Missing the deadline: when does a letter's clock actually start?
Published: August 19, 2026 · 3 min read · The Letrin team
Dutch words in this post
Hover over an underlined word in the text (tap it on a phone) and see what it means straight away.
| Word | Meaning |
|---|---|
| dagtekening | the date on the letter · The date periods are counted from, not the day the envelope arrived |
| bezwaartermijn | objection period · The time you have to object to a decision; usually six weeks |
| betalingstermijn | payment period |
| aanmaning | payment reminder · The second letter, usually with costs added |
| termijnoverschrijding | missing the deadline |
| pro forma | protecting the deadline first · A short objection now, with the reasons to follow |
The most expensive detail in Dutch official letters is not printed in large type: the period runs from the date on the letter (dagtekeningthe date on the letter · The date periods are counted from, not the day the envelope arrived), not from the day it reached you.
The difference sounds small. But if the post took two extra days, if the letter sat in a bag for a week, or if you were away, six weeks can turn into four in practice.
The periods you meet most often
| Period | Where |
|---|---|
| 6 weeks | Objecting to a decision (tax, allowances, municipality, IND, UWV) |
| 14 days | Payment on most invoices and first reminders |
| 8 weeks | The first payment window on traffic fines |
| 4 weeks | Reporting a change that affects an allowance |
These vary from one body to another, and the exact day is always in the letter itself. What they share is this: a small step inside the period is far easier than the work of repairing it afterwards.
What happens when the period passes
- In money: reminder costs (aanmaningpayment reminder · The second letter, usually with costs added) are added, then collection costs. On traffic fines the increase is automatic and multiplies the amount.
- In rights: once the objection period has passed, the body does not have to look at your case on its merits. If you have a genuine reason for being late, illness, or a letter that never reached you, write anyway and explain it. That is an exception, not a right.
The moment you realise you will not make it, send a short objection with no grounds (pro formaprotecting the deadline first · A short objection now, with the reasons to follow): the deadline is protected and you add the reasons a few weeks later.
How Letrin catches the dates
When you photograph a letter, Letrin does not only translate the text; it also looks for dates and for the sentences that describe a period. When it finds them it does three things.
- It works out the deadline. A sentence like "within six weeks of the date of this decision" becomes an actual day, and it tells you which day that is.
- It sets reminders. Your phone tells you 7 days before, 2 days before and on the morning of the deadline. Three reminders exist because one of them can be missed.
- It adds the date to your calendar. If you want, the date goes into your phone's calendar, so it is also visible to anyone sharing a family calendar with you.
The reminders are set on your phone. No record saying "this person has this date" is kept on a server; the date stays with you, like the letter.
The paper still has the last word
Explanations are generated with AI, and dates are not the easiest part of a language. Some letters carry three of them (the date of the decision, the date it was sent, the date payment is due) and which one starts the clock is not always spelled out.
So check the deadline Letrin shows against the paper. If you are unsure, one question by email to the body is enough: "From which date are you counting?"
Open the envelope the day it arrives
Open it, photograph it, set the date; it takes five minutes. Most letters in the Netherlands become expensive not because of what they say, but because they waited in a drawer.
In a real dispute, Juridisch Loket and the municipality's sociaal raadslieden are free.