Sending in the background
The receipt is saved and printed immediately. The sale is sent to EET in the background, so the customer doesn't wait.
EET 2.0
SuperKasa can send your sales to EET 2.0, the Czech electronic sales registration. On this page we describe how the POS does it. What exactly you must register, and from when, is for the Financial Administration (Finanční správa), the Czech tax authority, to tell you.
Important: The information on this page is not legal or tax advice. Whether sales registration applies to you, from when and which payments you register – check on eet.gov.cz, on financnisprava.cz or with your tax adviser or accountant.
Dates according to the Financial Administration
According to eet.gov.cz (as of 21 October 2026): the EET 2.0 system is ready for businesses from 1 November 2026 and regular sales registration begins on 1 January 2027. You can find the current schedule on eet.gov.cz.
What the POS does for you
Internet outage
When the connection doesn't work, the POS retries sending by itself at increasing intervals. You can keep selling.
Overview in the status bar
The colour of the POS status bar shows whether everything has been sent, something is waiting or an error has occurred. You won't miss unsent sales.
All payment methods
The POS registers the sale for the whole receipt – paid in cash, by card, by QR payment or a combination. Voids and refunds are registered as negative sales.
Verified response
The POS accepts a confirmation from EET only with a valid signature of the Financial Administration. Otherwise it sends the sale again.
Certificate monitoring
The POS warns you 3 weeks in advance that your POS certificate is about to expire. It cannot renew it automatically yet – you generate and upload a new certificate by hand.
Training and live mode
- Training mode – for the first 10 days and until you switch over. Receipts are marked as training receipts and are never sent to live EET.
- Test environment – you can try the EET connection in the Financial Administration's test environment (Playground) with a test certificate.
- Live mode – only with a paid licence and your own POS certificate. Before switching, you go through a checklist (company details, certificate, verified connection).
What you arrange yourself
- Check your obligationsOn eet.gov.cz or with your accountant, find out whether and from when you register sales.
- Log in to DIS+DIS+ is the tax authority's online data box on the MOJE daně (My Taxes) portal. There you enter a recording unit – typically your shop.
- Generate a POS certificateFrom DIS+ you go to the portal of the CA EET certification authority, where you generate and save the certificate free of charge.
- Upload the certificate to the POSIn Admin → EET 2.0 you upload the certificate, fill in the recording unit number and verify the connection.
Steps according to eet.gov.cz – “Jak začít evidovat” (How to start registering). Always follow the Financial Administration's current guide.
What SuperKasa cannot control
SuperKasa has no certification or approval from the Financial Administration – and we do not claim anything of the kind. We have tested sending in the Financial Administration's test environment. The business owner is responsible for meeting the registration obligations; the POS is a tool that helps with this.
Some of the smallest self-employed people (OSVČ) in the flat-rate tax regime can opt out of sales registration in the so-called EET OFF regime. The Financial Administration describes the conditions on eet.gov.cz.
The EET 2.0 rules may change. You will always find current information, dates and answers to frequently asked questions on eet.gov.cz.
Have a question about EET in the POS?
Give us a call and we'll show you how SuperKasa works with EET 2.0.