Title: Denár for WooCommerce
Author: Roman Kraiger | Pixeler s. r. o.
Published: <strong>October 1, 2026</strong>
Last modified: October 1, 2026

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# Denár for WooCommerce

 By [Roman Kraiger | Pixeler s. r. o.](https://profiles.wordpress.org/pixeler/)

[Download](https://downloads.wordpress.org/plugin/denar-for-woocommerce.0.2.2.zip)

 * [Details](https://wordpress.org/plugins/denar-for-woocommerce/#description)
 * [Reviews](https://wordpress.org/plugins/denar-for-woocommerce/#reviews)
 *  [Installation](https://wordpress.org/plugins/denar-for-woocommerce/#installation)
 * [Development](https://wordpress.org/plugins/denar-for-woocommerce/#developers)

 [Support](https://wordpress.org/support/plugin/denar-for-woocommerce/)

## Description

Connects a WooCommerce shop to [Denár](https://denar.sk/), invoicing and bank
 reconciliation
for the Slovak market. The plugin holds no invoicing logic of its own: numbering,
VAT, PDF, PAY by square QR payments and e-invoicing (Peppol, mandatory in Slovakia
from 2027) happen in Denár, the shop only sends orders and listens to webhooks.

 * **Bank transfer:** a proforma with PAY by square is issued when the order is 
   placed, with the order number as the variable symbol. Once Denár pairs the payment
   from the bank, the order moves to Processing and the invoice is issued from the
   proforma.
 * **Card and payment gateways:** the invoice is issued and marked paid right away.
 * **Cash on delivery:** the invoice is issued when the order is completed.
 * **Refunds:** a credit note to the invoice, for the refunded lines or the refunded
   amount.
 * **Cancelled orders:** an unpaid proforma is cancelled.
 * Coupons become a document discount, shipping and fees are lines; company details(
   IČO, DIČ, IČ DPH) are read from the common `_billing_ic` / `_billing_dic` / `
   _billing_dic_dph` fields; EU reverse charge and export from the px-shop-core 
   company module.
 * Every document is checked against the order total – a document whose total differs(
   rounding of prices with VAT) stays a draft instead of being issued with a wrong
   amount.
 * The order screen lists the documents with a PDF download; “Send to Denár again”
   retries after a fix.
 * Runs in the background (Action Scheduler) with retries – the checkout never waits
   for Denár.
 * Compatible with HPOS and the block checkout.

A Denár account with API access is required – plans Firma and Profi, and the free
trial. Sign up at [denar.sk](https://denar.sk/cennik).

### External services

This plugin connects to the Denár API (`https://api.denar.sk/v1`, operated by
 Pixeler
s. r. o., Slovakia), the invoicing service the shop uses to issue its documents.
Without it the plugin does nothing.

 * When the administrator clicks “Check connection”, the plugin sends the API
    key
   and receives the name and tax identifiers of the connected organization.
 * When an order is to be invoiced, the plugin sends the order data needed on
    an
   invoice: order number, items, prices, taxes, shipping, payment method and the
   customer’s billing details (name, company, company and VAT identification numbers,
   address, e-mail, phone). The shop’s own data is sent under its API key.
 * Denár sends webhooks back to the shop (document paid, cancelled); those
    carry
   document data, not personal data beyond what the shop sent.

Nothing is sent before the administrator enters an API key.

 * Terms of service: https://denar.sk/obchodne-podmienky
 * Privacy policy: https://denar.sk/ochrana-osobnych-udajov

## Installation

 1. Install and activate the plugin (WooCommerce must be active).
 2. In Denár create an API key (Settings -> API keys) with the scopes
     documents and
    partners, read and write.
 3. Paste it into WooCommerce -> Settings -> Denár and click Check connection.
 4. In Denár add a webhook (Settings -> Webhooks) to the URL shown on the
     settings
    screen and paste its secret into the plugin.

