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Kazuki Qualified Invoice Number for WooCommerce

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Kazuki Qualified Invoice Number for WooCommerce

by kazukiyamashita80

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Description

Collect Japan qualified invoice registration numbers (T + 13 digits) at WooCommerce checkout.

日本語の説明

このプラグインが向いている方: WooCommerce で 法人・事業者向け に販売していて、購入者から インボイス登録番号（適格請求書発行事業者登録番号） を受け取りたいショップオーナー。

できること:

チェックアウト画面に「インボイス登録番号」の入力欄を追加します。購入者が「T＋13桁」の番号を入力すると、注文に保存されます。管理画面の注文詳細でいつでも確認でき、注文メールにも表示できます。

主な機能:

  • 「T＋13桁」の書式チェックをチェックアウト時に実施
  • クラシックチェックアウト・WooCommerce Checkout Block の両方に対応
  • 注文確認メールへの表示（任意設定）
  • 番号の任意・必須を設定で切り替え

注意: このプラグインは番号の 書式チェックのみ 行います。国税庁の公開システムで実際に登録されているかを確認するには、Kazuki Invoice Registration Verify for WooCommerce を併用してください。

関連プラグイン:

Who this is for: WooCommerce shops in Japan that sell to registered businesses and must record the buyer’s 適格請求書発行事業者登録番号 on orders and invoices.

What it does in plain terms:

When a company buys from your site, they often need their registration number on the transaction record. This plugin adds a field at checkout so customers can enter it. The number is saved on the order, shown in the admin order screen, and can appear in order emails.

Typical workflow:

  1. Install and enable the plugin.
  2. WooCommerce Settings インボイス登録番号 — choose optional or required.
  3. Customer enters their number at checkout (classic or Checkout Block).
  4. You see the number on the order when preparing invoices or bookkeeping.

Features:

  • Checks that the value looks valid (T + 13 digits) before the order is placed
  • Works with WooCommerce Checkout Block
  • Optional: show the number in customer order emails

This plugin does not check whether the number is really registered with the tax office. For automatic verification at checkout, use Kazuki Invoice Registration Verify for WooCommerce. You can also check numbers manually on the NTA public site.

Works well with:

Enjoying this plugin? If it helps your shop, a review on WordPress.org would mean a lot to us — thank you.

  1. Upload the plugin folder to /wp-content/plugins/ or install via WordPress plugins screen.
  2. Activate through the ‘Plugins’ menu.
  3. Ensure WooCommerce is active.
  4. Configure under WooCommerce Settings インボイス登録番号.
What is a qualified invoice registration number?

In Japan, registered invoice issuers have a T + 13 digit ID (適格請求書発行事業者登録番号). B2B buyers often need to give it to suppliers for proper tax invoicing.

Does this verify registration with the tax office?

No. It checks the format only. Use Kazuki Invoice Registration Verify for WooCommerce or the NTA public site for official status.

1.0.11

  • readme に日本語説明セクションを追加（対象者・機能・関連プラグイン）。

1.0.10

  • readme: restore cross-link to Kazuki Invoice Registration Verify for WooCommerce (now published on WordPress.org).

1.0.9

  • readme: remove link to verification plugin until it is published on WordPress.org (avoid broken links).

1.0.8

  • Settings UI and checkout messages: plain-language labels for non-experts.
  • Review request in readme and settings.

1.0.7

  • readme: clearer description for shop owners (who it is for, workflow).

1.0.6

  • readme: cross-links to accounting export and NTA verification plugins.

1.0.5

  • readme tags fix (no spaces). Final naming for WordPress.org review.

1.0.4

  • Rename plugin for WordPress.org guidelines (Kazuki Qualified Invoice Number for WooCommerce).
  • Add Requires Plugins header for WooCommerce.
  • Remove load_plugin_textdomain (WordPress.org language packs).
  • Author: Kazuki Yamashita.

1.0.3

  • WordPress.org plugin check: Tested up to 7.0, text domain, languages folder.

1.0.2

  • Fix checkout completion error on block checkout (email/admin display).
  • Block checkout support via WooCommerce additional checkout fields API.

1.0.1

  • WooCommerce Checkout Block support.

1.0.0

  • Initial release.
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