fiskaly has launched SIGN SE, a certified cloud-based control system (kontrollsystem) for the Swedish market, built on the technology of Infrasec, acquired by fiskaly in 2025.
Swedish law requires that every cash register be connected to a certified control function that records each transaction, generates a control code, and stores the data so it cannot be altered after the fact. Historically this was a physical box next to the register. SIGN SE provides this as a certified cloud control system, reached through the fiskaly API.
The timing matters: only a small and shrinking share of purchases in Sweden are still paid in cash — by some counts, fewer than one in ten — and both Sveriges Riksbank and the Swedish parliament have said the country now functions, in practice, as a cashless society. Yet none of that changes a business's fiscal obligations: every transaction, however it's paid, still needs to be recorded through a certified control function.
Any company selling goods or services for cash, card, or Swish above a modest annual threshold still has to record every sale on a certified cash register (kassaregister) and hand the customer a compliant receipt. Here's what that requirement covers, why it used to mean hardware at every till, and what SIGN SE changes for POS vendors and merchants selling into Sweden.
Why Sweden still needs a certified cash register
Under Skatteverket's rules, any business that sells goods or services for cash, card, or Swish payment totaling at least four price base amounts — SEK 236,800 including VAT for 2026 — in a financial year must use an approved kassaregister. The obligation applies regardless of company form, including sole traders. It doesn't apply if a business only invoices its sales, runs e-commerce with online payment, operates a taxi, or sells through unattended vending machines.
The requirement is payment-method agnostic by design: whether a customer taps a card, pays with Swish, or hands over a banknote, the sale has to be signed and logged the same way, and the customer is entitled to a receipt. Get it wrong, and Skatteverket can issue a control fee (kontrollavgift) of SEK 12,500 for a first violation, rising to SEK 25,000 for a repeat offense within a year.
The old way: hardware at every till
Sweden has required certified cash registers since 2010, and Skatteverket carried out more than 100,000 control visits in the first three years alone to enforce it. For most of that period, compliance meant a physical control unit (kontrollenhet) wired into every till — hardware that POS providers had to source, get certified, and maintain separately in each market they sold into.
Skatteverket's regulation SKVFS 2020:9 changed that by permitting a certified cloud-based control system, made up of a control program, a signing module, and a control server, to perform the same function through an API instead.
SIGN SE: the certified cloud control system for Sweden
SIGN SE is built entirely on that cloud model, delivered through the fiskaly API, the same infrastructure approach fiskaly already runs across Germany, Austria, Spain, France, Italy, and Portugal, making Sweden its seventh European market for cloud fiscalization. POS vendors already integrated in any of those markets can extend into Sweden as a configuration step rather than a new project.
SIGN SE handles certified transaction signing, the receipt control code, register status checks, and the artifacts merchants need when they register with Skatteverket. It's worth being precise about the boundary: registering with Skatteverket itself remains a direct, merchant-led process — fiskaly doesn't interact with the tax agency on the merchant's behalf. POS vendors can start today with free API testing and no integration commitment.
A framework that keeps moving
Skatteverket has continued to update the rules since 2020. From 1 January 2027, cash registers must meet Skatteverket's updated requirements for standard data export — most importantly, a register with a journal memory (journalminne) must be able to export its records in a standardized XML format, as specified in SKVFS 2021:16. The transitional rules in SKVFS 2021:18, which allow older systems to be used only until 31 December 2026, mean compliance here isn't a one-time integration — it's an ongoing obligation. POS vendors and merchants already on a certified cloud system, rather than dedicated hardware, are better placed to absorb changes like this without a device swap.
Next steps
POS vendors selling into Sweden can start integrating SIGN SE today, with free API testing and no integration commitment. Get in touch with fiskaly's team to talk through certification, timelines, and how SIGN SE plugs into an existing SIGN integration.
Last updated: July 2026. This article is general guidance, not legal advice. Confirm scope and requirements against Skatteverket's current rules at skatteverket.se.
