait until year three. Start building the paper trail of a shared household now — joint account, shared bills, the works — because that's exactly what a court will ask for if the landlord says no.

Third, if the landlord refuses and you've genuinely got two years of shared life behind you, talk to a tenancy lawyer. The court route exists for a reason and people do win.

And honestly — before any of that, you have to find the place at all, which in this market is its own brutal sport. That's the part House Hunter handles: we watch 1,000+ rental sites and ping you the moment a matching listing goes live, so you're not refreshing Pararius at midnight. But getting the keys is step one. Sorting out who's actually protected on the lease is the step almost everyone forgets — and the one that costs the most when it goes wrong.

I think the Dutch system is honestly behind on this. It protects landlords and keeps the market orderly, but it leaves a million-plus cohabiting couples carrying risk they don't even know they're holding. Until the law catches up to how people actually live, the only defence is knowing the rules cold and acting early.