Samir Sabri

TaxDebug for WooCommerce helps store owners debug, understand, trust, and report their taxes – especially when using WooCommerce Tax (automated taxes) or other tax calculation services.
<h4>Key Features</h4>
Deep Tax Visibility 
* See exactly how taxes were calculated for every order 
* View applied tax rates, line-item breakdowns, and calculation formulas 
* Understand which service/plugin produced each tax amount (WooCommerce Core, WooCommerce Tax, TaxJar, Avalara)
Issue Detection Engine 
* Automatically detect common tax problems: 
 * No tax collected where expected 
 * Tax charged in non-taxable regions 
 * Rate mismatches vs reference rates 
 * Missing local (county/city) taxes 
 * Tax changes between cart and checkout 
 * Suspected API errors
Beautiful Dashboard & Reports 
* Modern, responsive admin interface 
* Interactive charts showing tax by state, country, and over time 
* KPI cards for total tax, taxable sales, and effective rates 
* Powerful filtering by date, country, state, tax source, and more
Order Explorer 
* Search and filter all orders with tax data 
* View detailed tax debug information for any order 
* Identify orders with detected issues quickly
Accountant-Friendly Exports 
* Export summary reports by country/state 
* Export detailed order-level tax breakdowns 
* Export detected issues for review 
* CSV format compatible with Excel and accounting software
Safe & Non-Intrusive 
* Does NOT modify how taxes are calculated 
* Only observes, logs, and analyzes tax data 
* Works with any tax calculation method
Feedback & Analytics 
* In-app feedback widget to report false positives/negatives 
* Feature request and success story submissions 
* Privacy-first usage analytics (all data stored locally) 
* Deactivation survey to help improve TaxDebug 
* All feedback stored locally – no external tracking
<h4>Compatibility</h4>
TaxDebug works with: 
* WooCommerce Core tax rates 
* WooCommerce Tax (automated taxes via TaxJar) 
* TaxJar plugin 
* Avalara AvaTax 
* Other tax plugins
<h4>Requirements</h4>
<ul>
<li>WordPress 5.8 or higher</li>
<li>WooCommerce 5.0 or higher</li>
<li>PHP 7.4 or higher</li>
</ul>
<h3>Privacy</h3>
TaxDebug stores order tax data locally in your WordPress database. This includes: 
* Order IDs and dates 
* Customer billing/shipping addresses (country, state, city, postcode only) 
* Order totals and tax amounts 
* Tax calculation details
TaxDebug does NOT: 
* Store payment information 
* Store full customer names or personal details beyond address location
Data retention can be configured in Settings. You can also manually clear all logs at any time.
<h4>Feedback Collection</h4>
TaxDebug collects optional feedback to improve the plugin:
<ul>
<li>In-app feedback: Report false positives, false negatives, feature requests, or success stories</li>
<li>Usage analytics: Anonymous local tracking of which features are used</li>
<li>Deactivation survey: Optional one-question survey when deactivating</li>
</ul>
Local Storage: All feedback is always stored locally in your WordPress database.
Optional Remote Sending: You can opt-in to send anonymous feedback to the developer to help improve TaxDebug. This is disabled by default and must be explicitly enabled in Settings.
<h4>What IS Sent (When Opted-In)</h4>
<ul>
<li>Anonymous store UUID (random identifier, NOT your domain)</li>
<li>Feedback type and message</li>
<li>Your email (only if you voluntarily provide it)</li>
<li>Store country and currency</li>
<li>Active tax plugin (e.g., TaxJar, Avalara)</li>
<li>Plugin, WordPress, and WooCommerce versions</li>
<li>Daily aggregated counts: orders logged, issues detected, features used</li>
</ul>
<h4>What is NEVER Sent</h4>
<ul>
<li>Your site URL or domain name</li>
<li>Customer names, emails, or addresses</li>
<li>Order details, totals, or line items</li>
<li>Tax amounts or financial data</li>
<li>Any personally identifiable information (PII)</li>
</ul>
<h4>How to Disable Remote Sending</h4>
Go to WooCommerce → TaxDebug → Settings and turn off “Send Anonymous Feedback”. You can do this at any time. Local feedback storage will continue to work.
<h3>Developer Notes</h3>
<h4>Hooks & Filters</h4>
TaxDebug provides several hooks for extensibility:
Actions: 
* <code>taxdebug_loaded</code> – Fired when TaxDebug is fully loaded 
* <code>taxdebug_order_logged</code> – Fired when an order is logged (params: log_id, order_id, payload) 
* <code>taxdebug_installed</code> – Fired on plugin installation 
* <code>taxdebug_logs_cleaned_up</code> – Fired when old logs are cleaned up
Filters: 
* <code>taxdebug_order_payload</code> – Filter the order payload before logging 
* <code>taxdebug_detected_issues</code> – Add custom issue detection rules
<h4>REST API Endpoints</h4>
TaxDebug provides a REST API under the <code>taxdebug/v1</code> namespace:
<ul>
<li><code>GET /logs</code> – Get tax logs with filtering</li>
<li><code>GET /logs/{id}</code> – Get single log</li>
<li><code>GET /logs/order/{order_id}</code> – Get log by order ID</li>
<li><code>POST /logs/reanalyze/{order_id}</code> – Re-analyze an order</li>
<li><code>GET /issues</code> – Get detected issues</li>
<li><code>GET /stats/dashboard</code> – Get dashboard statistics</li>
<li><code>GET /stats/chart/time</code> – Get time series chart data</li>
<li><code>GET /stats/chart/state</code> – Get tax by state data</li>
<li><code>GET /stats/chart/country</code> – Get tax by country data</li>
<li><code>GET /export/summary</code> – Export summary CSV</li>
<li><code>GET /export/detailed</code> – Export detailed CSV</li>
<li><code>GET /export/issues</code> – Export issues CSV</li>
</ul>
All endpoints require <code>manage_woocommerce</code> capability.
<h4>Database Tables</h4>
TaxDebug creates two custom tables:
<ul>
<li><code>{prefix}taxdebug_logs</code> – Stores order tax log data</li>
<li><code>{prefix}taxdebug_issues</code> – Stores detected issues</li>
<li><code>{prefix}taxdebug_feedback</code> – Stores user feedback submissions</li>
<li><code>{prefix}taxdebug_analytics</code> – Stores usage analytics</li>
<li><code>{prefix}taxdebug_error_logs</code> – Stores internal error logs</li>
</ul>
<h4>WP-CLI Commands</h4>
(Coming in future versions)

