POP – European e-invoicing compliance for e-commerce
European e-invoicing for WordPress and WooCommerce: XML/PDF invoices, fiscal data, SdI, PEPPOL, KSeF and ZUGFeRD.
4.9
(15 ratings)Will this break my store?
What the WordPress.org registry says about keeping POP – European e-invoicing compliance for e-commerce running.
Tested to 7.0.2
Tested against the WordPress branch in use today.4 days ago
At least 14.2 releases a year since launch. WordPress.org only lists versions still available for download, so the real number may be higher.7.4
Your host must be running at least this version.4.6
4
Maintenance & trust
Scored on how POP – European e-invoicing compliance for e-commerce is looked after — not on how many stores run it.
97
out of 100Maintenance
35 / 35WordPress compatibility
20 / 20Support responsiveness
Not enough dataMerchant satisfaction
13 / 15Listing transparency
10 / 10Ratings
4.9
15 ratingsComplete European e-invoicing system for WordPress and WooCommerce: generate XML and PDF invoices, collect fiscal data, and connect your store to PEPPOL, KSeF, SdI and ZUGFeRD workflows.
POP helps European e-commerce teams automate invoice generation, fiscal checkout fields, document downloads, credit notes and supported network submissions from one WordPress workflow. A complete e-invoicing plugin for WordPress and WooCommerce, available with free and paid plans.
Who POP is built for
- Freelancers and small businesses that need reliable XML and PDF invoices without manual document handling
- Growing e-commerce owners selling across European markets with different fiscal data requirements
- Accountants, agencies and developers managing invoicing workflows for multiple WordPress stores
- Enterprise stores that need predictable API credit usage and a structured path toward country-specific e-invoicing workflows
Core features
- Automatic electronic invoice generation in XML format for completed orders
- Branded PDF invoice generation with custom logo and footer text
- Manual PDF and XML download from the order and document management screens
- Credit note generation in XML and PDF format, where supported by the selected plan and workflow
- Fiscal receipt support, where supported by the configured country and integration
- Custom invoice numbering with prefix, suffix, digit length and yearly reset
- Progressive numbering for invoices, credit notes and receipts
- Checkout fields for VAT number, tax ID, destination code, PEPPOL ID and other workflow-specific fiscal data
- VAT number and tax ID validation at checkout, where supported
- Tax regime, VAT treatment, exemption and reverse-charge configuration
- Automatic blocking of zero-total invoices
- Option to exclude zero-value line items from invoices
- Invoice search and filters by date, type, order status, invoice number and order ID
- Automatic PDF invoice email delivery
- HTML invoice display for customer-facing workflows
- HPOS-ready WooCommerce invoice and document management
- No limit on the number of WordPress installations and supported integrations
Supported transmission networks
- PEPPOL for supported European B2B interoperability workflows, where enabled
- KSeF for structured Polish e-invoicing workflows, where enabled
- SdI for direct transmission of structured XML invoices, where enabled
- ZUGFeRD / Factur-X for supported German hybrid PDF/XML document workflows, where enabled
POP supports B2B e-invoicing use cases. B2G use cases are not currently supported.
Integrations
POP connects WordPress invoicing workflows with supported e-commerce platforms, membership systems, automation tools, national networks and document providers.
- WooCommerce / WooCommerce Subscriptions / WooCommerce HPOS
- Paid Memberships Pro / Paid Member Subscriptions by Cozmoslabs
- Zoho / Aruba / Fatture in Cloud / PEC [Interchange System]
- Make / Zapier / Webhook automations
- n8n
- POP API, integrations and direct network connectors
POP supports WooCommerce, WooCommerce Subscriptions, Paid Memberships Pro and other WordPress invoicing workflows. It is also available for Shopify: https://apps.shopify.com/pop-european-invoicing
AI and LLM features
- MCP-ready: connect compatible AI assistants to POP invoicing capabilities
- Exposes WordPress Abilities for automation-aware WordPress workflows
- WP-CLI commands (
wp popapi invoice search|get|xml|pdf) for agentic operations, scripted checks and developer automation - API-first design for AI-assisted invoice creation, status checks and document routing
Supported countries and workflows
POP supports selected European e-invoicing workflows depending on the country, endpoint, selected plan and configured integration.
