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How do I declare my Curvo account to the Belgian National Bank?

There are three ways to declare your foreign Curvo account to the Belgian National Bank:
Through a paper form
By email

1. Online

The easiest way is to do it online. Declare your accounts by filling in the form available on the website of the National Bank of Belgium. If you go for the electronic route, remember that you'll either need your identity card (with chip!), your PIN code and a card reader or else access to your itsme account.

We'll use the French speaking form as an example.

Step 1

Start with login into CSAM account using itsme:

Step 2

Then select "contribuable" or "belastingbetaler":

Step 3

Click on "Add new account":

Step 4

Enter the account information. You must first find your account number.

To find your account ID, head on over to "Account" on the app then click on "Profile". You'll see your account ID at the bottom of the screen.

Where to find your Curvo account ID (it's 9 digits for yours that start with 2247)

Then fill in:

Nº du compte / Rekeningnummer: Your account ID
Dénomination / Benaming: Stichting Noordnederlandse Beleggersgiro
Pays / Land: The Netherlands
Période d'imposition / Tijdperk: 2022 (that is, the year you opened your account with Curvo)

Rue / Straat: K.R. Poststraat 100-2
Code postal et localité / Postcode en plaats: 8841 ER Heerenveen
Pays / Land: The Netherlands

Step 5

Insert your preferred language and validate

Step 6

You're all set 🥳 and you can even download the PDF for your archives

2. Through a paper form

You can download, complete and print the form available on the website of the National Bank of Belgium. Here is the version in Dutch.

You have to make sure to date and sign it. Also, you'll need a copy of both sides of your Belgian identity card (or, failing that, of your residence permit issued) to the following address:
Banque nationale de Belgique
Point de contact central
Boulevard de Berlaimont 14
1000 Bruxelles

3. By email

Fill in the paper form, scan it with a copy of both sides of your Belgian ID card and e-mail it to

We'll use the French speaking form as an example.

Step 1

Within the first section, add your identification details:

Step 2

Details to fill in for your foreign account:

Step 2a

If your foreign account doesn't have a BIC code, you can simply add the address of the headquarters:

Step 2b

Repeat for all your foreign accounts. If you have multiple account, make sure to fill in this information.

Step 3

Fill in the annex. Total up your account and documents then sign the document:

That's it! You've just completed your foreign account declaration.

This information is written with the best of our knowledge. Note though that we are not fiscal lawyers, and your situation may differ from what is assumed here. You’re responsible to do your own research or seek external advice.

Updated on: 28/09/2022

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