Introduction to SIGN DE
Welcome to fiskaly’s developer documentation! This page guides you through the technical and legal necessities you need to be familiar with to be compliant with the KassenSichV.
What is SIGN DE?
Section titled “What is SIGN DE?”ERS/PoS vendors, operators and taxpayers are required to meet the KassenSichV regulations. This means that an electronic recording system (ERS) or Point-of-Sale (PoS) software must integrate a certain set of processes and reporting to ensure that cash and card transactions are correctly recorded and protected against manipulation.
Following the acquisition of Deutsche Fiskal in early 2025, fiskaly has further strengthened its position as the market leader for cloud fiscalization in Germany, bringing together the industry’s most robust compliance technologies.
Technical Security System (TSS)
Your ERS must contain a TSS which cryptographically signs all relevant business transactions and their VAT information.
Immutable Records
The ERS and TSS together record each transaction, maintaining all records in an immutable, tamper-proof and auditable state.
Cloud-TSS
The fiskaly Cloud-TSS is the first TSS of its kind to have achieved full certification until 2033.
The fiskaly Cloud-TSS is the first TSS of its kind to have achieved the full certification until 2033. Details may be found on the certification page.
In normal, day-to-day use, you, the integrator, and your customer, the end-user, should treat the system as a “black box”.
Next Steps
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