Official contact details for Belastingdienst / Dienst Toeslagen and how to file a complaint or report — verified and dated.
Bezwaar form by POST (not email). 6 weeks. Klacht: Postbus 4550, 6401 JC Heerlen. Tel 0800-0543.
Source: belastingdienst.nl · verified 2026-05-29
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