Lightest WooCommerce B2B registration and VAT number plugins
By Raz Technologies · Updated · how lists are defined
As of 2 November 2026, EU VAT Guard for WooCommerce is the lightest of the 7 WooCommerce B2B registration and VAT number plugins on our lab list: it adds the least server time, database queries, memory and front-end assets.
Plugins that add the least server time, database queries, memory and front-end assets in our lab (WooCommerce, HPOS on, 200-product fixture).
| # | Plugin | Overall rank | Rating |
|---|---|---|---|
| 1 | EU VAT Guard for WooCommerce | #8 | 5.0/5 (3 ratings) |
| 2 | Kybernaut IČO DIČ | #2 | 5.0/5 (38 ratings) |
| 3 | Whols – Wholesale Prices and B2B Store Solution for WooCommerce | #5 | 5.0/5 (14 ratings) |
| 4 | EU/UK VAT Validation Manager for WooCommerce | #1 | 4.8/5 (39 ratings) |
| 5 | Custom Fields Account Registration For Woocommerce | #14 | 3.7/5 (6 ratings) |
| 6 | B2BKing — Ultimate WooCommerce B2B and Wholesale Plugin — Wholesale Prices, Bulk Order Form & More | #3 | 4.9/5 (109 ratings) |
| 7 | Build Private Store For WooCommerce | #13 | 5.0/5 (7 ratings) |
FAQ
What is the lightest WooCommerce B2B registration or VAT number plugin?
As of 2 November 2026, EU VAT Guard for WooCommerce is the lightest of the 7 WooCommerce B2B registration and VAT number plugins on our lab list: it adds the least server time, database queries, memory and front-end assets.
How is the “Lightest” list defined?
Plugins that add the least server time, database queries, memory and front-end assets in our lab (WooCommerce, HPOS on, 200-product fixture). It has 7 plugins and is refreshed with the weekly rankings (last on 2 November 2026).
How does this list relate to the overall ranking?
The overall ranking orders all 15 WooCommerce B2B registration and VAT number plugins we track by a 0–100 score; EU/UK VAT Validation Manager for WooCommerce is #1 there as of 2 November 2026. This list filters or re-weights that ranking as described above.