- Germany: PEPPOL and ZUGFeRD-oriented document workflows where supported by the configured endpoint
- France: PEPPOL-based electronic invoicing workflows where supported by the configured endpoint
- United Kingdom: PEPPOL-based electronic invoicing workflows where supported by the configured endpoint
- Italy and San Marino: structured XML invoice generation, SdI transmission starting from the Basic plan, and electronic signature or compliant archiving where enabled by the selected plan and workflow
- Netherlands: PEPPOL-based electronic invoicing workflows where supported by the configured endpoint
- Poland: KSeF structured e-invoicing workflows, including XML transmission to KSeF starting from the Basic plan
- Belgium: structured B2B e-invoicing workflows, including PEPPOL transmission where enabled
Belgium introduced mandatory structured B2B e-invoicing for domestic transactions between VAT-registered businesses from January 1st, 2026. KSeF adoption in Poland is being phased in by taxpayer category. Regulatory obligations, timelines and accepted channels vary by jurisdiction, business type and transaction type; users remain responsible for verifying the requirements that apply to their specific case.
Planned countries
POP is expanding its coverage roadmap for additional markets, including UAE, Slovakia, Croatia, Spain, Romania, Hungary and Greece.
Supported document formats
- Structured XML e-invoices, including UBL where applicable
- PDF invoice copies as human-readable representations
- XML and PDF credit notes, where supported by the selected workflow and plan
- Fiscal receipts, where supported by the configured workflow
- ZUGFeRD document bundles for supported German workflows
API credits and plans
POP is available in five plans: Free, Basic, Growth, Pro and Enterprise. The Free plan includes 20 API credits per month.
A credit is the unit used to measure credit-consuming API operations, such as generating or validating XML, submitting a document to a supported network, applying an electronic signature or activating compliant archiving when enabled. Credit consumption depends on the operation performed, selected plan, country and workflow.
For paid features, visit: https://popapi.io/pricing/.
Supported payment methods
- Cash
- Bank Transfer
- Check
- Payment Cards
- SEPA Direct Debit
Compatibility
POP is compatible with the latest versions of WordPress and WooCommerce:
- WooCommerce: up to version 9.x.x; HPOS supported starting from WooCommerce 9.x.x
- PHP: 7.4 or higher
- WordPress: 4.6 or higher
For HPOS and optimal performance, we recommend using WordPress 6.x.x and WooCommerce 9.x.x and up.
Why POP
E-commerce invoicing is becoming more structured, more local and more connected to national systems. A WooCommerce store may need to collect the right fiscal data at checkout, generate XML invoices, submit documents through SdI, PEPPOL or KSeF, manage credit notes and keep invoice files available for accounting or customer support.
POP was created to make European e-invoicing easier for e-commerce teams: less manual work, fewer disconnected tools and a clearer path from order data to structured invoice documents.
We can’t make compliance sexy, only easier.
Contributions
“POP – European electronic invoicing for e-commerce (ex-WooPop)” is open source software.
Contribute to its development to continuously improve the plugin!
Requirements
PHP: >= 7.4
WordPress: >= 4.6
Yes. POP offers a Free plan that includes 20 API credits per month.
A credit is the unit used to measure credit-consuming API operations. Some plugin features are included without credit consumption, while operations such as XML generation, transmission, electronic signature or archiving may consume credits depending on the configured workflow.
To unlock more credits and advanced compliance features, you can activate a paid plan.
POP is an e-invoicing compliance product. A single invoice may involve multiple compliance actions, such as:
- Generating and validating XML
- Submitting XML to a supported network such as SdI, PEPPOL or KSeF
- Applying an electronic signature, if enabled
- Activating compliant archiving, if enabled
Each credit-consuming operation uses API credits according to the selected plan and configured workflow.
Yes. Starting from the Basic plan, POP can integrate with supported networks such as SdI, PEPPOL and KSeF, automating the transmission of structured XML invoices directly from your e-commerce workflow.
Available networks depend on the country, endpoint, selected plan and configured integration.
Yes. You can customize the PDF invoice template by adding your company logo and custom footer text.
You can also configure invoice prefix, suffix and progressive numbering.
Yes. POP supports EU and international customers and can route structured XML through supported networks.
Regulatory requirements may vary by jurisdiction, transaction type and business case. Users should verify the specific obligations that apply to them.
Yes. POP supports credit note generation where enabled by the selected plan, country and workflow.
This answer applies to the WordPress open source version of POP.
- Free plan: the service stops when credits are exhausted.
- Paid plans: overquota is allowed. Extra API operations are charged according to your plan’s overquota rate.
You can upgrade your plan at any time to increase your monthly credit quota.
Please note that credit enforcement rules may differ on non-open-source platforms.
Yes. POP can be used for XML invoice generation and validation without network submission.
Network submission, digital signature and compliant archiving are optional capabilities depending on your workflow, selected plan and country configuration.
Yes. For support requests, you can contact us directly through the support link in the plugin or open a ticket from our official website.
Plugin details
Tags on WordPress.org