⭐ GG – Checkout International: VAT, Tax ID & Company Fields
The most complete solution to handle billing details for B2C and B2B customers worldwide, fully compatible with both the classic WooCommerce checkout and the new WooCommerce Blocks / Store API checkout.
It automatically manages:
- EU VAT numbers
- Tax ID / National ID for non-EU countries
- Italian Codice Fiscale (individual and company)
- PEC and SDI code for Italy
- Optional validation through the official VIES service
Perfect for stores selling in Italy, across the EU, and worldwide.
✨ Full Compatibility
🟦 WooCommerce Blocks (Store API Checkout)
Designed to work natively with the modern WooCommerce Blocks checkout:
- Dynamic Individual / Company selector or “Request invoice?” checkbox
- Fields are shown/hidden in real time based on customer type and billing country
- Labels and required asterisks update automatically according to your settings
- Server-side validation integrated with the Store API (WP_Error and WC_REST_Exception)
- Uses the official WooCommerce additional checkout fields API
🟧 Classic WooCommerce Checkout
100% compatible with the classic shortcode-based checkout:
- Adds the same fields and the same conditional logic
- Works with any WooCommerce theme
- Uses the same server-side validation rules as the Blocks checkout
- No conflicts with well-coded invoicing plugins or checkout managers
🛠️ Flexible Operating Modes
You can choose how to collect company data from your customers:
1️⃣ Individual / Company Selector
- Displays a dropdown to choose:
- Fields update automatically based on the selection
- Ideal for mixed B2C + B2B stores
2️⃣ “Request invoice?” Checkbox
- Keeps the checkout clean for most customers
- Company fields appear only when the checkbox is ticked
3️⃣ Company-Only Mode (B2B)
- The checkout is always treated as a company checkout
- All company fields are visible by default
Everything is managed from a dedicated settings page.
📋 Available Fields
🌍 For Companies (international)
- Company name
- VAT number (EU VAT)
- Tax ID / National ID (for non-EU or specific tax systems)
🇮🇹 Italy-specific Fields
- Italian Codice Fiscale (individual)
- Italian company fiscal code (separate field, optional or required)
- PEC (optional or required)
- SDI code (optional or required)
Every field can be:
- Shown or hidden
- Marked as required or optional
- Conditionally required for:
- EU companies
- non-EU companies
- Italian customers (billing country = IT)
🎛️ Smart Settings Page
From WooCommerce → GG Checkout International you can:
- choose the mode: Selector, Checkbox, or Company-only
- enable or disable fields: VAT, Tax ID, Codice Fiscale, PEC, SDI
- configure which fields are required for:
- EU companies
- non-EU companies
- Italian individuals and companies
- enable or disable country-based visibility rules
- turn on VIES validation for EU VAT numbers
🔒 Advanced Server-Side Validation
The plugin doesn’t just show fields: it prevents the order from being completed if required fiscal data is missing, according to your rules.
- Dedicated validation for EU and non-EU companies and Italian customers
- Optional validation of EU VAT numbers through VIES
- Clear and user-friendly error messages
- If VIES is unreachable, the checkout is not blocked
⚡ Clean User Experience
- All fiscal fields are grouped into a single, clear section
- They appear only when needed (customer type and country aware)
- Labels automatically display * or “(optional)”
- Zero confusion for the customer
🎁 Immediate Benefits
- More professional and international-ready checkout
- Fewer invoicing errors
- Less post-order support
- More orders completed on the first attempt
- Better compliance for Italy and the European Union
- Works with all major WooCommerce themes (Storefront, Astra, OceanWP, Block Themes, etc.)
🛡 Requirements & Compatibility
- WordPress 6.x or higher
- WooCommerce 7.x, 8.x, 9.x
- PHP 7.4 or higher
- Full support for:
- Classic checkout
- Blocks checkout / Store API
🧑💼 Who is it for?
- International WooCommerce stores (EU + non-EU)
- Shops issuing invoices to both individuals and companies
- Agencies that want to avoid custom development for fiscal logic
- B2B websites with specific tax requirements (PEC, SDI, Codice Fiscale, VIES)
💳 License & Support
The plugin includes:
- 1 year of updates
- 1 year of email support
- GPL3 license (you can customize it as needed)
🚀 Upgrade your WooCommerce checkout today
👉 Click “Buy now” and enable a truly international checkout, ready for individuals and companies in Italy, the EU and worldwide.
❓ FAQ
Does it require configuration?
No. It works out of the box, and you can fine-tune everything from the settings page.
Does it work with WooCommerce Blocks?
Yes, full support for the Blocks checkout / Store API.
Does it work with the classic checkout?
Yes, fully compatible with the classic WooCommerce checkout.
Can I control which fields are visible and required?
Yes: VAT, Tax ID, Codice Fiscale, PEC and SDI can all be configured as visible/required.
Does it support VIES validation?
Yes, optionally. If VIES is down, the order is not blocked.
Can I move the section in the Blocks checkout?
Yes, you can place the fields block wherever you like using the Gutenberg editor.