Credentials may also be defined in wp-config.php: `DENAR_WC_API_KEY`,
 DENAR_WC_WEBHOOK_SECRET,`
DENAR_WC_API_URL`.

## FAQ

### Does the plugin work without Denár?

No. It is a connector – invoices are issued in Denár.

### How do I get a Denár account?

Sign up at [denar.sk](https://denar.sk/cennik). New accounts start with a free trial
that includes the API; afterwards the plugin needs a plan with API access (Firma
or Profi).

### My prices include VAT. Will the invoice match the order?

Yes. The plugin sends the prices with VAT and Denár works the base out of them, 
so the invoice total is the order total to the cent, coupons included.

### Where are errors logged?

WooCommerce -> Status -> Logs, source “denar”. The API key is never logged.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Denár for WooCommerce” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ Roman Kraiger | Pixeler s. r. o. ](https://profiles.wordpress.org/pixeler/)

“Denár for WooCommerce” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/denar-for-woocommerce/contributors)
for their contributions.

[Translate “Denár for WooCommerce” into your language.](https://translate.wordpress.org/projects/wp-plugins/denar-for-woocommerce)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/denar-for-woocommerce/),
check out the [SVN repository](https://plugins.svn.wordpress.org/denar-for-woocommerce/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/denar-for-woocommerce/)
by [RSS](https://plugins.trac.wordpress.org/log/denar-for-woocommerce/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 0.2.2

 * Readme: Denár sign-up is open; which plans include the API.

#### 0.2.1

 * Every PHP file refuses direct access.
 * Readme: how to get a Denár account, prices with VAT.

#### 0.2.0

 * Documents for orders: proforma for bank transfers, invoice for paid orders (from
   the proforma when there is one), invoice on completion for cash on delivery, 
   credit notes for refunds, cancelling unpaid proformas.
 * Order box with the documents and PDF download, order action “Send to Denár again”.
 * Shops with prices including VAT send the prices with VAT (Denár prices_include_vat),
   so the document total is exactly the order total, coupons included.
 * Totals check – a document that does not match the order stays a draft; a retry
   updates the draft with the current order.

#### 0.1.2

 * Ready for wordpress.org: separate build without the GitHub updater, External 
   services section in the readme.
 * Plugin name back to “Denár for WooCommerce” (trademark rules); Slovak “Denár 
   pre WooCommerce” comes from the translation.

#### 0.1.1

 * Icon and banner shown in Dashboard -> Updates and in the plugin details.
 * Plugin name in Slovak: Denár pre WooCommerce.
 * Tested up to WordPress 7.1.

#### 0.1.0

 * Plugin skeleton: settings, connection check, webhook endpoint with signature 
   verification, updates from GitHub releases.

## Meta

 *  Version **0.2.2**
 *  Last updated **1 day ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.5 or higher **
 *  Tested up to **7.1.2**
 *  PHP version ** 8.1 or higher **
 *  Languages
 * [English (US)](https://wordpress.org/plugins/denar-for-woocommerce/) and [Slovak](https://sk.wordpress.org/plugins/denar-for-woocommerce/).
 *  [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/denar-for-woocommerce)
 * Tags
 * [e-invoice](https://wordpress.org/plugins/tags/e-invoice/)[invoice](https://wordpress.org/plugins/tags/invoice/)
   [invoicing](https://wordpress.org/plugins/tags/invoicing/)[pay by square](https://wordpress.org/plugins/tags/pay-by-square/)
   [slovakia](https://wordpress.org/plugins/tags/slovakia/)
 *  [Advanced View](https://wordpress.org/plugins/denar-for-woocommerce/advanced/)

## Ratings

No reviews have been submitted yet.

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

[See all reviews](https://wordpress.org/support/plugin/denar-for-woocommerce/reviews/)

## Contributors

 *   [ Roman Kraiger | Pixeler s. r. o. ](https://profiles.wordpress.org/pixeler/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/denar-for-woocommerce/)