The legal basics
Las normas suecas sobre cajas registradoras se introdujeron con la Kassalagen (la Ley de Cajas Registradoras, SFS 2007:592) y hoy están recogidas en el Capítulo 39 de la Ley de Procedimiento Tributario (Skatteförfarandelag, SFS 2011:1244), junto con las normas técnicas de Skatteverket — SKVFS 2021:17 (requisitos para las cajas registradoras), SKVFS 2021:18 (uso de las cajas registradoras) y SKVFS 2021:16 (exportación del diario) —, que detallan lo que debe hacer una caja registradora conforme, incluida la generación de un informe Z y la comunicación de cada venta a un sistema de control certificado.
Cualquier negocio que venda bienes o servicios en efectivo o con tarjeta debe, por lo general, utilizar un sistema certificado, registrar cada transacción y conectarlo a un Kontrollsystem o Kontrollenhet aprobado.
Two active standards
- SKVFS 2020:9 (current)
The cloud-based Kontrollsystem standard — no hardware required, and the standard Skatteverket wants new deployments to use. If you're building or buying new, there's no reason to go the hardware route. (How fiskaly is certified against both standards is covered on the platform page → — this page is about what the law requires, not about us.)
- SKVFS 2009:2 (legacy)
The hardware-based Kontrollenhet standard — a physical control unit per register. It's still valid and still supported for existing setups. If you've inherited a 2009:2 setup from an acquisition or legacy integration, it's still compliant — you don't need to rip it out overnight.
Certification requirements
- Get your integration tested and working
Test against whichever certified Kontrollsystem/Kontrollenhet you're using. (If that's us, the technical steps are on the Tax Compliance System page →.)
- Submit a self-declaration to Skatteverket
Confirm your POS meets the requirements. This is a known, defined process — not a blank page — but it's yours to file, not your vendor's.
- Conseguir que tu caja registradora aparezca en el listado de Skatteverket
Una vez declarado, tu modelo de caja registradora aparece en el listado de Skatteverket de cajas registradoras declaradas. Esto tiene que ocurrir antes de que tus clientes se pongan en marcha. Un aviso importante — Suecia aplica un régimen de autodeclaración, así que no hay una decisión de aprobación que esperar, pero el paso de declaración y listado tiene su propio plazo, que la rapidez de la integración no puede acortar. Reserva tiempo real para ello.
What happens if you skip this
Skatteverket can audit cash register compliance directly, and an uncertified or non-compliant system is a liability for both the POS vendor and the merchants using it — not a theoretical one. If you're already selling into Sweden without a certified control system in place, that's worth fixing before it becomes an audit finding rather than a proactive project.
Frequently asked questions
Yes — Kassalagen's reporting requirements aren't limited to cash transactions. Card and digital payments through a POS still need to be logged and reported.
You can still deploy against 2009:2, but there's no upside to choosing hardware over cloud for a new build. Most vendors starting fresh go straight to the cloud-based standard.
You do, since you're the one certifying your own POS application. A good provider gives you the technical documentation and guidance, but the filing itself is yours.
