Title: VIESAC – Free VAT Validation for WooCommerce
Author: viesac
Published: <strong>5 ژوئن 2026</strong>
Last modified: 10 جولای 2026

---

جستجوی افزونه‌ها

![](https://ps.w.org/viesac/assets/banner-772x250.png?rev=3561996)

![](https://ps.w.org/viesac/assets/icon-256x256.png?rev=3561996)

# VIESAC – Free VAT Validation for WooCommerce

 توسط [viesac](https://profiles.wordpress.org/viesac/)

[دانلود](https://downloads.wordpress.org/plugin/viesac.1.0.8.zip)

 * [جزئیات](https://fa.wordpress.org/plugins/viesac/#description)
 * [نقد و بررسی‌ها](https://fa.wordpress.org/plugins/viesac/#reviews)
 *  [نصب](https://fa.wordpress.org/plugins/viesac/#installation)
 * [توسعه](https://fa.wordpress.org/plugins/viesac/#developers)

 [پشتیبانی](https://wordpress.org/support/plugin/viesac/)

## توضیحات

VIESAC adds country-specific VAT validation to WooCommerce checkout. It checks VAT
number formats locally for EU countries, Norway, and Switzerland, validates VAT 
numbers live through the VIESAC API when an API key is configured, and stores VIESAC
certificates for audit-ready B2B orders.

#### Features

 * **Country-specific format checks** – Validate VAT number formats locally without
   an API key
 * **Live VAT validation** – Validate VAT numbers through VIESAC before applying
   0% VAT
 * **15 VIESAC audits per month** – Full audits with VIES certificate storage
 * **Lifetime storage** – VIES certificates stored permanently
 * **EU VIES compliance** – VAT number validation for EU businesses
 * **B2B tax exemption** – Automatic WooCommerce tax removal only after live VAT
   validation succeeds
 * **Certificate download** – PDF certificate available in order details
 * **Company and VAT fields** – Adds company name and VAT number fields to checkout
 * **Checkout blocks support** – Works with WooCommerce Blocks
 * **HPOS compatible** – Compatible with WooCommerce Custom Order Tables

#### Supported countries

All EU member states plus Norway (NO) and Switzerland (CH).

#### Getting started

 1. Install and activate the plugin.
 2. Go to WooCommerce -> VIESAC.
 3. Get your free API key from [https://viesac.eu/app/api](https://viesac.eu/app/api).
 4. Enter the API key and save.

#### Languages

VIESAC is available in 25+ languages: English, German, French, Spanish, Italian,
Polish, Dutch, Romanian, Greek, Czech, Swedish, Hungarian, Portuguese, Bulgarian,
Danish, Finnish, Slovak, Croatian, Latvian, Estonian, Lithuanian, Slovenian, Russian,
Turkish, Arabic, Ukrainian.

### External services

This plugin connects to the VIESAC API to validate VAT numbers, retrieve account
usage information, and optionally create audit records with certificate storage.

It sends data to `https://viesac.eu` only when a store administrator enters an API
key and the plugin performs one of these actions:

 * Live VAT validation via `https://viesac.eu/api/v1/validate`
 * VAT audit creation via `https://viesac.eu/api/v1/audits`
 * Account and usage lookup via `https://viesac.eu/api/v1/account`

Depending on the action, the plugin may send:

 * VAT country code and VAT number
 * Company name
 * Company address
 * Order number
 * Order audit details in XML format for certificate generation

Service provider documentation:

 * Privacy Policy: [https://viesac.eu/privacy-policy](https://viesac.eu/privacy-policy)
 * Terms of Service: [https://viesac.eu/terms-of-service](https://viesac.eu/terms-of-service)

## عکس‌های صفحه

[⌊WooCommerce order page with verified VAT status and VIESAC certificate download
button⌉⌊WooCommerce order page with verified VAT status and VIESAC certificate download
button⌉[

WooCommerce order page with verified VAT status and VIESAC certificate download 
button

[⌊VIESAC configuration page for API key and audit usage⌉⌊VIESAC configuration page
for API key and audit usage⌉[

VIESAC configuration page for API key and audit usage

[⌊WooCommerce checkout with company name, VAT number, and tax-exempt B2B total⌉⌊
WooCommerce checkout with company name, VAT number, and tax-exempt B2B total⌉[

WooCommerce checkout with company name, VAT number, and tax-exempt B2B total

## نصب

 1. Upload the plugin files to `/wp-content/plugins/viesac/`, or install the plugin
    through the WordPress plugins screen directly.
 2. Activate the plugin through the `Plugins` screen in WordPress.
 3. Ensure WooCommerce is installed and active.
 4. Go to WooCommerce -> VIESAC and enter your API key from [https://viesac.eu/app/api](https://viesac.eu/app/api).

## سوالات متداول

### Do I need to pay?

Local VAT format validation is unlimited and works without an API key. Live VAT 
validation starts with 10 checks per hour on the free plan; paid plans include higher
hourly limits. You also get 15 VIESAC audits per month (full audits with certificate
storage) free of charge.

### What is an audit?

An audit is a full validation that creates and stores a VIES certificate for the
order. Checkout format checks are unlimited; live VAT validation uses your plan’s
hourly limit.

### Does it work with WooCommerce Blocks?

Yes. VIESAC is compatible with WooCommerce Blocks checkout.

## نقد و بررسی‌ها

نقد و بررسی‌ای برای این افزونه یافت نشد.

## توسعه دهندگان و همکاران

“VIESAC – Free VAT Validation for WooCommerce” نرم افزار متن باز است. افراد زیر 
در این افزونه مشارکت کرده‌اند.

