Overview

fiskaly SIGN SE is designed to help POS providers comply with Swedish cash register legislation, particularly SFS 2007:592 (Cash Register Act) and SKVFS 2020:9 (Control System Regulations). According to these regulations, every cash register must be connected to a certified cloud-based control system that signs transactions and returns a legally mandated control code (avstämningskod).

What is SIGN SE?

SIGN SE is fiskaly’s Swedish fiscalization product. It provides a single API through which POS systems can sign transactions, enroll cash registers, and retrieve compliance artifacts — all without managing the underlying certified control system directly.

Swedish law (SFS 2011:1244) requires cash registers to connect to a certified cloud-based control system. SIGN SE handles this requirement for you: your POS talks to the fiskaly UAPI, and fiskaly manages the certified signing infrastructure on your behalf.

Core features

• Transaction signing — Each fiscal transaction returns a 113-character control code (avstämningskod) that must be printed on the receipt
• Counter management — Cumulative counters for sales, returns, VAT, and per-document-type counts are maintained server-side automatically
• System enrollment — Cash registers are enrolled during commissioning, generating the unique 16-character tillverkningsnummer required by Skatteverket
• Startup verification — Mandatory INTENTION::OPENING check at every POS startup to confirm signing service connectivity before issuing receipts
• Five document types — Full support for kassakvitto, returkvitto, kvittokopia, pro forma, and training receipts
• Compliance artifacts — Retrieve signed compliance data from records for audit purposes

SIGN SE at a glance

POS providers interact with familiar UAPI endpoints (taxpayers, locations, systems, records) while fiskaly handles signing, enrollment, and compliance artifact management behind the scenes.

Document Type	Swedish Name	Control Code
Cash register receipt	Kassakvitto	Yes
Return receipt	Returkvitto	Yes
Receipt copy	Kvittokopia	Yes
Pro forma receipt	Pro forma-kvitto	No
Training receipt	Övningskvitto	No

How it fits together

┌─────────────┐              ┌──────────────────┐              ┌──────────────┐
│   Your POS  │─────────────▶│  fiskaly SIGN SE │              │ Skatteverket │
│             │◀─────────────│  (Unified API)   │              │  (oversight)  │
└─────────────┘              └──────────────────┘              └──────────────┘
  You handle:                  fiskaly handles:                  Receives:
  • API calls                  • Signing                        • Registration
  • Receipt printing           • Enrollment                     • Audit data
  • Merchant UX                • Counter management
                               • Compliance artifacts

Key regulatory requirements

Requirement	Description	SIGN SE Implementation
Control code on receipt	Every kassakvitto must carry a cryptographic control code	Automatic — returned in the TRANSACTION response
Startup status check	POS must verify signing service connectivity before sales	INTENTION::OPENING record type
14-day registration	Cash registers must be registered with Skatteverket within 14 days	Tillverkningsnummer generated at commissioning
Receipt field requirements	13 mandatory fields defined by SKVFS 2021:17	See Receipt Compliance
Five document types	Regulated receipt categories per SKVFS 2021:16	All five supported via UAPI record types

SIGN SE is a JSON-based RESTful API with full documentation in the API description (API Reference) and support available at workspace.fiskaly.com.

💡Getting started

Follow the Step-by-Step Integration Guide to set up your first system and sign your first receipt.

Next Steps

Step-by-Step Integration

Complete walkthrough from account setup to signing your first receipt.

Process Overview

Document types, VAT structure, offline handling, and error codes.

Receipt Compliance

Mandatory receipt fields and per-document-type printing requirements.

Glossary

Key terms and definitions for Swedish fiscal compliance.

FAQ

FAQs can be accessed via support.fiskaly.com.