The feature is only available in Finland.

When sending eInvoices via AutoInvoice, you have the possibility to send invoices that are compliant with the European standard (EN16931). The EN standard invoice complies with the Finvoice 3.0 standard and semantic model.

More information can be found from State Treasury's web site.


There are a few restrictions in invoice creation when using the standard, so it is recommended to enable it only to those customers that require that invoices are compliant with the European standard (EN16931).

Tax rates

Invoice should only contain items belonging to one tax category (standard, VAT-exempt or reverse charge). Each of these categories have tax codes that are agreed in cooperation with the tax authorities. For example standard sales gets always code S, and reverse charge AE.

When activating EN standard to your customers, you need to select the default invoicing VAT. This affects the tax category used on customer's invoices.

If the sales is exempted from VAT, you need to select 0% as the default invoicing VAT, select the correct VAT category code for the sales and give a description for it. For reverse charge, the VAT category code is always AE (cannot be manually edited), but you need to give the description for it.

If you need to invoice items belonging to different categories, create separate invoices manually, and change the invoicing default between invoice creation.

Grouped invoices

When EN16931 standard is enabled for a customer, you cannot group multiple projects to one invoice. You need to invoice all projects on their own invoices.

This is due to a requirement that invoice must contain the order number, agreement number, the posting reference or site information, and each invoice may only contain the information of a single order/agreement/reference/site.

Billing customer

When an invoice is created, Severa checks if the standard is enabled for the billing customer. If the customer is changed on the invoice, the check is not done again so the settings come from the original customer.

If you have a project with several billing customers, create the invoice directly to the correct customer to avoid issues with the standard. This can be done from Project settings page, under Billing information.

Enable EN16931 standard

To enable the feature, navigate to Settings > Organization > Company settings > Electronic invoicing, and mark the Enable creating eInvoice using EN16931 standard checkbox. When the feature is enabled in Settings, VAT code handling can be activated for customers.

  1. Navigate to Customer > Customer settings
  2. Fill in eInvoice address and eInvoice operator code
  3. Select the Create eInvoices using EN16931 standard checkbox
  4. Define Taxation information for that specific customer:
    1. Select the invoicing VAT only if it differs from your organization's default.
    2. When 0% or Reverse charge is selected as the default, VAT% cannot be manually changed on project or invoice. You are also required to enter a description that will be shown on the invoice.

After setting the billing information, all new invoices created for the customer will be compliant with the European standard.

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