مشارکت کنندگان

 *   [ viesac ](https://profiles.wordpress.org/viesac/)

“VIESAC – Free VAT Validation for WooCommerce” به 2 زبان ترجمه شده است. با تشکر 
از [مترجمین](https://translate.wordpress.org/projects/wp-plugins/viesac/contributors)
برای همکاری و کمک‌هایشان.

[ترجمه “VIESAC – Free VAT Validation for WooCommerce” به زبان شما.](https://translate.wordpress.org/projects/wp-plugins/viesac)

### علاقه‌ مند به توسعه هستید؟

[کد را مرور کنید](https://plugins.trac.wordpress.org/browser/viesac/)، [مخزن SVN](https://plugins.svn.wordpress.org/viesac/)
را بررسی کنید، یا از طریق [RSS](https://plugins.trac.wordpress.org/log/viesac/?limit=100&mode=stop_on_copy&format=rss)
در [گزارش توسعه](https://plugins.trac.wordpress.org/log/viesac/) مشترک شوید.

## گزارش تغییرات

#### 1.0.8

 * Block checkout submission when a non-empty VAT number has an invalid format or
   VIESAC confirms it is invalid
 * Show the validation error in the standard WooCommerce notice area for classic
   checkout and as a Store API error for Block Checkout
 * Keep VAT optional: customers can remove a VAT number and complete checkout with
   regular VAT

#### 1.0.7

 * Redesign the VIESAC settings account summary to separate live VAT validation 
   limits from monthly audit/certificate usage
 * Show a checkout success state when VIESAC live VAT validation succeeds
 * Show a dedicated country mismatch error when the VAT number prefix does not match
   the selected checkout country
 * Improve WooCommerce-origin VAT checker logs in the VIESAC app
 * Tested with WordPress 7.0 and WooCommerce 10.9.4

#### 1.0.6

 * Show live VAT validation usage for the current hour on the VIESAC settings page
 * Fix billing/shipping country matching for VAT format checks in classic and block
   checkout

#### 1.0.5

 * Require complete B2B checkout fields and live VIESAC API validation before applying
   0% VAT
 * Add country-specific VAT format validation for EU countries, Norway, and Switzerland
 * Show inline VAT errors for invalid formats, invalid VAT numbers, and hourly validation
   limits
 * Show format-only mode and live validation hourly limits on the VIESAC settings
   page

#### 1.0.4

 * Add Norway and Switzerland VAT validation support
 * Add WordPress.org plugin icons, banner, and screenshots
 * Sharpen readme copy around free VAT validation, VAT number checkout fields, B2B
   tax exemption, and certificate storage

#### 1.0.3

 * Clean up WordPress.org scanner issues without changing checkout behavior
 * Add missing plugin translations for Company name fields across all bundled locales
 * Rebuild translation files for verified runtime loading in WordPress
 * Harden admin output escaping and checkout/order input sanitization
 * Normalize plugin file line endings and refine PHPCS-safe request handling in 
   checkout/order flows

#### 1.0.2

 * Add best-effort fallback VAT field injection for custom WooCommerce checkout 
   themes
 * Re-inject VAT field after checkout AJAX updates and DOM re-renders
 * Improve compatibility with custom theme checkout wrappers such as Avada-style
   layouts
 * Keep WooCommerce Blocks behavior separate from classic/custom theme fallback 
   logic

#### 1.0.1

 * Update text domain and WordPress compatibility metadata
 * Add WooCommerce dependency header
 * Document external API service usage for WordPress.org review
 * Clean plugin copy for UTF-8 safe packaging

#### 1.0.0

 * Initial release
 * VAT validation at checkout
 * 15 free VIESAC audits per month
 * VIES certificate download
 * Admin settings page
 * 25+ language translations

## اطلاعات

 *  نگارش **1.0.8**
 *  آخرین به‌روزرسانی **2 روز پیش**
 *  نصب‌های فعال **کمتر از 10**
 *  نگارش وردپرس ** 5.9 یا بالاتر **
 *  آزمایش‌شده تا **7.0.1**
 *  نگارش PHP ** 7.2 یا بالاتر **
 *  زبان‌ها
 * [Czech](https://cs.wordpress.org/plugins/viesac/)، [English (US)](https://wordpress.org/plugins/viesac/)،
   و [Russian](https://ru.wordpress.org/plugins/viesac/).
 *  [به زبان خودتان ترجمه کنید](https://translate.wordpress.org/projects/wp-plugins/viesac)
 * برچسب
 * [b2b](https://fa.wordpress.org/plugins/tags/b2b/)[tax](https://fa.wordpress.org/plugins/tags/tax/)
   [vat](https://fa.wordpress.org/plugins/tags/vat/)[vies](https://fa.wordpress.org/plugins/tags/vies/)
   [woocommerce](https://fa.wordpress.org/plugins/tags/woocommerce/)
 *  [نمایش پیشرفته](https://fa.wordpress.org/plugins/viesac/advanced/)

## امتیازها

هنوز هیچ نقدی ارسال نشده است.

[Your review](https://wordpress.org/support/plugin/viesac/reviews/#new-post)

[مشاهده همه بررسی‌ها](https://wordpress.org/support/plugin/viesac/reviews/)

## مشارکت کنندگان

 *   [ viesac ](https://profiles.wordpress.org/viesac/)

## پشتیبانی

مشکلات حل شده در دو ماه گذشته:

     1 از 1

 [مشاهده انجمن پشتیبانی](https://wordpress.org/support/plugin/viesac/)