Add a configurable tax identification number (TIN) field to WooCommerce, designed for invoicing, tax compliance, or B2B transactions worldwide
As of April 2026, ZeroV99 Tax Number is a WordPress tax id plugin with 0 active installations and a 0/5 rating0. It has been downloaded 420 times in total. Requires WordPress 5.6+ and PHP 7.4+. Available on WordPress.org since 2025. Top alternative: NIP Field for WooCommerce.
ZeroV99 Tax Number is a WooCommerce extension that seamlessly integrates a Tax Identification Number (TIN) field into your store’s checkout process and billing addresses.
Designed for businesses that need to collect valid tax IDs (such as NIF, CIF, VAT, or similar) for invoicing, tax compliance, or B2B transactions.
Tax Number Field Integration
✔ Adds a configurable tax identification field (TIN) to the WooCommerce checkout.
✔ Displays the field in billing addresses (customer account + admin order view).
✔ Compatible with both individuals and businesses (B2B/B2C).
Data Management & Compliance
✔ Stores tax IDs as order meta and user meta for invoicing and compliance.
✔ Includes a full uninstall script (removes all plugin data: meta, options).
Flexibility & Compatibil…
| WordPress | 5.6+ requiredTested up to 6.9.4 |
| PHP | 7.4+ required |
| Dependencies | woocommerce |
+= 1.0.3 =
+* Improvement: Compatibility with WooCommerce 10.3.6 and WordPress 6.9
+= 1.0.2 =
+* Improvement: Compatibility with WooCommerce 10.2.2
+= 1.0.1 =
+* Improvement: Compatibility with WooCommerce 9.9.5
Initial release. Added Tax Number field to checkout and billing. Integrated with order metadata, admin and user views. Full uninstall support.
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.