TechTrade VAT Check — EU VAT-ID verification (VIES) with audit-proof records

TechTrade VAT Check verifies your vendors' EU VAT IDs against the official VIES system — with name and address matching, the official consultation number and a stored, printable proof document (English, German or Russian). Exactly what you need to invoice B2B vendors net under reverse charge, in any EU country.

A plain "valid" from a free online checker is worthless at audit time. TechTrade VAT Check performs the qualified VIES consultation (Art. 31 of Council Regulation (EU) No 904/2010), stores the consultation number and proof document with the vendor's certification, keeps a clear per-vendor tax status and automatically re-checks every vendor on schedule. German marketplace operators additionally get the BZSt qualified confirmation (§ 18e UStG) built in.

Key features

• Qualified VIES consultation for all EU countries via the official REST API — name/address matching plus the official consultation number as audit evidence.
• Proof document in English, German or Russian — the header automatically carries your shop name and domain.
• Bonus for German taxpayers: BZSt qualified confirmation (§ 18e UStG) built in.
• Swiss UID register (uid.admin.ch) for CHE numbers; optional HMRC lookup for GB.
• Per-vendor tax status as a single source of truth: reverse_charge_ok · vat_required · invalid · non_eu · pending.
• Proof stored with the vendor certification — result, consultation number, request date.
• Automatic re-checks every N months plus one-click "Re-check all due".
• Test check without saving — verify any VAT ID with name/address matching.
• Vendor dashboard notices: vendors see their own VAT status and fix bad entries themselves.
• Audit-safe: own data table, nothing is dropped on uninstall.

Requirements: CS-Cart Multi-Vendor 4.20+, a vendor profile field holding the VAT ID, your own VAT number as requester. PHP SOAP for Swiss checks.

Built and proven in daily use on our own international machinery marketplace. Support comes straight from the developers.