Title: KPiR Author: Marcin Pietrzak Published: 18 Fevrer 2018 Last modified: 24 Marz 2026 --- Search plugins ![](https://ps.w.org/kpir/assets/banner-772x250.jpg?rev=3264321) ![](https://ps.w.org/kpir/assets/icon.svg?rev=2538099) # KPiR By [Marcin Pietrzak](https://profiles.wordpress.org/iworks/) [Download](https://downloads.wordpress.org/plugin/kpir.1.2.0.zip) * [Details](https://lmo.wordpress.org/plugins/kpir/#description) * [Reviews](https://lmo.wordpress.org/plugins/kpir/#reviews) * [Installation](https://lmo.wordpress.org/plugins/kpir/#installation) * [Development](https://lmo.wordpress.org/plugins/kpir/#developers) [Support](https://wordpress.org/support/plugin/kpir/) ## Description **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). ## Installation 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 ## Reviews ![](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/) 17 Luj 2021 Używałem jak miałem samochód do celów prywatnych i służbowych, daje radę i jest proste [ Read all 1 review ](https://wordpress.org/support/plugin/kpir/reviews/) ## Contributors & Developers “KPiR” is open source software. The following people have contributed to this plugin. Contributors * [ Marcin Pietrzak ](https://profiles.wordpress.org/iworks/) “KPiR” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/kpir/contributors) for their contributions. [Translate “KPiR” into your language.](https://translate.wordpress.org/projects/wp-plugins/kpir) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/kpir/), check out the [SVN repository](https://plugins.svn.wordpress.org/kpir/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/kpir/) by [RSS](https://plugins.trac.wordpress.org/log/kpir/?limit=100&mode=stop_on_copy&format=rss). ## Changelog 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 ## Meta * Version **1.2.0** * Last updated **2 weeks ago** * Active installations **Fewer than 10** * WordPress version ** 6.0 or higher ** * Tested up to **6.8.5** * PHP version ** 8.0 or higher ** * Languages * [English (US)](https://wordpress.org/plugins/kpir/) and [Polish](https://pl.wordpress.org/plugins/kpir/). * [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/kpir) * Tags * [faktura](https://lmo.wordpress.org/plugins/tags/faktura/)[jpk](https://lmo.wordpress.org/plugins/tags/jpk/) [księgowość](https://lmo.wordpress.org/plugins/tags/ksiegowosc/)[vat](https://lmo.wordpress.org/plugins/tags/vat/) * [Advanced View](https://lmo.wordpress.org/plugins/kpir/advanced/) ## Ratings 5 out of 5 stars. * [ 1 5-star review ](https://wordpress.org/support/plugin/kpir/reviews/?filter=5) * [ 0 4-star reviews ](https://wordpress.org/support/plugin/kpir/reviews/?filter=4) * [ 0 3-star reviews ](https://wordpress.org/support/plugin/kpir/reviews/?filter=3) * [ 0 2-star reviews ](https://wordpress.org/support/plugin/kpir/reviews/?filter=2) * [ 0 1-star reviews ](https://wordpress.org/support/plugin/kpir/reviews/?filter=1) [Add my review](https://wordpress.org/support/plugin/kpir/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/kpir/reviews/) ## Contributors * [ Marcin Pietrzak ](https://profiles.wordpress.org/iworks/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/kpir/) ## Donate Would you like to support the advancement of this plugin? [ Donate to this plugin ](https://ko-fi.com/iworks?utm_source=kpir&utm_medium=readme-donate)