You can drop in at our office during our visiting hours, from 9.00 am to 12.00 noon at the following address: Victor Hortaplein 11, 1060 Brussels.

Please note ! We recommend making an appointment when you visit the OSS. That way we can guarantee the presence of an expert. Contact us on +32 2 509 90 99.

Read our page about the measures taken by the OSS in the aftermath of this coronacrisis.

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Contact us

Do you have a question, comment or complaint? Get in touch with us by e-mail, phone or mail – or pay us a visit.

By e-mail

Send your questions, comments or documents to overseas@onss.fgov.be

By phone

Overseas Social Security Contact can be reached on +32 2 509 90 99, Monday to Friday from 8.30am to 5.00pm.

(Outside these hours, you can request a callback. Overseas Social Security Contact will return your call the following day.)

By post

Send your questions, comments or documents by post to:

NSSO | Overseas Social Security
Victor Hortaplein 11
1060 Brussels

Our office

You can contact us at our visiting hours, from 9.00am to 12.00pm, at the following address: Victor Hortaplein 11, 1060 Brussels.

We recommend that you make an appointment when you visit the OSS. That way we can guarantee the presence of an expert. Contact us on +32 2 509 90 99.