Guide
Understand your options
Practical explanations of formats, deadlines and invoice references.
Results: 24 of 24
- Checks and documents
Archive electronic invoices: which files should you keep?
Organise electronic invoice archives: retain original XML or hybrid PDFs, supporting evidence, delivery responses and a tested retrieval process.
- Requirements and dates
Croatia: eRačun and the fiscalisation workflow
Prepare Croatia’s eRačun workflow: establish scope, choose a channel, test references and distinguish invoice exchange from fiscalisation steps.
- Requirements and dates
E-invoicing in Belgium: getting ready for Peppol
Belgian B2B invoices: establish the applicable scope, prepare Peppol, identify recipients and organise technical checks before the first delivery.
- Requirements and dates
E-invoicing in Italy: FatturaPA and SdI
Understand FatturaPA and Italy’s Sistema di Interscambio: prepare invoice data, handle rejections and separate XML checks from actual delivery.
- Requirements and dates
E-invoicing in Poland: KSeF and FA(3)
Poland’s KSeF explained: rollout stages, the FA(3) invoice structure, access permissions and evidence to retain after submitting an invoice file.
- Routing and identifiers
EDI, Peppol and XML: format or delivery channel?
Understand EDI, the Peppol network and XML formats so you can choose an invoice workflow, test delivery and interpret responses from the customer.
- Checks and documents
Electronic credit notes: references, amounts and XML checks
Prepare an electronic credit note: choose the document type, preserve its link to the original invoice and check amounts, taxes and reconciliation.
- Checks and documents
Extract XML from a Factur-X or ZUGFeRD PDF
Find the embedded XML in a Factur-X or ZUGFeRD invoice, check its profile and compare its data with the PDF while keeping the original unchanged.
- Checks and documents
How to fix an invoice XML validation failure
Read an XML validation report: choose the right profile, resolve errors in a useful order and correct source data before generating another export.
- Formats and standards
PDF invoice or electronic invoice: what is the difference?
Plain PDF, structured invoices and Factur-X compared: understand the differences, identify your file and choose suitable checks before sending it.
- Routing and identifiers
Peppol identifiers, EndpointID and buyer references
Distinguish a Peppol electronic address, its schemeID and the buyer reference to avoid routing errors and prepare invoices the recipient can process.
- Checks and documents
Prepare a PDF invoice pack with ImgPact
Organise PDF supporting documents, convert images and review the result with ImgPact while preserving original files and hybrid Factur-X invoices.
- Requirements and dates
Romania: preparing invoices for RO e-Factura
RO e-Factura in Romania: prepare XML, organise exchanges with ANAF and retain responses without confusing technical validation with submission.
- Requirements and dates
Spain: B2B e-invoicing and VERI*FACTU explained
Separate Spain’s B2B electronic invoicing rules from VERI*FACTU: applicable texts, timing, software capabilities and questions for your provider.
- Requirements and dates
Switzerland: electronic invoices, PDF and federal customers
Invoice Swiss customers: distinguish business transactions from federal billing, choose PDF or structured data and preserve the right evidence.
- Formats and standards
UBL or CII: identify an invoice XML file
Compare UBL and CII: identify an invoice XML file, understand profiles and choose the right checks before conversion or delivery to a customer.
- Requirements and dates
United Kingdom: preparing for electronic invoicing
UK e-invoicing: understand the announcement for VAT invoices, distinguish public procurement requirements and prepare useful business processes.
- Checks and documents
VAT and rounding: find an invoice XML total mismatch
Resolve invoice XML total differences: reconcile lines, discounts, tax and payable amounts without hiding the underlying error with arbitrary rounding.
- Requirements and dates
E-invoicing in France 2026–2027: who is affected, when, auto-entrepreneurs too
The French e-invoicing reform: receiving for all from September 2026, issuing in 2026 or 2027 by size, accredited platforms, formats, auto-entrepreneurs.
- Requirements and dates
E-invoicing in Germany: who is affected and from when, small businesses included
The German e-invoicing mandate of § 14 UStG explained: receiving since 2025, issuing from 2027 and 2028, the exceptions and the case of Kleinunternehmer.
- Formats and standards
EN 16931 explained: the European norm behind every e-invoice format
What EN 16931 is and why XRechnung, ZUGFeRD, Factur-X and Peppol BIS build on it: business terms and rules, the two syntaxes, CIUS and extensions, ViDA.
- Formats and standards
The ZUGFeRD and Factur-X profiles explained, from MINIMUM to EXTENDED
What the six ZUGFeRD and Factur-X profiles contain, which ones count as an e-invoice under EN 16931 and German VAT law, and which profile to choose.
- Routing and identifiers
What the Leitweg-ID is: format, check digits and where it goes in an XRechnung
The Leitweg-ID explained: the routing identifier of German public bodies, its three parts, the check digits, where it goes in an XRechnung and how to check one.
- Formats and standards
XRechnung vs ZUGFeRD: which e-invoice format for which invoice
XRechnung and ZUGFeRD compared: what each format is, where German law requires which one, what they share through EN 16931, and how to choose the right one.
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