Title: KPiR
Author: Marcin Pietrzak
Published: <strong>2018年2月18日</strong>
Last modified: 2026年3月24日

---

プラグインを検索

![](https://ps.w.org/kpir/assets/banner-772x250.jpg?rev=3264321)

![](https://ps.w.org/kpir/assets/icon.svg?rev=2538099)

# KPiR

 作者: [Marcin Pietrzak](https://profiles.wordpress.org/iworks/)

[ダウンロード](https://downloads.wordpress.org/plugin/kpir.1.2.0.zip)

 * [詳細](https://ja.wordpress.org/plugins/kpir/#description)
 * [レビュー](https://ja.wordpress.org/plugins/kpir/#reviews)
 *  [インストール](https://ja.wordpress.org/plugins/kpir/#installation)
 * [開発](https://ja.wordpress.org/plugins/kpir/#developers)

 [サポート](https://wordpress.org/support/plugin/kpir/)

## 説明

**KPiR** streamlines small business bookkeeping for entrepreneurs in Poland. It’s
designed for simplicity, compliance, and seamless integration with your WordPress
website.

**Features:**

 * Manage small business bookkeeping tailored to Polish regulations.
 * Generate JPK V7M and JPK-VAT XML reports for Polish tax compliance.
 * Track expenses, assets, and VAT rates, including car-related expenses with customizable
   rates (20%, 75%, 100%).
 * Annual and monthly financial reporting.
 * Input sanitization and validation for data integrity and security.
 * Localization support (Polish translation included).
 * Regular updates for compatibility with the latest WordPress and Polish tax law
   changes.

**Who Is It For?**
 KPiR is perfect for small business owners, freelancers, and 
sole proprietors in Poland who need a straightforward, WordPress-integrated solution
for managing their accounting records and fulfilling local tax obligations.

**Open Source & Development:**
 KPiR is open source and actively maintained, with
contributions from the community and regular updates reflecting changes in Polish
tax regulations. The plugin is available also on [GitHub](https://github.com/iworks/kpir).

## インストール

There are 3 ways to install this plugin:

#### 1. The super easy way

 1. In your Admin, go to menu Plugins > Add
 2. Search for `KPiR`
 3. Click to install
 4. Activate the plugin
 5. A new menu `KPiR` will appear in your Admin

#### 2. The easy way

 1. Download the plugin (.zip file) on the right column of this page
 2. In your Admin, go to menu Plugins > Add
 3. Select button `Upload Plugin`
 4. Upload the .zip file you just downloaded
 5. Activate the plugin
 6. A new menu `KPiR` will appear in your Admin

#### 3. The old and reliable way (FTP)

 1. Upload `kpir` folder to the `/wp-content/plugins/` directory
 2. Activate the plugin through the ‘Plugins’ menu in WordPress
 3. A new menu `KPiR` will appear in your Admin

## 評価

![](https://secure.gravatar.com/avatar/b5f0627ace211ec8294cb849f9ec6b31b286b8eaad378f09bb9fed642224c4b1?
s=60&d=retro&r=g)

### 󠀁[Jest Ok](https://wordpress.org/support/topic/jest-ok-12/)󠁿

 [bamsik001](https://profiles.wordpress.org/bamsik001/) 2021年7月17日

Używałem jak miałem samochód do celów prywatnych i służbowych, daje radę i jest 
proste

 [ 1件のレビューをすべて表示 ](https://wordpress.org/support/plugin/kpir/reviews/)

## 貢献者と開発者

KPiR はオープンソースソフトウェアです。以下の人々がこのプラグインに貢献しています。

貢献者

 *   [ Marcin Pietrzak ](https://profiles.wordpress.org/iworks/)

“KPiR” は1ロケールに翻訳されています。 [翻訳者](https://translate.wordpress.org/projects/wp-plugins/kpir/contributors)
のみなさん、翻訳へのご協力ありがとうございます。

[“KPiR” をあなたの言語に翻訳しましょう。](https://translate.wordpress.org/projects/wp-plugins/kpir)

### 開発に興味がありますか ?

[コードを閲覧](https://plugins.trac.wordpress.org/browser/kpir/)するか、[SVN リポジトリ](https://plugins.svn.wordpress.org/kpir/)
をチェックするか、[開発ログ](https://plugins.trac.wordpress.org/log/kpir/)を [RSS](https://plugins.trac.wordpress.org/log/kpir/?limit=100&mode=stop_on_copy&format=rss)
で購読してみてください。

## 変更履歴

Project maintained on GitHub at [iworks/kpir](https://github.com/iworks/kpir).

#### 1.2.0 – 2026-03-24

 * Added KSeF number to JPK reports.
 * Added JPK V7M (3) support.
 * Added simple VAT inconsistency check.
 * Added ability to chose tax payer type.

#### 1.1.4 – 2026-03-20

 * Massive improvements for `cash pit` feature.
 * Added comprehensive DocBook (PHPDoc) comments to invoice post type class.
 * Improved code documentation with proper parameter and return value documentation.
 * Enhanced method descriptions for better code maintainability.
 * Added @since tags and standardized documentation formatting.

#### 1.1.3 – 2026-02-21

 * Fixed issue with `add_value` when some part of value is empty.
 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 3.0.9.

