eInvoicing in Italy — Overview

eInvoicing works the same way across fiskaltrust markets — the shared model, the /sign + /issue flow, and the no-webhook rule are described in eInvoicing — Overview. This page covers only what's specific to the Italian (IT) market.

Regulatory status

Aspect	Current status
Scope	B2G, B2B, and B2C.
Regulatory model	Centralised clearance — SDI validates and clears every invoice before it is legally effective.
Live since	2019 (full B2B mandate). No upcoming deadline to plan around.
Current spec	FatturaPA v1.9.1 — live since 15 May 2026; derogation running to December 2027.
Format	FatturaPA — Italy's own XML schema (predates EN 16931), requires an XAdES signature.

Already live — usually a displacement

Italy's eInvoicing has been mandatory since 2019, and SDI clearance covers B2G, B2B, and B2C. Most merchants already run some eInvoicing arrangement, so integrating through fiskaltrust is typically replacing an existing setup, not a first-time build. There is no upcoming deadline forcing the question.

Terminology

Term	Meaning
FatturaPA	Italy's own XML schema — predates EN 16931, requires an XAdES signature.
SDI	Sistema di Interscambio, the centralised hub that clears every invoice.
CodiceDestinatario	The routing code identifying a buyer's channel in SDI.
PEC	Certified email — the fallback delivery channel for an unknown buyer.
XAdES	The digital signature standard required on FatturaPA documents.

Related pages

• eInvoicing — Overview — the shared model, integration flow, and prerequisites across markets.
• Set up and test eInvoicing (Italy) — prerequisites, Portal enablement, and the end-to-end sandbox example.
• Delivery (/issue Endpoint) — the product-level eInvoicing and e-Delivery concept across all markets.
• Migrating from API v0 to PosSystem API (v2) — eInvoicing is a PosSystem API (v2) feature.
• Appendix: IT (Registratore Telematico) — Italy fiscalization details.
• eInvoicing in Italy (European Commission) — the EU Digital Building Blocks country factsheet.