Austria: Formats and rules

When does the obligation apply?

Country information
Scope	From	Status
Public clients	1 Jan 2014	in forceFederal agencies, ebInterface or Peppol
Companies (B2B)	—	no obligation

Mandatory: ebInterface or Peppol BIS for federal agencies since 2014.

No general B2B mandate; Peppol is widely used.

Formats	ebInterface 6.x · Peppol BIS Billing 3.0 (UBL) · UBL 2.1 according to EN 16931
CIUS	Peppol BIS Billing 3.0
Routing identifier	Peppol ID (EndpointID, BT-34/BT-49)
Responsible body	BRZ / Federal Ministry of Finance

ebInterface is not validated; for Peppol and EN-16931 documents the check is complete.

Status: 12.10.2026

When does the e-invoicing requirement apply in Austria?: The table above gives the dates for Austria: when receiving and when issuing become mandatory, for public bodies and for companies separately.
Does the requirement apply to small businesses too?: Usually yes. The obligation follows from trading between businesses, not from the size of the business. Smaller companies are often covered later, where a transition period applies — the dates above show where Austria stands.
Which formats are allowed in Austria?: The formats that satisfy EN 16931. Which ones apply in Austria, and which CIUS, is listed under formats and rules.
Can I check my invoice for Austria for free?: Yes. The validator checks free of charge and without sign-up against the rule sets that apply to Austria.

Free, without registration. The set of rules is selected from the specification identifier of the invoice.

Official rule sets up to date: EN 16931 1.3.17 · Peppol BIS 3.0.20 · XRechnung 3.0.2 (KoSIT 2.6.0). Last checked against the sources on 12.10.2026.