The Non Mailing Indicator (NMI)

How does the Non Mailing Indicator work? This article explains how it can help to reduce the amount of mail and visits to your registered address.

If you do not want to be approached by businesses and organisations sending you physical mail or visiting your registered address, you can activate the Non Mailing Indicator or NMI. By doing so, you indicate that you do not want to receive unsolicited mail or sales visits.

Once you have activated the NMI, both your Commercial Register extract and the information on the KVK website will specify this. 

No more unsolicited mail?

There is no guarantee that you will no longer receive any unwanted mail or sales visits. After all, the Commercial Register is a public register and available 24/7. Many organisations are continuously updated on any changes in the Commercial Register, including new registrations. And businesses can use the Commercial Register data to check business relations' data, or to look for potential new customers - you may want to do so yourself.

And as other resources are available as well - yellow pages, websites, etc. - it is impossible to guarantee your address details will never be used for marketing campaigns or other unsolicited mail. 


The protection offered by the NMI is limited to physical mail and door-to-door visits. The NMI does not shield you from offers and ads sent through email, phone, direct messaging or WhatsApp. Once you have registered your company, you will inevitably be approached. Companies and organisations use the public data found in the Commercial Register to do so.

Can I be found easily after activating the NMI?  

Activating the NMI will make your company details less visible. For instance, Google has a policy not to include any companies that have activated the NMI on Google Maps.

How to activate the NMI

Use the (Dutch only) form for switching the non mailing indicator on or off.

When you register in the Commercial Register, you can activate the NMI straightaway. Activating the NMI at a later date usually has little noticeable effect: if you wait until, let us say, some months after your registration, many organisations will already have recorded your details in their files. And so they will remain, unless they get regular database updates from KVK.

So if you want to prevent receiving unwanted mail or visits, you would do well to activate the NMI directly upon registration.

How long before the mailings stop?

As soon as KVK has activated the NMI (within a few working days) and the address database users have processed this, the number of mailings should drop. Address database users are required to process the NMI in their databases.

I am still receiving mail, what do I do?

The user of Commercial Register data is responsible for following the correct procedure when sending mailings. You can compare it to the JA/NEE stickers you see on Dutch mailboxes. If a party does not respect your wish to not receive their mail, you should approach the sender. This is the advice given by the Dutch Data Protection Authority (Autoriteit Persoonsgegevens). You can use one of the sample letters on their website (in Dutch).

Unwanted phone calls

On 1 July 2021 the Bel-me-niet Register (Do-not-call-me register) has closed. Telemarketers are no longer allowed to contact you through unsollicited phone calls. You have to actively opt in to give permission to be called. 

Be careful not to publish all your business details on your website or social media, like Facebook and LinkedIn. Organisations use these sources to find customers.

This article tries to give a realistic perspective on how the NMI works. If you have any questions after reading this article, please contact us.

Last updated on 21 April 2021

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