Free tool · updated 12 September 2026

The Dutch letter decoder

Every official letter in the Netherlands is built from the same few sentences. These are the eight letters a newcomer gets in the first year, with the lines they always contain read into English, the one thing to do, and the rule for the deadline. When a letter on your mat matches a card, you know what it wants before you finish your coffee.

Three rules apply to all of them. The deadline runs from the dagtekening, the date printed on the letter, not the day you opened it. Bezwaar (objection) is a right with a fixed window, usually six weeks, four for the IND. And a letter you do not understand is a phone call, not a shelf: ik heb een brief gekregen en ik begrijp hem niet works at every office.

The gemeente

Bevestiging inschrijving (registration confirmation)

Confirms you are registered in the BRP at your address and states your BSN. It arrives within days of your gemeente appointment.

U bent per [datum] ingeschreven in de Basisregistratie Personen op het adres ...
You have been registered in the population register at the address ... as of [date].
Uw burgerservicenummer (BSN) is ...
Your citizen service number is ... Keep it; every institution asks for it.
Controleer of uw gegevens juist zijn.
Check that your details are correct: name spelling, birth date, address with toevoeging.
Do Check every detail now; correcting a wrong birth date later takes weeks. Then activate DigiD with the BSN.
Deadline None, but DigiD activation takes a week, so start it the same day.
The Belastingdienst

Voorlopige aanslag / aanslag inkomstenbelasting (tax assessment)

The blue envelope. A voorlopige aanslag is an estimate, often sent before you have filed; a definitieve aanslag follows your return.

Te betalen bedrag: € ...
Amount you must pay. Terug te ontvangen: € ... means a refund is coming.
Uiterste betaaldatum / betaal vóór ...
Final payment date. The date printed on the letter (dagtekening) is what the deadline runs from.
Betalingskenmerk: 1234 5678 9012 3456
The 16-digit payment reference. Quote it on the transfer or the payment is not matched.
U kunt bezwaar maken binnen zes weken na de dagtekening van deze aanslag.
You may object within six weeks of the date on this assessment.
Do Pay by the date with the reference, or object within six weeks. A voorlopige aanslag that is wrong can be changed online in Mijn Belastingdienst.
Deadline Six weeks from the printed date to object; the payment date is on page one.
Your landlord

Voorstel huurverhoging (rent increase)

Announces a rent increase, usually from 1 July. Must arrive at least two months before the new rent starts and state the old rent, the new rent and the percentage.

Wij stellen voor de huurprijs per 1 juli te verhogen van € ... naar € ... (... %).
We propose to raise the rent from ... to ... (...%) as of 1 July.
Indien u het niet eens bent met de huurverhoging, kunt u vóór de ingangsdatum bezwaar maken.
If you disagree, you may object before the start date.
Do Check the percentage against the year's legal maximum for your type of rental; for regulated and mid-range rentals the Huurcommissie can rule on it.
Deadline Object before the increase takes effect; the Huurcommissie route has its own window.
The IND

Beschikking (decision on your application)

The formal decision on a residence application. Inwilliging means granted; afwijzing means refused; verlenging is an extension.

Uw aanvraag is ingewilligd.
Your application has been granted. A collection appointment for the document follows.
Uw aanvraag is afgewezen.
Your application has been refused. The grounds are listed; read them with an adviser.
U kunt binnen vier weken bezwaar maken tegen dit besluit.
You may object within four weeks of this decision. IND decisions use four weeks, not six.
Wij hebben nog stukken van u nodig: ...
We still need documents from you: ... A herstelverzuim letter gives a short deadline to supply them.
Do Granted: book the biometrics or collection appointment. Refused: the four-week objection window is short; get advice the same week.
Deadline Four weeks to object; a document request usually gives two weeks.
The CJIB

Beschikking verkeersboete (traffic fine)

A speed-camera or parking fine collected by the central agency. Marked with an M for Wet Mulder fines. Addressed to the registered keeper.

Overtreding: ... op ... te ...
The offence, the date and the place. Check the plate and the time.
Boetebedrag: € ... Administratiekosten: € ...
The fine and the admin fee, which is added by law.
Betaal vóór ...
Pay before ... Eight weeks from the letter; the amount rises 50% at the first reminder.
Niet eens? U kunt binnen zes weken na de dagtekening in beroep gaan bij de officier van justitie.
Disagree? You may appeal to the public prosecutor within six weeks of the date on the letter.
Do Pay via the QR code or with the CJIB reference, ask for instalments from 75 euros, or appeal within six weeks (payment is suspended while it is reviewed).
Deadline Six weeks from the printed date to appeal; eight weeks to pay.
Your health insurer

Nota eigen risico (deductible invoice)

Arrives after hospital care, a specialist, blood tests or prescriptions: your share of the cost up to the yearly deductible. GP visits are never on it.

Verrekening eigen risico: € ...
Deductible charged: ... The first slice of covered care each calendar year is yours, up to the annual maximum.
Zorgverlener: ... Behandeldatum: ...
The provider and the treatment date, so you can match it to a visit.
Resterend eigen risico dit jaar: € ...
Deductible remaining this year. Once it reaches zero, covered care costs you nothing more until January.
Do Match every line to a visit you remember; insurers offer instalments if the amount is hard in one go.
Deadline The payment term is on the invoice, usually 30 days.
Your energy supplier

Jaarafrekening (annual energy statement)

Once a year, the supplier compares the monthly advances you paid (termijnbedragen) with what you actually used, and either refunds or bills the difference.

Verbruik: ... kWh elektriciteit, ... m³ gas
Your consumption for the year: electricity in kilowatt-hours, gas in cubic metres.
Betaalde termijnbedragen: € ... Werkelijke kosten: € ...
Advances you paid versus the real cost.
U krijgt terug: € ... / U moet bijbetalen: € ...
You get a refund / you must pay extra.
Nieuw termijnbedrag: € ... per maand
The new monthly advance for the coming year, which you can adjust in the app if it looks wrong.
Do Check the meter readings the statement used against your meter; an estimated reading (geschat) can be corrected.
Deadline Payment within the term printed on it; the new advance starts next month.
Dienst Toeslagen

Beschikking toeslag / terugvordering (allowance decision or reclaim)

Grants, changes or reclaims an allowance (zorgtoeslag, huurtoeslag, kinderopvangtoeslag). A definitieve berekening after the year can end in a repayment.

Uw zorgtoeslag voor 2026 is vastgesteld op € ... per maand.
Your health allowance for 2026 is set at ... a month, based on the income you estimated.
Definitieve berekening: u heeft te veel toeslag ontvangen. U moet € ... terugbetalen.
Final calculation: you received too much. You must repay ... A betalingsregeling (payment plan) can be requested.
Geef wijzigingen in uw inkomen direct door via Mijn toeslagen.
Report income changes immediately in Mijn toeslagen. That sentence is the whole system in one line.
Do Keep the income estimate current all year; a reclaim letter can be spread over 24 months on request.
Deadline Six weeks to object to a decision; repayment terms are on the letter.

The letters that are not here

The DUO student-finance letter, the UWV benefit decision, the SVB kinderbijslag decision and the municipal tax bill follow the same grammar: a decision (beschikking), an amount, a date, and a six-week objection window. The admin hub has a guide for each. If a letter demands money by a link in a text message, it is not a letter; it is a scam, and this guide shows how to tell.