The rent increase letter went out, and now the same three questions come in

It's mid June, the letters about the maximum rent increase 2026 went out a few weeks ago, and you can feel it in your inbox. Not from one big complaint, but from a steady stream of the same questions. One person wants to know if that percentage is even allowed. Another hears that the upstairs neighbours pay ten euros more and wants to know why. And someone else read somewhere that they can still object and wants to know until when. Your colleague types out the fifth answer of the morning, and it's only Tuesday.

That wave isn't a sign that your letter was unclear. It comes around every year around 1 July, because the rent increase is the one moment when all your tenants find something in the post at the same time that has money attached to it. People only react once it affects them, and then they want to hear the answer from a person, not dig it out of an enclosed explanation. That's also why an even clearer letter won't solve it. What does work: recognising that the questions are the same three every year, and having your answer ready before the stream starts.

Question one: is this even the maximum rent increase 2026?

This is the question that comes in most often, and the answer depends on the type of home. According to de Rijksoverheid, a social rented home can go up by a maximum of 4.1% as of 1 July, while the ceiling for mid-range rented housing (middenhuur) sits at 6.1% and for the private sector at 4.4%. Three segments, three ceilings, and that's exactly where the confusion starts: a tenant who reads 4.4% online while their own increase is 4.1% quickly thinks something is wrong. Social rent also has a lower limit: if the basic rent is below 350 euros, you may increase it by a maximum of 25 euros instead of the percentage. The answer that reassures a tenant isn't "yes, that's allowed", but "in your segment this is the legal maximum, and you're exactly on it". That difference decides whether the phone call stops or carries on.

Question two: why does the neighbour pay more?

Two similar flats, two different letters. To the tenant it feels arbitrary, and without an explanation, that's how it lands. The cause is the income-based rent increase (inkomensafhankelijke huurverhoging). According to de Huurcommissie (the Huurcommissie, the independent body that rules on rent disputes), for an independent social rented home you may charge a higher income extra: a maximum of 50 euros for a higher middle income and a maximum of 100 euros for a higher income, instead of the percentage. The thresholds are based on 2024 income and differ for single- and multi-person households. That's not a detail you improvise over the phone. If you can show per case which income category the home falls into, the conversation shifts from "you're just making this up" to "this follows from the law, and here's how it's built up".

Question three: can I still do something about this?

The tenant asking this usually isn't angry yet, just looking for control. An honest answer helps you more here than an evasive one. A tenant can object to you as the landlord up until the start date, so before 1 July, and the Huurcommissie provides a model letter for this. Important to know, and to explain: for the standard increase up to 4.1% or 25 euros, a tenant cannot object on the basis of their income, while for the income-based increase this is possible under certain conditions, for example if their income fell in 2025. The Woonbond (the Dutch tenants' association) has a rent increase check that lets a tenant check for themselves whether an objection makes sense. Feel free to point them to it: a tenant who works out for themselves that the increase is correct won't call you again afterwards.

The pattern you already know a year in advance

What's striking about these three questions is that they never change. Next year the percentages will be different, but the questions are identical: is this allowed, why the neighbour, and can I do anything about it. That makes them the opposite of a surprise. You can prepare a short, fixed answer for each of the three, with the right figure and the right source link included, and link that as a short FAQ to your standard acknowledgement of receipt. Then your colleague's reply becomes a two-line confirmation with a reference, instead of the same explanation every morning again. The time saved isn't in typing faster once the question comes in, but in having it ready before the letter goes out. You'll notice that difference on your phone the week after 1 July.