Guides

JIR and ZKI on an invoice: meaning and how to verify them (2026)

What JIR and ZKI are, where to find them on a fiscalized invoice, how to verify a receipt with the Tax Administration, and the new AMS/MPS terms.

Published: June 25, 2026

What is JIR?

JIR is the unique invoice identifier assigned by the Tax Administration at fiscalization.

What is ZKI?

ZKI (issuer security code) is generated by the issuer using its certificate, before sending.

AMS and MPS

Fiscalization 2.0 introduces AMS (access-point registry) and MPS (exchange service) - the routing infrastructure your intermediary handles.

Frequently asked questions

JIR vs ZKI?: ZKI is generated by the issuer; JIR is returned by the Tax Administration.
Where on the invoice?: In the footer, next to the 2D/QR code.
AMS and MPS?: Routing and exchange infrastructure for e-invoices.

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