什么是 EU B2B VAT Reverse-Charge & VIES Validator？
A build-to-order Shopify app that validates EU VAT numbers against VIES at checkout and automatically removes VAT for verified B2B buyers under the reverse-charge mechanism. Built to order by ECOSIRE for Shopify (build-to-order) — indicative price from $99.00 USD; request a quote for a scoped proposal.
产品详细信息以英文显示。翻译即将推出。
示意预览A build-to-order Shopify app that validates EU VAT numbers against VIES at checkout and automatically removes VAT for verified B2B buyers under the reverse-charge mechanism.
核心功能
Real-time EU VAT number validation against the official VIES SOAP service at checkout
Automatic reverse-charge VAT removal once a VAT number is verified as valid
Country-match check — VAT number prefix is validated against the buyer's billing country
Support for both net (ex-VAT) and gross (inc-VAT) storefront pricing models
Per-transaction re-validation so expired or revoked VAT numbers are caught before order placement
Verified status persisted to a customer metafield via the Admin GraphQL API
Automatic customer tagging (e.g. vat-validated, reverse-charge) for segments and reporting
Graceful fallback when VIES is temporarily unavailable — configurable hold or manual-review behaviour
Order and checkout webhooks to keep validation state in sync with Shopify
Audit trail of each VIES lookup (number, country, result, timestamp) for compliance records
OAuth-based install scoped to only the permissions the app needs
Configurable per VAT region so domestic vs cross-border B2B rules apply correctly
按需定制，全程代劳
无需自行搭建——由 ECOSIRE 构建、安装并提供支持的可用应用。
- 1
您下单
以一次性构建价格开始。我们在启动时与您共同确定范围。
- 2
我们构建与安装
ECOSIRE 在您的 Shopify 上构建、配置并安装。
- 3
上线 + 支持
约 2–4 周内上线，并提供上线后的支持期。
关于此产品
Selling across EU borders to VAT-registered businesses means you should zero-rate the sale under the reverse-charge mechanism — but only when the buyer's VAT number is genuinely valid. Get it wrong and you either overcharge B2B customers (and lose the sale) or absorb VAT you can't reclaim. Shopify's native tax engine does not validate VAT numbers against VIES (the EU's VAT Information Exchange System), so most merchants are stuck collecting numbers in a free-text field and hoping.
This is a build-to-order Shopify app, custom-built, installed, and supported by ECOSIRE — not an instant App Store download. We tailor it to your store's tax setup, checkout flow, and B2B segment before handing you a working install.
What it does: At checkout (or in the customer account), the buyer enters their VAT number. The app calls the VIES SOAP service in real time, confirms the number is registered and active, and matches the country to the buyer's billing country. On a valid match it removes VAT via Shopify's tax-override and discount/Functions layer, writes the verified status to a customer metafield, and tags the customer (e.g. vat-validated, reverse-charge) for segmentation and reporting. It supports both net and gross storefront pricing, and re-validates per transaction so an expired or revoked number is caught before the order is placed — never trusting a stale check from months ago.
Built on the Admin GraphQL API with OAuth install, order and checkout webhooks, and metafields so your data stays inside Shopify. We deliver it configured to your tax regions, document the install, and support it after go-live.
你得到什么
- A custom Shopify app built to your store's tax configuration and B2B checkout flow
- OAuth installation onto your live Shopify store by the ECOSIRE team
- VIES validation wiring with country-match and reverse-charge tax-removal logic
- Customer metafield + tagging schema configured for your segmentation needs
- Webhook setup for order/checkout sync and validation-state persistence
- Configuration of net/gross pricing behaviour for your storefront
- Admin documentation covering setup, the tagging scheme, and the VIES fallback policy
- Post-launch support window and a defined update/maintenance path
这是给谁的
EU wholesale & B2B store owner
Sells to VAT-registered businesses across EU member states and needs cross-border sales correctly zero-rated under reverse-charge without manually checking every VAT number.
Finance / tax compliance manager
Owns VAT reporting and wants a verifiable VIES audit trail and exempt-customer tagging so reverse-charge sales reconcile cleanly and survive a tax authority review.
Shopify Plus operations lead
Runs a B2B-enabled storefront and needs VAT validation embedded in the native checkout and customer-account flow, synced via metafields and webhooks rather than bolted on with spreadsheets.
EU B2B VAT Reverse-Charge & VIES Validator 如何比较
| 标准 | 伊科西尔 | 定制建造 | 竞争对手 | 奥杜本机 |
|---|---|---|---|---|
| Real-time VIES VAT number validation | 包含 | 部分支持 | 部分支持 | |
| Automatic reverse-charge VAT removal for verified B2B buyers | 包含 | 部分支持 | 部分支持 | |
| Country-prefix match against billing country | 包含 | 部分支持 | 部分支持 | |
| Per-transaction re-validation (not a one-time check) | 包含 | 部分支持 | 不包括在内 | |
| Tailored to your exact tax regions and net/gross pricing | 包含 | 包含 | 不包括在内 | |
| VIES audit trail and exempt-customer tagging for reporting | 包含 | 部分支持 | 部分支持 | |
| Built, installed and supported for you | 包含 | 不包括在内 | 不包括在内 | |
| No engineering team required on your side | 包含 | 不包括在内 | 包含 |
关于EU B2B VAT Reverse-Charge & VIES Validator的常见问题
Is this an instant App Store download?
No. This is a build-to-order app. ECOSIRE builds it around your store's tax setup and B2B checkout, then installs it on your Shopify store via OAuth. You are buying a custom build and installation, not a self-service download.
How long does delivery take after I order?
Typical delivery is about 1 to 3 weeks from kickoff, depending on your tax-region complexity, whether you use net or gross pricing, and Shopify Plus checkout customizations. We confirm a firm timeline during the scoping call before any build work begins.
What support and updates do I get after go-live?
Every build includes a post-launch support window for fixes and questions, plus a defined maintenance path. Because VIES endpoints and Shopify's APIs change over time, we offer ongoing update support so validation keeps working — the scope and term are agreed in writing before delivery.
How does the reverse-charge VAT removal actually work?
When a buyer enters a VAT number, the app calls the VIES SOAP service in real time, confirms the number is active, and checks the country prefix matches the billing country. On a valid match it removes VAT through Shopify's tax-override/Functions layer, records the result to a customer metafield, and tags the customer. Invalid or mismatched numbers keep VAT applied.
What happens if VIES is temporarily down?
VIES has occasional outages. The app is configured with a fallback policy you choose during scoping — for example, holding the order for manual review or temporarily keeping VAT applied — so you never silently zero-rate an unverified sale. Every lookup is logged so you can reconcile later.
Does it work with Shopify's native checkout and B2B features?
Yes. It is built on the Admin GraphQL API with OAuth, order/checkout webhooks, and customer metafields, so validation lives inside Shopify's native checkout and customer-account flow rather than an external bolt-on. It supports both standard stores and Shopify Plus B2B configurations.
相关模块
申请报价
EU B2B VAT Reverse-Charge & VIES Validator
A build-to-order Shopify app that validates EU VAT numbers against VIES at checkout and automatically removes VAT for verified B2B buyers under the reverse-charge mechanism.
- Real-time EU VAT number validation against the official VIES SOAP service at checkout
- Automatic reverse-charge VAT removal once a VAT number is verified as valid
- Country-match check — VAT number prefix is validated against the buyer's billing country
- Support for both net (ex-VAT) and gross (inc-VAT) storefront pricing models