2 minute read

What is a Core Invoice Usage Specification (CIUS)

European e-invoicing norm EN 16931-1

The European e-invoicing norm EN 16931-1 was developed by the EU member states in accordance with the EU directive 2014/55/EG. The norm EN 16931-1 represents a semantic data model of an invoice’s core elements. This means that the requirements for the most important elements of an invoice are defined in a syntax-independent form. In other words, the norm EN 16931-1 is essentially a PDF document, in which the invoice requirements are described in a readable language and independently from the syntax.

In addition you will find conversions in the technical syntaxes, based on UBL (Universal Business Language) and CII (Cross Industry Invoice).

Philip Helger, who co-wrote the European norm, offers a good overview of the components of the EN 16931 on his website. Unfortunately the norm itself is not available publicly, but needs to be purchased.

Core invoice usage specification

The semantic data model EN 16931-1 can include more data elements and definitions than required in certain situations or applications. Furthermore, there is often a requirement, where some elements of the norm are not optional but mandatory.

White Paper - 7 Mistakes EDI Solution Buyers Make

This is where Core Invoice Usage Specification (CIUS) is used to further define this invoicing norm base.

Any member state of the EU or user group can create a CIUS. You can find a list of the current CIUS definitions at the following link. This community list is maintained on a voluntary basis, therefore it is not guaranteed to be completely accurate.

A CIUS example

The Republic of Austria has defined their own CIUS for e-invoices sent to the Austrian authorities. This CIUS is called CIUS-AT-NAT Austrian National Core Invoice Usage Specification and limits the extent of both EU invoice syntaxes UBL and CII.

Those looking for information on how to create and process UBL documents with attachments in SAP can find our article on this here.


Example of an Austrian CIUS
Example of an Austrian CIUS

You can access the Austrian CIUS at the following link.

Do you have any questions?

Do you still have questions about e-invoices? Feel free to contact us, we would love to help you!

 

SAP ERP and SAP S/4HANA are the trademarks or registered trademarks of SAP SE or its affiliates in Germany and in several other countries. 

Subjects

most read

Keep on reading

2 minute read

New FatturaPA Specifications Introduced

New FatturaPA specifications (version 1.7.1) will be available from 1 October 2022. See what the changes are and what this means for you.

5 minute read

E-invoicing and Peppol in Japan

E-invoicing in Japan via Peppol will soon become the norm. In this article we explore the recent developments and what they mean for you.

2 minute read

EU Commission passes new directive on mandatory use of Peppol CTC

The EU has passed a new directive, making use of Peppol CTC mandatory for all national e-invoicing initiatives from 1 Oct 2022.

7 minute read

B2G and B2B E-invoicing in Poland at a Glance

The VAT gap has been a topic of particular interest for Polish authorities in recent years. In this article we explore the B2G and B2B invoicing regulations they are using...

5 minute read

B2B E-invoicing in Poland - Key Facts and Deadlines

Updated on an ongoing basis, this article covers all the relevant details and dates concerning B2B electronic invoicing in Poland.

5 minute read

B2B E-invoicing in France - Key Facts and Deadlines

Updated on an ongoing basis, this article covers all the relevant details and dates concerning B2B electronic invoicing in France.

5 minute read

B2G and B2B E-invoicing in France

France intends to go further than others in terms of mandatory e-invoicing across B2G and B2B sectors. This article offers a helpful overview.

4 minute read

Peppol in Singapore

Looking to exchange documents with partners in accordance with Singapore's Peppol regulations? Learn more about Peppol in Singapore here!

8 minute read

Sistema di Interscambio (SdI) Reporting to Replace Esterometro Declarations in 2022

From 2022 all Italian businesses must use Sistema di Interscambio (SdI) instead of Esterometro declarations for cross-border tax reporting.

4 minute read

What is a Peppol Access Point?... and other Peppol connection FAQs

What is a Peppol Access Point, why do you need one, how do you find one... and other key Peppol connection questions answered.

3 minute read

ecosio at The E-invoicing Exchange Summit Vienna

ecosio will be exhibiting at the 2021 E-invoicing Exchange Summit. Find out what's in store and how you can join us!

7 minute read

What is Peppol?

Usage of Peppol is growing fast across Europe and beyond. But what is Peppol, how does Peppol work, and what advantages does it offer?

We use cookies to provide an optimal website experience. You decide which one you want to allow. Depending on the setting, however, not all functionalities may be available to you. Data protection & Imprint.