Skatteverket Registration

After commissioning a system via the fiskaly UAPI, the merchant must register their cash register with Skatteverket within 14 days (Swedish Tax Procedure Act, Skatteförfarandelag, SFS 2011:1244). This page provides the step-by-step process.

⚠️14-day legal deadline

Failure to register within 14 days of putting the cash register into use constitutes a violation of the Swedish Tax Procedure Act (SFS 2011:1244) and may result in penalties from Skatteverket. The POS provider should communicate registration requirements and provide necessary details promptly after commissioning.

Prerequisites

Before the merchant can register, the POS provider must supply:

Information	Value	Source
Technical security system ID (Tillverkningsnummer)	16-character identifier (e.g. SE01ABCD12345678)	Generated by fiskaly at system commissioning
TCS Control Server ID	ISTCSKS0000000011 (static, 17 characters)	Provided by fiskaly
Location address	Physical address where the register operates	Location resource in UAPI

💡Providing information to merchants

Consider building a post-commissioning screen or email notification in your POS that displays the technical security system ID (tillverkningsnummer) and TCS Control Server ID with clear instructions to register with Skatteverket.

Registration steps

The merchant completes registration via Skatteverket’s online portal (skatteverket.se) using BankID authentication.

1. Step 1: Register the kontrollenhet (control unit)

   The kontrollenhet is the certified control system. The merchant registers it with the following details provided by fiskaly:

   Field	Value
   Tillverkare (Manufacturer)	TCS
   Modell (Model)	System ver. 1.1 + Miljö rev. A
   Adress (Address)	Tunnelgatan 2, Stockholm
   Kontrollserverns ID (Control Server ID)	ISTCSKS0000000011

   📘Shared control system

   All merchants using fiskaly SIGN SE share the same kontrollenhet registration details. The control system is a cloud service managed by fiskaly — the registration identifies which control system the cash register is connected to, not a physical device at the merchant’s location.

2. Step 2: Register the cash register

   Next, the merchant registers the individual cash register (kassaregister):

   Field	Value
   Kassabeteckning (Register designation)	The technical security system ID (tillverkningsnummer) — a 16-character identifier
   Driftsplatsens adress (Operating location address)	Physical address where the register is used
   Kontrollenhet	Link to the kontrollenhet registered in Step 1

   The merchant must use the technical security system ID as the kassabeteckning. This value uniquely identifies this specific cash register within the Skatteverket system.

3. Step 3: Enrollment (automatic)

   The enrollment step is handled automatically by the fiskaly UAPI during system commissioning. When the system state is updated to COMMISSIONED:

   1. The UAPI validates that all required fields are present for enrollment — including producer.details.brand and producer.details.model, which are optional at creation but required at this stage (returns HTTP 422 if missing)
   2. The UAPI triggers enrollment with the control system
   3. fiskaly generates the 16-character technical security system ID (tillverkningsnummer)
   4. The system is registered with the TCS (IDM action: NEW)
   5. The system is ready to issue receipts

   No manual merchant action is required for this step. The POS vendor must retrieve the technical security system ID from the UAPI response and provide it to the merchant for Skatteverket registration.

After registration

Once registration is complete:

• The merchant receives a confirmation from Skatteverket
• The cash register is legally permitted to operate
• The POS should perform its first INTENTION::OPENING check to verify TCS connectivity
• Normal receipt operations can begin

Changes and decommissioning

The merchant must also notify Skatteverket within 14 days when:

• The cash register is moved to a different location — update the operating address
• The cash register is decommissioned — notify Skatteverket and decommission via UAPI (triggers IDM action: CLOSE)
• The kontrollenhet is changed — update the control unit registration

⚠️Decommissioning via UAPI

When decommissioning a system via the UAPI (setting state to DECOMMISSIONED), the system is automatically unregistered from the TCS. However, the merchant must still manually notify Skatteverket of the decommissioning through their portal.

Common questions

Q: Can I register multiple cash registers under one kontrollenhet? Yes. All cash registers using fiskaly SIGN SE share the same kontrollenhet (TCS cloud server). Each register has its own unique technical security system ID (tillverkningsnummer).

Q: What if the merchant misses the 14-day deadline? The merchant should register as soon as possible. Late registration may result in a penalty fee from Skatteverket, but the system will continue to function technically.

Q: Does the merchant need to register in TEST environment? No. Skatteverket registration only applies to LIVE systems. TEST environment systems do not need to be registered.