Frequently Asked Questions (FAQ)

The app allows EU business customers to validate their VAT number directly in the Shopify checkout.

When a VAT number is successfully validated:

• VAT exemption is applied immediately

• Checkout totals are updated in real time

• The order is processed correctly under EU reverse-charge rules

No Draft Orders are used.
Everything happens inside checkout.

Yes.

• VAT numbers are validated using the official EU VIES API

• The app follows EU reverse-charge VAT rules

• VAT is only exempted for cross-border EU transactions

• Domestic VAT numbers are validated but not exempted

You add the app via Checkout UI Extensions.

1. Go to Settings → Checkout

2. Click Customize next to your checkout configuration

3. Add the EU VAT Validation app block

4. Enable Allow app to block checkout

5. Save and publish

📘 See the full installation guide for exact placement details.

Placement depends on your checkout layout and product type.

Physical goods

• One-page checkout:
  Delivery section → Delivery address

• Three-page checkout:
  Information page → Contact section → Shipping address

Digital or mixed products

Digital-only checkouts do not show shipping fields.

In this case, add a second app block:

• One-page checkout:
  Payment section → below “Remember me”

• Three-page checkout:
  Information page → Contact section → below Shipping group

Depending on your settings, the VAT number can be found in:

• Order details

• Company location tax details (Shopify B2B)

• Company location notes

• Order metadata used by the app

You can configure where VAT numbers are stored in General Settings.

Common causes:

• The VAT number belongs to the same country as your store

• The customer email in checkout does not match the validated email

• VAT exemption is disabled for that country

• The VAT number is invalid or not VIES-eligible

Only cross-border EU VAT numbers qualify for exemption.

This is expected behavior in some pricing setups.

This usually means:

• Prices are VAT-exclusive

• Or pricing is handled by Shopify Markets or fixed prices

In VAT-exclusive setups:

• VAT removal affects tax calculation, not displayed prices

This is not an error.

Digital products do not require shipping information.

To ensure VAT validation is always available:

• Add an additional EU VAT Validation app block in checkout

• Place it in the Payment or Contact section (depending on layout)

This ensures VAT exemption works for:

• Digital-only carts

• Mixed digital and physical carts

You can use Shopify Flow to tag VAT-exempt orders automatically.

Typical setup:

• Trigger: Order created

• Condition: Order is tax-exempt

• Action: Add order tag (e.g. vat-exempt)

📘 See the full Shopify Flow tutorial for a step-by-step guide.