Yes. You will have to declare that you have a Dutch investment account through Curvo.

As a Curvo customer, we will provide you with detailed instructions when you are filling your tax return and send it to you via email.

According to the Belgian tax authority, if you have a foreign account (such as Curvo) you need to do the following:
Declare it to the BNB
Mention it every year on your tax return

How do you declare?
There are three ways to declare your foreign accounts.

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.

How to fill in the form
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 following info:

To find your account number, head on over to the "invest" section. Put in a fictive amount to invest and then you'll see your account number show up in the communication part:
How to find your Curvo account number (it's 9 digits for yours that start with 2247)



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. Paper format
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 cap.pcc@nbb.be

How to fill in the form
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 doc:



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

Useful links (NL): Nationale Bank van België | Federale Overheidsdienst Financien

Useful links (FR): Banque Nationale de Belgique | Service Public Fédéral Finances
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