TaxDebug for WooCommerce

A tax debugging and reporting tool for WooCommerce. Debug tax issues, understand calculations, and generate audit-ready reports.

Stormlabs

stormlabs

EU VAT Guard for WooCommerce is a powerful plugin that adds advanced EU VAT number management and validation to your WooCommerce store. It helps you collect, validate, and manage company VAT numbers for your B2B customers, ensuring compliance and a smooth checkout experience.
<h4>Key Features</h4>
<ul>
<li>Company Name & VAT Number Fields – Adds company name and VAT number fields to registration, account, and checkout forms</li>
<li>EU VAT Number Validation – Offline format validation for all EU VAT numbers with optional real-time VIES validation (uses European Commission’s VIES service)</li>
<li>Automatic VAT Exemption – Applies reverse charge VAT exemption for valid B2B transactions between EU member states</li>
<li>VAT Rate Importer – Import current EU VAT rates for all 27 member states, including one reduced rate per country</li>
<li>WooCommerce Integration – VAT numbers are saved to orders and displayed in admin and emails</li>
<li>Block Checkout Support – Full compatibility with WooCommerce’s new block-based checkout</li>
<li>Advanced Customization – Custom labels, messages, and exemption rules</li>
<li>WPML Compatible – Full multilingual support for international stores</li>
<li>PDF Integration – Compatible with WooCommerce PDF Invoices & Packing Slips</li>
</ul>
<h4>VAT Exemption Rules</h4>
VAT exemption is automatically applied when ALL conditions are met: 
* Customer provides a valid EU VAT number 
* VAT number country differs from your store’s base country 
* Shipping method is NOT local pickup 
* Billing and shipping countries match the VAT number country
<h4>Supported Features</h4>
<ul>
<li>Classic WooCommerce checkout</li>
<li>Block-based checkout (Cart & Checkout blocks)</li>
<li>Customer registration and account pages</li>
<li>Admin order management</li>
<li>Email notifications</li>
<li>All 27 EU member states VAT formats</li>
<li>VIES real-time validation (optional)</li>
<li>PDF invoice integration (WooCommerce PDF Invoices & Packing Slips)</li>
<li>Advanced customization options</li>
<li>WPML multilingual support</li>
<li>Custom field labels and messages</li>
</ul>
<h3>External Services</h3>
This plugin optionally uses the European Commission’s VIES (VAT Information Exchange System) service for real-time VAT number validation.
VIES Service Details: 
* Service: European Commission VIES VAT validation service 
* Purpose: Real-time validation of EU VAT numbers to verify their authenticity 
* Data Sent: Only the VAT number (country code and number) that customers enter during checkout, registration, or account updates 
* When Data is Sent: Only when VIES validation is enabled in plugin settings AND a customer enters a VAT number 
* Service URL: https://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl 
* Privacy Policy: https://ec.europa.eu/info/privacy-policy_en 
* Terms of Service: https://ec.europa.eu/taxation_customs/vies/faq.html
Important Notes: 
* VIES validation is completely optional and disabled by default 
* No personal data (names, addresses, emails) is ever sent to VIES 
* Only the VAT number itself is transmitted for validation 
* The plugin works fully without VIES validation using offline format checking 
* You can disable VIES validation at any time in the plugin settings
<h3>Requirements</h3>
<ul>
<li>WordPress 5.0 or higher</li>
<li>WooCommerce 4.0 or higher</li>
<li>PHP 7.2 or higher</li>
<li>SOAP extension (for VIES validation)</li>
</ul>
<h3>Support</h3>
For support, feature requests, or bug reports, please contact us through our website or the WordPress.org support forums.

EU VAT Guard for WooCommerce

Tax exemption and reverse charge VAT. VIES Validation of VAT numbers. Manage EU VAT numbers and company information for WooCommerce customers and B2B.

TaxDebug for WooCommerce vs EU VAT Guard for WooCommerce