#### 1.1.2 – 2025-06-25

 * Fixed issue with `use cash pit` option.

#### 1.1.1 – 2025-06-20

 * Added `filter_add_sortable_columns`, `apply_filter_order_date_of_payment`, `get_custom_field_basic_type_name`
   methods to invoice post type.
 * Added sort by payment date.
 * Added `use_cash_pit` property and `action_init_set_options()` method; constructor
   hook adjusted.
 * Code quality improvements and documentation update.
 * Improved code formatting and consistency.
 * Removed `quick_edit` from `row_actions`.
 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 3.0.1.
 * Updated file paths to use `__DIR__` constant for better compatibility.

#### 1.1.0 – 2025-05-08

 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 3.0.0.
 * The cash method of settling income tax has been added. [#1](https://github.com/iworks/kpir/issues/1).

#### 1.0.3 – 2025-03-31

 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 2.9.9.
 * The plugin repository has been moved to GitHub.
 * Missing translation domain names have been added.

#### 1.0.2 – 2025-02-22

 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 2.9.5.
 * Empty vat field has been fixed.

#### 1.0.1 – 2024-03-25

 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 2.8.9.
 * The P_20 field has been temoved from JPK-VAT xml if is empty.

#### 1.0.0 – 2023-06-07

 * The BDO number has been added.

#### 0.1.9 – 2023-02-21

 * The person type for JPK V7M has been changed.

#### 0.1.8 – 2022-02-24

 * Added JPK V7M(2) report.
 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 2.8.1.

#### 0.1.7 – 2022-01-20

 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 2.8.0.

#### 0.1.6 – 2021-05-12

 * Rename directory `vendor` into `includes`.
 * Added VAT rates.
 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 2.6.9.

#### 0.1.5 – 2020-11-24

 * Fixed VAT calculation for a car.

#### 0.1.4 – 2020-11-24

 * Added JPK V7M report.
 * Removed JPK VAT(3) report.

#### 0.1.3 – 2020-01-20

 * Added annually report.

#### 0.1.2 – 2019-11-12

 * The [iWorks Options](https://github.com/iworks/wordpress-options-class) module
   has been updated to 2.6.8.

#### 0.1.1

 * Added new car related count: 20%, 75% and 100% for expenses.

#### 0.1.0

 * Netto expenses count only from expenses.

#### 0.0.9

 * Convert ‘&’ char to entity in output JPK VAT fields.

#### 0.0.8

 * Added few checks to avoid PHP warnings.
 * Added input sanitization and validation for JPK VAT(3) inputs.

#### 0.0.7

 * Added ability to sum two values.
 * Added few checks to avoid PHP warnings.

#### 0.0.6

 * Improved “Asset” type, “Expense” is visible too.

#### 0.0.5

 * Added input month in JPK VAT sanitization.
 * Handle translation.

#### 0.0.4

 * Added input sanitization.
 * Added button to copy “Date of issue” value into “Event date” field.

#### 0.0.3

 * Improved post types labels.

#### 0.0.2

 * Fixed fractional part of money with leading zero for JPK VAT (3).

#### 0.0.1

 * init version

## メタ

 *  バージョン **1.2.0**
 *  最終更新日 **2か月前**
 *  有効インストール数 **10未満**
 *  WordPress バージョン ** 6.0またはそれ以降 **
 *  検証済み最新バージョン: **6.8.5**
 *  PHP バージョン ** 8.0またはそれ以降 **
 *  言語
 * [English (US)](https://wordpress.org/plugins/kpir/)、[Polish](https://pl.wordpress.org/plugins/kpir/).
 *  [プラグインを翻訳](https://translate.wordpress.org/projects/wp-plugins/kpir)
 * タグ
 * [faktura](https://ja.wordpress.org/plugins/tags/faktura/)[jpk](https://ja.wordpress.org/plugins/tags/jpk/)
   [księgowość](https://ja.wordpress.org/plugins/tags/ksiegowosc/)[vat](https://ja.wordpress.org/plugins/tags/vat/)
 *  [詳細を表示](https://ja.wordpress.org/plugins/kpir/advanced/)

## 評価

 5つ星中5つ星

 *  [  1 5-星レビュー     ](https://wordpress.org/support/plugin/kpir/reviews/?filter=5)
 *  [  0 4-星レビュー     ](https://wordpress.org/support/plugin/kpir/reviews/?filter=4)
 *  [  0 3-星レビュー     ](https://wordpress.org/support/plugin/kpir/reviews/?filter=3)
 *  [  0 2-星レビュー     ](https://wordpress.org/support/plugin/kpir/reviews/?filter=2)
 *  [  0 1-星レビュー     ](https://wordpress.org/support/plugin/kpir/reviews/?filter=1)

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

[すべてのレビューを見る](https://wordpress.org/support/plugin/kpir/reviews/)

## 貢献者

 *   [ Marcin Pietrzak ](https://profiles.wordpress.org/iworks/)

## サポート

意見や質問がありますか ?

 [サポートフォーラムを表示](https://wordpress.org/support/plugin/kpir/)

## 寄付

このプラグインが今後も改善できるよう応援しませんか ?

 [ このプラグインに寄付 ](https://ko-fi.com/iworks?utm_source=kpir&utm_medium=readme-donate)