
e economic benets of eInvoicing to businesses within the EU are signicant. More than
30 billion invoices are generated each year. e vast majority of this activity is paper invoices,
with an average cost of €30 per invoice. Early case studies show that a shi to eInvoicing in
EU countries can reduce invoicing costs by as much as 80%. For example, the savings from
the conversion of business-to-business invoicing alone within the EU is conservatively
estimated at €243 million annually.
2
Paper-based invoicing systems can be slow and error-
prone because as they require signicant human involvement, including handling and media
transfers from computerized systems to paper at the invoice’s source and back to the buyer’s
electronic systems. Tracking and correcting errors can add further delays and costs to
transactions. e cost of processing an invoice-related complaint typically exceeds €100.
3
e European Commission has set out a legal framework (Council Directives 2001/115/EC
and 2006/112/EC) for national regulations governing harmonized invoicing with regard to
VAT requirements. is framework is designed to encourage the universal reach of eInvoicing
across countries, sectors, and businesses, as well as inclusiveness, ease of use, and openness
to competition and choice of service providers. e framework stipulates a set of master data
elds that shall be incorporated in all invoices issued throughout the EU for VAT tracking
purposes. Additionally, it encourages the use of electronic invoicing, provided that the
authenticity of the sender and the integrity of content are guaranteed. e framework
recognizes the use of advanced electronic signatures, such as digital signature technology,
as well as other mechanisms based on the use of EDI systems. National tax legislation may
add further stipulations, such as dening retention periods for invoices by either or both
parties or requiring digital signatures.
eInvoicing process overview
Electronic invoicing systems must strive to deliver business eciencies through end-to-end
automations that permit straight-through processing and reduce costly errors and manual
processes while improving productivity. eInvoicing systems must ensure the integrity and
authenticity of data while complying with legal constraints and permitting auditors to conduct
their inquiries unfettered by technical impediments.
Figure 1 shows a typical electronic invoicing process. e following processing steps are
common to any deployment:
1. Prepare data—e supplier provides invoice data from online forms or directly from
back-end systems such as order handling or shipping.
Figure 1. Typical electronic invoicing process based on the best practice developed by the CEN/ISSS
Workshop on Compliance of eInvoices.
4
“The promise of eInvoicing is
to enhance economic vitality
by simplifying core business
processes. Software architectures
that enable straight-through
invoice processing utilizing
open standards such as PDF
will play a strategic role in
realizing that promise.”
Stefan Engel-Flechsig
Legal counsel and chairman
CEN/ISSS Workshop
on Compliance of eInvoices
2
BUYER
XML
CEN eInvoicing process
www.
@
E-mailInternet
SUPPLIER
DATA
Supplier prepares
invoice data.
Convert application-
specic invoice data
to XML.
Track invoice data and
manage data integrity and
authenticity.
Intelligent PDF and PDF/A create
an auditable trail that can be
accessed at any time. Buyers and
tax auditors can open intelligent
PDF les using free Adobe Reader.®
PDF
1. Prepare data 2. Convert raw data 3. Create intelligent
PDF invoice
4a. Archive invoice
4b. Send invoice
7. Verify and
process data
Data can be audited
RAW
XML
XML
AUDITOR
Check and reconcile
against all the necessary
les available for invoice
handling.
XML
PDF
ARCHIVE
6. Extract XML data
PDF
XML
Verify integrity of invoice
and authenticity of sender.
5a. Receive invoice
5b. Archive invoice
PDF
XML
PDF
ARCHIVE