內容簡介
VIESAC 是一款專為 WooCommerce 設計的免費增值稅（VAT）驗證外掛，能夠在結帳時針對特定國家進行 VAT 號碼格式檢查，並提供即時驗證服務，確保 B2B 訂單的合規性。
【主要功能】
• 國家特定格式檢查
• 即時 VAT 驗證
• 英國 VAT 檢查透過 HMRC
• 清晰的計畫使用情況
• 存儲證明的允許
• 終身存儲 VIES 證書
外掛標籤
開發者團隊
② 後台搜尋「VIESAC – Free VAT Validation for WooCommerce」→ 直接安裝（推薦）
原文外掛簡介
VIESAC adds country-specific VAT validation to WooCommerce checkout. It checks VAT number formats locally for EU countries, the United Kingdom, Norway, and Switzerland. With a VIESAC API key, live checks use EU VIES for EU and Northern Ireland (XI) VAT numbers and the HMRC VAT API for Great Britain (GB). Eligible orders receive stored compliance proof for audit-ready B2B records.
Features
Country-specific format checks – Validate VAT number formats locally without an API key
Live VAT validation – Validate VAT numbers through VIESAC before applying 0% VAT
UK VAT checks via HMRC – Validate Great Britain (GB) VAT numbers through the HMRC VAT API
Clear plan usage – See monthly VAT checks, hourly live-check capacity, and stored-proof usage separately
Stored proof allowance – Full audit records and VIES certificates use a separate plan allowance
Status without proof – When the stored-proof allowance is exhausted, orders keep their VALID/INVALID status and clearly show that no proof was stored
Lifetime storage – VIES certificates stored permanently
EU VIES compliance – VAT number validation for EU businesses
B2B tax exemption – Automatic WooCommerce tax removal only after live VAT validation succeeds
Certificate download – PDF certificate available in order details
Company and VAT fields – Adds company name and VAT number fields to checkout
Checkout blocks support – Works with WooCommerce Blocks
HPOS compatible – Compatible with WooCommerce Custom Order Tables
Multilingual compatible – Works with WPML, Polylang, TranslatePress, and standard WordPress language packs
VAT number validation by country
VIESAC includes country-specific VAT number format validation for every jurisdiction below. Live validation uses EU VIES for EU member states and Northern Ireland, and the HMRC VAT API for Great Britain.
Austria (AT) – Austrian VAT numbers
Belgium (BE) – Belgian VAT numbers
Bulgaria (BG) – Bulgarian VAT numbers
Croatia (HR) – Croatian VAT numbers
Cyprus (CY) – Cypriot VAT numbers
Czechia (CZ) – Czech VAT numbers
Denmark (DK) – Danish VAT numbers
Estonia (EE) – Estonian VAT numbers
Finland (FI) – Finnish VAT numbers
France (FR) – French VAT numbers
Germany (DE) – German VAT numbers
Greece (EL/GR) – Greek VAT numbers
Hungary (HU) – Hungarian VAT numbers
Ireland (IE) – Irish VAT numbers
Italy (IT) – Italian VAT numbers
Latvia (LV) – Latvian VAT numbers
Lithuania (LT) – Lithuanian VAT numbers
Luxembourg (LU) – Luxembourg VAT numbers
Malta (MT) – Maltese VAT numbers
Netherlands (NL) – Dutch VAT numbers
Poland (PL) – Polish VAT numbers
Portugal (PT) – Portuguese VAT numbers
Romania (RO) – Romanian VAT numbers
Slovakia (SK) – Slovak VAT numbers
Slovenia (SI) – Slovenian VAT numbers
Spain (ES) – Spanish VAT numbers
Sweden (SE) – Swedish VAT numbers
Northern Ireland (XI) – Northern Irish VAT numbers through EU VIES
Great Britain (GB) – UK VAT numbers through HMRC for England, Scotland, and Wales
Norway (NO) – Norwegian VAT number format validation
Switzerland (CH/CHE) – Swiss VAT number format validation
Getting started
Install and activate the plugin.
Go to WooCommerce -> VIESAC.
Get your free API key from https://viesac.eu/app/api.
Enter the API key and save.
Languages
VIESAC is available in 25+ languages: English, Norwegian Bokmål, German, French, Spanish, Italian, Polish, Dutch, Romanian, Greek, Czech, Swedish, Hungarian, Portuguese, Bulgarian, Danish, Finnish, Slovak, Croatian, Latvian, Estonian, Lithuanian, Slovenian, Russian, Turkish, Arabic, Ukrainian.
Multilingual compatibility
VIESAC uses standard WordPress gettext for its interface and VAT validation messages, so it works with WordPress language packs and the Gettext translation tools in WPML, Polylang, and TranslatePress.
Custom VAT field label and VAT field placeholder values are supported too:
WPML: translate them in WPML -> String Translation after saving the VIESAC settings.
Polylang: translate them in Languages -> String translations after saving the VIESAC settings.
TranslatePress: translate them as regular strings in its translation editor after visiting checkout in the target language.
External services
This plugin connects to the VIESAC API to validate VAT numbers, retrieve account usage information, and optionally create audit records with certificate storage.
It sends data to https://viesac.eu only when a store administrator enters an API key and the plugin performs one of these actions:
Live VAT validation via https://viesac.eu/api/v1/validate
VAT audit creation via https://viesac.eu/api/v1/audits
Account and usage lookup via https://viesac.eu/api/v1/account
Depending on the action, the plugin may send:
VAT country code and VAT number
Company name
Company address
Order number
Order audit details in XML format for certificate generation
Service provider documentation:
Privacy Policy: https://viesac.eu/privacy-policy
Terms of Service: https://viesac.eu/terms-of-service
