Your Edge with Docuflair Invoice
Four reasons the invoice gets through at the other end
Checked the way the recipient checks
198 distinct EN 16931 business rules, natively implemented — not merely a schema check. An invoice that passes here passes at the receiving end too, and a violation returns the rule ID rather than a generic error.
One format in, another out
81 combinations across the nine formats. An XRechnung becomes a FatturaPA, ZUGFeRD becomes Peppol BIS — without turning into an integration project and without the recipient having to change anything.
Europe, not a world map
Nine formats that are actually required in Europe — from XRechnung and ZUGFeRD through ebInterface and FatturaPA to KSeF and Facturae. Depth in the profiles and country customisations instead of a long list with half coverage.
Interface and API
The same ten tools in the browser and through the API. Accounting works in the web interface, the ERP talks to the endpoint directly — no second product, no second licence.
What Docuflair Invoice does not do
It creates and validates conformant XML — it does not transmit. Docuflair is not a Peppol Access Point and does not deliver to SdI, KSeF or Chorus Pro. Sending runs over your existing channels; what Docuflair provides is the file that will be accepted there.
Supported E-Invoicing Formats
One tool. All relevant e-invoicing formats. 100% XSD-valid.
XRechnung
UBL 2.1, EN 16931 compliant
100% XSD validZUGFeRD / Factur-X
UN/CEFACT CII - MINIMUM, BASIC-WL, BASIC, EN16931, EXTENDED
100% XSD validAustrofix
BRZ v5.0.0
100% XSD validEB-Interface
v6.1
100% XSD validFatturaPA
v1.2
100% XSD validPeppol BIS Billing 3.0
UBL 2.1, EN 16931
100% XSD validFinvoice
v3.0
100% XSD validFA_VAT (KSeF)
KSeF FA(3), Polish mandatory format
100% XSD validFacturae
v3.2.2
100% XSD validE-Invoicing Without Format Chaos
Everything you need for professional e-invoicing
Digital Invoice Creation
- Web-based user interface
- Structured data entry instead of XML coding
- EN-16931 compliant invoice creation
- Ready to use immediately, no installation required
Format Conversion
- Conversion between all supported e-invoicing formats
- Lossless data transfer
- Ideal for international business partners and authorities
Validation & Compliance
- XSD validation of all formats
- Checking for standard and profile conformity
- Error and warning messages with clear explanations
Who is Docuflair Invoice for?
The right solution for different requirements
Businesses & SMEs
- E-invoicing obligation (B2G, B2B)
- International business partners
- Reduction of manual invoicing processes
Software Vendors & ERP Manufacturers
- E-invoicing function without in-house development
- White-label or API integration possible
Tax Advisors & Accounting Services
- Validation of incoming invoices
- Standard-compliant conversion for clients
IT Service Providers & System Integrators
- Technically clean solution for customer projects
- Local or web-based operation
Extensible Additional Features
Flexibly adaptable to different use cases
Measurable Results
The scope in numbers — counted in the product code, as of August 2026
XRechnung, ZUGFeRD/Factur-X, Peppol BIS, FatturaPA and five more
every format into every other, without loss
business rules checked natively, with the rule ID in the report
from validate and convert through to "PDF to e-invoice"
VAT Number Validation Included
Validate VAT identification numbers directly during invoice processing
Simple Validation
Automatic VAT number validation via the official VIES interface of the European Commission – directly in the invoicing workflow.
Qualified Check
Verify company name and address against registered data. Includes consultation number as proof for tax documentation.
All 27 EU Countries
Validation for all EU member states: AT, DE, FR, IT, ES, NL, BE, PL and all others – including Northern Ireland (XI).
Audit-proof Logging
Every validation is logged with timestamp and consultation number – for seamless compliance documentation.
Try it yourself — free, no signup
Create, validate and convert e-invoices directly in your browser on our public e-invoice portal. Nine European format standards, validated per EN 16931 — no registration, no installation. The convert tool transforms all formats into one another and additionally accepts SAP INVOIC IDoc and UN/EDIFACT INVOIC as auto-detected source and selectable target — with Excel and JSON as output targets included.
The portal is the cloud service of Docuflair Invoice: test free for a month and scale with the Startup, Team or Business plans — including archive, tamper-proof numbering (GoBD), REST API and batch processing. If you need full data sovereignty, run the platform as the Enterprise solution on-premises in your own data centre.
Jump straight to a tool: Create e-invoice · Validate e-invoice · View e-invoice · Convert e-invoice · Extract data · Combine invoices · PDF to e-invoice · Invoice data extraction · Batch processing · Bulk import · Write invoices with sequential numbering (account required)
Relevant for these industries
Derived from the target groups of this page
Enterprise
Invoices, contracts and HR records across every department, each with its own filing logic.
To the industry pageRetail
Incoming invoices, supplier records and receipts in high volume with a thin administrative layer.
To the industry pageTax advisors
Receipts, annual accounts and client correspondence under statutory retention periods and constant audit pressure.
To the industry pageAuditors
Audit files that must remain traceable years later — with four-eyes review and documented responsibility.
To the industry pageFrequently Asked Questions
Answers to the most important questions about Docuflair Invoice
What is Docuflair Invoice?
Docuflair Invoice is a web-based e-invoicing engine for creating, converting and validating European e-invoicing standards. The software supports all common formats such as XRechnung, ZUGFeRD, Peppol BIS Billing, FatturaPA, EB-Interface and more - without XML knowledge or specialist expertise.
How much does Docuflair Invoice cost?
The cloud plans cost €9.90 (Startup), €34.90 (Team) and €99.90 (Business) per month with annual billing — and each comes with a free first month. Enterprise for on-premises operation starts at €299/month plus a one-off installation fee. Compare pricing →
Which e-invoicing formats are supported?
