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2 June 20261 min readUpdated 16 Jun 2026
When (and how) to register for VAT in Bulgaria
Voluntary vs mandatory VAT registration, the VIES system, and what changes once you cross the €50,000 threshold.
VAT registration in Bulgaria is not always required at incorporation.
Mandatory registration kicks in at BGN 100,000 (~€51,000) in taxable turnover over 12 months, but many B2B founders register voluntarily to claim input VAT.
We walk through the process, the documents required, and how VIES enables cross-border EU sales.
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