Why checking your rental contract is so important in 2026

The housing market is overheated. After months of searching, you finally, finally got a "yes" on that nice apartment. The landlord sends the contract. Your fingers are itching to sign. STOP. Breathe in. Breathe out. Because right at this moment, in your euphoria, you are most vulnerable to an expensive legal mistake.

It might sound like fear-mongering, but the numbers don't lie: over 70% of private rental contracts in the Netherlands contain errors or clauses that are legally unsustainable. And with the introduction of the Affordable Rent Act in 2024, the playing field has completely changed. Time for a deep-dive: why is that check so crucial and what can go wrong?

1. The "Sign at the X" Trap

Landlords know the need is high. They often present the rental contract as a formality. "Here is the standard contract, please return signed by tomorrow or it goes to the next person." This time pressure is a known sales technique.

But a "standard" contract doesn't really exist. Every contract is a collection of agreements, and many of those agreements that landlords cobble together are:

• Outdated (based on old legislation)
• Copied from the internet (with American clauses that don't apply here)
• Or deliberately written to the tenant's disadvantage

2. The Affordable Rent Act: A Game Changer

Since July 1, 2024, the Affordable Rent Act has been in force. This is perhaps the biggest reform of the rental market in decades. What does this mean for you?

Previously, the "free sector" was the wild west. Did the landlord ask €1500 for 40m2? That was "market forces". Not anymore. The government has made the Housing Valuation System (WWS) or points system mandatory for mid-market rentals (up to 187 points).

3. Forbidden Clauses: The Big Bluff

Your contract is probably full of them: rules that sound strict, but go straight into the trash can in court. Why do landlords put them in? Simply to scare you off.

Some classics we see daily in our analyses:

• ❌ "No pets"Can almost never be forbidden (infringement on private life).
• ❌ "Minimum rental period 1 year"With a temporary contract, you as a tenant can cancel EVERY month.
• ❌ "Boiler maintenance"Major maintenance is legally the landlord's responsibility.
• ❌ "Admin fees: €250"Agency fees for the tenant are forbidden.

4. Service Costs: The Silent Profit Maker

Besides the basic rent, you often pay service costs. For gas/water/light, cleaning, or furnishing. This is where a lot of cheating happens.

Landlords sometimes ask for a fixed amount for service costs without a final settlement, or charge €200 per month for that old IKEA sofa. That is not allowed. Service costs must be an advance on the actual costs. Not a profit model. A contract check shows whether the requested service costs are realistic or if alarm bells should ring.

5. Why an AI check is better than "just reading it yourself"

"I'll just read it through myself," you might think. And that is wise. But Dutch legal language is a profession in itself. Do you know the subtle difference between a "contract for an indefinite period with a minimum duration" and a "temporary contract"?

That one word difference determines whether you have rent protection or could be on the street next month.

Our AI, trained on thousands of Dutch rental contracts and the Civil Code, not only reads what is written but understands the context. It recognizes patterns that are invisible to a layperson.