Docuflair Invoice supports nine European e-invoicing standards: XRechnung (UBL 2.1), ZUGFeRD/Factur-X (all profiles from MINIMUM to EXTENDED), Peppol BIS Billing 3.0, FatturaPA (Italy), EB-Interface and Austrofix (Austria), Finvoice (Finland), FA_VAT for the Polish KSeF system as well as Facturae (Spain). All formats are 100% XSD-validated.
What does 100% XSD-valid mean?
XSD validation means that every generated e-invoice is checked against the official XML schema of the respective standard (validated against official XRechnung/ZUGFeRD schemas). With Docuflair Invoice, there are no partial implementations or "best effort" exports - what the system generates corresponds 100% to the technical requirements and is accepted by recipient systems.
Can I convert between different e-invoicing formats?
Yes, Docuflair Invoice converts losslessly between all supported e-invoicing formats. For example, you can convert an XRechnung to FatturaPA or a ZUGFeRD document to Peppol BIS - ideal for international business relationships and different authority requirements.
Does Docuflair Invoice support credit notes?
Yes, credit notes and corrective invoices are generated standard-compliant in all nine formats — as UBL CreditNote (XRechnung, Peppol), type 381 (ZUGFeRD, Austrofix), TipoDocumento TD04 (FatturaPA), RodzajFaktury KOR (FA_VAT/KSeF) or corrective invoice (Facturae). Document- and line-level charges and allowances, delivery addresses, billing periods and VATEX tax exemption reasons are covered as well.
Can Docuflair Invoice create and validate ZUGFeRD hybrid PDFs?
Yes. Docuflair Invoice embeds invoice XML into PDF/A-3 (ZUGFeRD/Factur-X hybrid), extracts embedded XML from existing hybrid PDFs and validates hybrid PDFs directly — the embedded invoice is detected automatically and checked against EN 16931. For large volumes, batch validation and conversion with ZIP and CSV export are available.
Is Docuflair Invoice EN-16931 compliant?
Yes, the European standard EN 16931 is at the heart of Docuflair Invoice (per EN 16931 and XRechnung Standard 3.0). All generated invoices comply with the semantic data model of this standard. Profile rules are explicitly considered, and validation is fully traceable and explainable.
Who is Docuflair Invoice suitable for?
The solution is aimed at businesses and SMEs with e-invoicing obligations (B2G, B2B), software vendors and ERP manufacturers who want to integrate e-invoicing functions, tax consultants and accounting service providers for validation and conversion, as well as IT service providers and system integrators for customer projects.
Is an API offered for developers?
Yes, Docuflair Invoice offers a REST API for developers and system integrators in addition to the web-based user interface. This lets you seamlessly integrate e-invoicing functionality into existing ERP, accounting or inventory management systems - including batch processing for large invoice volumes.
Can Docuflair Invoice be operated on-premises?
Yes. Startup, Team and Business run as a cloud service on invoice.docuflair.com. The Enterprise plan (from €299/month plus a one-off installation fee) runs on-premises in your own data centre — as a Docker container or systemd service, with maintenance, updates and a support SLA. Companies with special security requirements retain full control over their invoice data within their own infrastructure.
Can Docuflair Invoice automatically validate VAT numbers?
Yes, Docuflair Invoice automatically validates VAT identification numbers via the official VIES interface of the European Commission. In addition to simple validity checks, qualified requests with company name and address verification are also supported. Every validation is logged with a consultation number in an audit-proof manner.
You can also validate VAT numbers for free using our online VAT number validation tool.
Complementary Products
Discover additional solutions that pair perfectly with Docuflair Invoice
Docuflair Archive
Archive processed invoices in revision-proof PDF/A format for long-term storage.
Learn moreDocuflair Scan
Digitize paper invoices in high quality and prepare them for automated processing.
Learn moreCompliance across international markets
Docuflair supports the legal requirements of the European Union, the United Kingdom and the United States – with configurable rule sets for further jurisdictions.
European Union & EEA
EN 16931 and Directive 2014/55/EU: the European semantic standard for electronic invoicing, with 198 business rules checked natively and country customisations for DE, AT, IT, FI, PL, ES and RO.
United Kingdom
UK VAT record-keeping under Making Tax Digital and the six-year retention rule: invoices generated and archived in a form that remains legible and unaltered.
United States
IRS Rev. Proc. 97-22 for electronically stored records and state-level sales-tax retention — supported through configurable retention profiles on the archived invoice.
Other jurisdictions
Configurable retention profiles, jurisdiction-specific rule sets and your choice of data residency – on-premises or dedicated private cloud. OCR covers 99 languages.
Runs on Windows and Linux
Docuflair is cross-platform. The server applications run on Windows Server just as they run on Linux — with an identical feature set, an identical administration interface and an identical data model. Choosing the server platform is therefore a question of your IT strategy, not of the product.
- Windows
- Linux
- macOS
- Android
- Browser
Free choice of server platform
Windows Server 2019, 2022 and 2025, or Linux — tested on Debian 12 and Ubuntu 22.04 LTS and newer. Further distributions on request. Switching platform later is possible without losing configuration or document repository.
No IIS, no Apache
The web server is part of the application (.NET 10). There is no additional server role to install, harden and patch — which shortens deployment and reduces the attack surface.
Workstations of every kind
The client applications run on Windows, Linux and macOS, the mobile app on iOS and Android. Administration and self-service run in the browser — with no local installation at all.
Virtualised or containerised
Operation on Hyper-V, VMware, Proxmox VE and Citrix, as well as in Docker or Podman containers and in LXC. On Linux each instance runs as its own systemd service.
E-Invoicing Without Standards Chaos
See in 15 minutes how you can create, convert and validate XRechnung, ZUGFeRD and Peppol in one tool.