How to Check a Dutch Rent Increase Notice

Turn the Letter Into a Checklist

A rent-increase notice can feel final because it arrives with a new amount and payment date. It is still a calculation that should be checked. The correct result depends on the contract, rental sector, WWS position, statutory rules for the effective date, and the procedure the landlord used.

This guide focuses on reviewing the notice itself. For the current 2026 percentages and a broader legal explanation, use our 2026 rent-increase rules guide.

1. Preserve the Complete Notice

Save the email, attachment, envelope, and date received. A valid proposal may need to identify the old rent, proposed rent, increase amount or percentage, effective date, and information about objection rights. Requirements differ by sector and procedure.

If the notice only shows a new total, request a breakdown. You need the basic rent and service costs separately before you can recalculate anything.

2. Identify the Rental Sector

Do not decide from the current monthly rent alone. Classification can depend on the initial basic rent, contract start date, WWS points, property type, and legislation that applied when the tenancy began.

The main categories are:

• social or other regulated rent;
• regulated mid-market rent for qualifying newer contracts;
• free-sector rent.

A housing corporation can confirm its classification, while private tenancies may require the contract and WWS evidence. The Huurcommissie rent check and a tenant adviser can help where the position is uncertain.

3. Separate Basic Rent and Service Costs

Annual percentage limits concern basic rent, or kale huur. Service costs are advances for agreed services and should be reconciled against actual allowable costs through the required annual statement.

Create a simple table:

Item	Current	Proposed	Basis supplied?
Basic rent	€	€	Contract or statutory increase
Service-cost advance	€	€	Estimate and latest statement
Utilities advance	€	€	Estimate and reconciliation
Total	€	€	Sum only

This prevents a service-cost change from being mistaken for a larger basic-rent increase.

4. Read the Contract Clause

Copy the complete indexation clause and any general provision it references. Look for the price index, reference month, additional margin, date, cap, and notice method.

Then compare three numbers:

1. the result under the contract;
2. the applicable statutory ceiling;
3. any WWS maximum basic rent.

The landlord is not automatically entitled to the largest number. A lower valid contractual result can control, while a clause cannot override mandatory limits. Some consumer indexation wording can raise fairness questions that need individual legal assessment.

5. Check the Date of the Previous Increase

Ordinary annual increases generally cannot be stacked repeatedly within a short period. Check when the previous basic-rent increase took effect, not just when the letter was sent. Exceptions can exist, including changes connected to improvements or delayed proposals.

Do not confuse an annual rent increase with:

• a service-cost reconciliation;
• a change in utility advance;
• a rent adjustment after improvements;
• a WWS or initial-rent decision;
• a new contract after a genuine change of tenancy.

Each has its own basis and procedure.

6. Recalculate the Arithmetic

Apply the stated percentage to the current basic rent and round according to the applicable method. Compare your result with the proposed basic rent.

For example, 4.4% of €1,500 is €66, producing €1,566. This arithmetic example does not prove that 4.4% is lawful for that tenancy. Sector, contract, timing, and notice still need to support the proposal.

Where the WWS applies, confirm that the result does not exceed the current maximum basic rent for the home's points.

7. Check Procedure and Deadlines

Regulated-rent proposals can have formal advance-notice and objection requirements. Free-sector increases often rely more directly on the contract but still remain subject to statutory ceilings and other law.

Use the current Huurcommissie and Rijksoverheid information for the effective date. Do not rely on a fixed “one month” or “six week” rule from an old article without confirming that it applies to your case.

8. Write a Focused Response

If the proposal appears wrong, respond in writing. Include:

• names, address, and contract date;
• old and proposed basic rent;
• proposed effective date;
• the clause or statutory rule relied on;
• your calculation and evidence;
• the correction you request;
• a reasonable deadline for reply.

Keep the tone factual. You can accept an undisputed part without accepting an unsupported remainder, but get advice on the correct payment approach.

9. Do Not Create Arrears by Accident

Ignoring the notice or cancelling the full rent payment can create a second dispute. Continue paying the undisputed rent on time unless a qualified adviser or binding decision tells you otherwise.

If an automatic debit takes an amount you dispute, preserve the bank record and seek prompt advice rather than repeatedly reversing payments without a plan.

10. Choose the Correct Dispute Route

The Huurcommissie can decide defined rent matters. Some free-sector or contractual disputes may require the civil court, while a municipal tenant team, Juridisch Loket, union, or lawyer can help identify the route.

Deadlines can be decisive. Ask for help as soon as the proposed calculation remains unresolved, not after months of paying it.

How Huisly Fits In

Huisly is useful if the increase changes your longer-term housing plan. It lets you search current rent and sale listings, compare supported property information and original sources, explore a viewport-based map, and bookmark active listings. Mobile Free includes one alert with one location. Premium supports up to three alerts, up to ten locations per alert, and instant high-priority notifications.

Huisly does not receive your contract or validate a landlord's notice. Use official sources and qualified advice for the existing tenancy, and use Huisly to understand current alternatives without treating an asking rent as proof that moving is cheaper.

Notice Review Summary

• Save the full notice and receipt date.
• Identify the sector and contract start date.
• Separate basic rent from service costs.
• Copy the full indexation clause.
• Check the previous increase date.
• Recalculate the proposed amount.
• Compare statutory and WWS limits.
• Confirm notice and objection deadlines.
• Respond in writing and keep paying the undisputed rent.
• Use the correct Huurcommissie or court route.

The strongest response to a rent increase is not a generic objection. It is a short, documented explanation showing exactly which part of the sector, clause, calculation, or procedure needs correction.