SIGN CZ (Unified API) is currently available in the test environment only
and transmits to the tax authority’s playground. Every confirmation carries
test="true" and has no legal standing. Production is not yet activated:
real onboarding (DIS+ unit declaration, cash certificates) opens on
2026-11-01, and the legal obligation starts on 2027-01-01. These
dates depend on the Act being promulgated in time.
Czechia reintroduces electronic sales registration with EET 2.0 (Elektronická evidence tržeb, interface v4.1). The first generation was abolished on 2023-01-01 by Act 458/2022 Sb.; the new obligation starts on 2027-01-01 for all taxpayers at once — no phasing, no pilot. There is no certification regime: any compatible solution may be used.
SIGN CZ (Unified API) brings Czech sales registration into the fiskaly Unified API surface, providing the same developer experience as SIGN FR, SIGN IT, SIGN PT, SIGN SE, SIGN ES and SIGN AT. fiskaly handles signing, transmission and confirmation handling, so your POS never touches certificates, SOAP or Czech field names.
At a glance
Section titled “At a glance”| Regulation | Real-time reporting of reportable sales to the Financial Administration (Finanční správa), governed by the Sales Registration Act. Each sale is confirmed with a POK code. |
| What it requires | A taxpayer identifier (DIČ), business units declared through DIS+ (each receiving an authority-allocated id_jednotky), a cash certificate issued after the unit declaration, and a till identifier (id_pokl) per register. |
| What it does NOT require | No customer receipt obligation. Nothing must be printed or handed over — no QR code, no POK on the receipt, no offline signature codes. Older articles describing receipt codes or a “five-day offline mode” refer to EET 1.0 and do not apply to 2.0. |
| Integration effort | Standard Unified API integration — same resource model as the other SIGN products. CZ-specific payload fields (fiscalization type, labels, payment channel) are the only differences. |
| API version | Unified API v5 (X-Api-Version: 2026-06-01). |
Key features
Section titled “Key features”🇨🇿 EET 2.0 compliant
Signs and submits every reportable sale to the Financial Administration and stores the returned POK confirmation on the record.
☁️ Cloud-based
No hardware, no local certificate handling. The cash certificate and WS-Security signing live in the fiskaly cloud.
🔗 Unified API
Same resource model as all fiskaly SIGN products — taxpayers, locations, systems, records.
Get started
Section titled “Get started”Step-by-Step Integration
From taxpayer setup to your first POK on the playground.
Process Overview
Record lifecycle, confirmations, error and warning codes.
Payment Channels
Which sales must be recorded, and the channel field.
Outages & the 48-Hour Rule
The legal store-and-forward obligation.
Onboarding & Credentials
DIS+, cash certificates, identifiers.
Glossary
The Czech field names, translated.
FAQ
Frequently asked questions about SIGN CZ.
API Specification
Select 🇨🇿 Czechia in the country selector for the CZ-specific view.