One of the largest rollouts in the world by transaction count. The state portal was scaled back — invoices flow through certified PDP platforms.

A big-bang rollout — every VAT-registered business at once over the Peppol network. The penalty-free tolerance window closed 31 March 2026.

Europe's longest-running mandate. Every invoice clears through the Sistema di Interscambio. Healthcare services remain exempt.

B2B live since July 2024 via the national RO e-Factura platform, now expanding toward B2C simplified invoices.

New domestic mandate live from the start of 2026, built on Croatia's Fiskalizacija 2.0 real-time reporting framework.

Clearance model: invoices must be validated by KSeF before they are legally issued. The proprietary FA(3) schema is the only accepted B2B format.

Receiving has been mandatory since 2025. Issuing phases in by turnover — large first, everyone by 2028. Both XRechnung and ZUGFeRD are accepted.

Mandatory B2B e-invoicing rolls out in two phases via the myDATA platform: large enterprises first, everyone else from October 2026.

Two parallel tracks: Veri*Factu certified-software rules in 2027, plus a B2B e-invoicing mandate awaiting its final implementing regulation.

B2G is already live. The B2B track adds a qualified electronic signature requirement as the regime firms up for 2027.

A decentralised, EN 16931-aligned model with real-time reporting, bringing all VAT payers in from the start of 2027.

A buyer's right to request structured e-invoices is already in force; a broader domestic mandate is expected to follow.

B2G is live from 2026 with a legislated B2B mandate to follow, built on Peppol and structured reporting to the SRS.

No active domestic B2B mandate yet — B2G runs over Peppol and forward planning is shaped primarily by ViDA's 2030 intra-EU requirement.

Public-procurement e-invoicing is mandatory, but there is no domestic B2B mandate — the real driver is ViDA cross-border readiness.

An early B2G adopter since 2014, but B2B e-invoicing remains voluntary — forward planning is anchored to ViDA.

B2G runs over NemHandel; the new Bookkeeping Act is progressively requiring digital bookkeeping and structured e-invoice capability.

B2G has run over Peppol since 2019; a domestic B2B mandate is under study, with ViDA the main driver.

A buyer's right to demand structured e-invoices has applied since 2020; a full mandate awaits ViDA.

A phased readiness programme rather than one deadline. Revenue advises starting capability work now, not deferring.

B2G runs on the national e-SLOG format; a B2B mandate with reporting is expected to follow.

Hungary mandates real-time invoice data reporting to NAV rather than a structured e-invoice format — in force and comprehensive since 2021.

B2G runs over Peppol; no domestic B2B mandate is confirmed, with ViDA the main driver.

B2G supports ISDOC and Peppol; there is no confirmed domestic B2B mandate ahead of ViDA.

B2G runs over Peppol; no domestic B2B mandate is confirmed ahead of ViDA.

B2G is mandatory over Peppol; no domestic B2B mandate is confirmed ahead of ViDA.

B2G runs over Peppol; no domestic B2B mandate is confirmed ahead of ViDA.

Legislation is approved: structured B2B e-invoicing and digital bookkeeping — issuing from 2027 and receiving from 2030, on the mature EHF/Peppol base.

No B2B mandate yet — the government consulted on e-invoicing in 2025, with Peppol already used across the NHS and wider B2G.

A five-corner Peppol model using the PINT AE profile, operating as a continuous-transaction-control programme.

ZATCA's Fatoora programme keeps expanding integration to lower turnover bands wave by wave.

A clearance-style continuous-transaction-control model phasing in from August 2026 with selected large taxpayers.

Phased real-time reporting through MyInvois; each phase lowers the turnover threshold for inclusion.

Peppol-based InvoiceNow reporting to IRAS, starting with newly incorporated companies registering for GST.

Real-time reporting through Invoice Registration Portals; the turnover threshold keeps dropping.

A national e-invoicing framework is being established, with a phased rollout expected to begin from 2026.