E-invoices for Dolibarr

Frequently asked questions: e-invoices for Dolibarr

Which Dolibarr versions does the module support?

Dolibarr 18 and newer (tested on 18.0 and 24.0 with PHP 8.2). The module installs like any external module: Home → Setup → Modules → Deploy/install external module, or by unpacking the ZIP into htdocs/custom.

What happens to an invoice for a customer without a VAT ID?

An invoice to a consumer (no VAT ID and no tax ID) is not sent through Peppol and the invoice card shows the reason. A customer with a tax ID who is not yet in the Peppol network gets the status Undeliverable: you handed the invoice over to the delivery service and the report to the Financial Administration is filed, but the same invoice still has to reach the customer another way, best as its XML by e-mail.

How does the module handle credit notes, advances and corrections?

A credit note leaves as document 381 with a reference to the original invoice. A proforma invoice is sent after payment as a tax document for the received payment (code 388) and the final invoice deducts it with a negative line referencing that document, as described in the FAQ of the Financial Administration. A replacement invoice leaves as a new invoice referencing the replaced one. The module does not yet send the corrective invoice with code 384, which the Financial Administration is only introducing in the Peppol network.

Does the module also bring received e-invoices into Dolibarr?

Yes, if you switch it on in the module settings. Every received e-invoice becomes a draft supplier invoice with the original XML and PDF attached; the module finds the supplier by VAT ID, company ID or tax ID, or creates one. It never validates the draft automatically; you check and validate it yourself.

What do I need to have set up in Dolibarr?

A VAT ID (or a tax ID if you are not VAT registered) and the full company address, the current Slovak VAT rates 23, 19 and 5 % (Dolibarr ships the old 20 and 10 %), a bank account with an IBAN and Scheduled jobs enabled with a system cron. The module settings page checks each of these and tells you what is missing.

Can an invoice that does not match Dolibarr be sent?

No. An e-invoice is a tax document, so the module only sends one whose amounts match the Dolibarr invoice to the cent. If something does not match (for example an unsupported local tax or another currency), nothing is sent and the reason is shown on the invoice. A handed-over invoice can no longer be returned to draft; corrections go through a credit note and a new invoice.

How much does the integration cost?

The plugin is free. The service costs from €2/month excl. VAT per company ID (IČO) that sends or has the Data archive switched on (the default for new companies): receiving, sending and the archive of originals in the EU. A company with the archive off that only receives pays nothing (up to 1,000 invoices a month). During the voluntary period before the mandate of 1 January 2027 everything is free of charge.

What do I need before installing?

An account on peppol.verteco.digital with an activated company (selecting the provider on the Financial Administration portal via slovensko.sk takes a few minutes and is free). You then download the plugin in the Connections and integrations section with your API key already filled in.