Software cash register (PRRO) for an online store: who needs Checkbox and how to automate everything
Light SEO · Fiscalization without panic
Software cash register (PRRO) for an online store: who needs Checkbox and how to automate everything
The word "fiscalization" still scares store owners, although in 2026 it has long meant a cloud service that works on its own instead of a hardware cash register with receipt tape. We explain in plain words who needs a PRRO, how it integrates with a store and why customers only benefit from it.
PRRO
a software cash register instead of a "hardware" one
100%
automatic issuing of receipts
0 actions
from a manager after setup
The basics
What a PRRO is and who needs it
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A cash register in the cloud
A PRRO is a software register of payment transactions: instead of a physical device, a service (Checkbox, Vchasno.Kasa and others) generates the receipts and sends them to the tax authority and to the customer.
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When it is mandatory
The general rule: if you accept card or cash payments, fiscalization is mandatory for most sellers. The details depend on your tax group and payment methods – it is worth settling this question with your accountant once.
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The cost of ignoring it
Fines for selling without receipts are calculated from the transaction amounts and quickly outweigh any "savings" on the service. Plus, test purchases by the tax authority still happen.
How it works in a store
Automation: the receipt generates itself
01
The customer pays on the website
Online payment through acquiring goes through as usual – nothing changes for the customer.
02
The platform sends the data to the PRRO
The store's integration with Checkbox generates the fiscal receipt automatically at the moment of payment. The manager does nothing.
03
The receipt goes to the customer and to the State Tax Service
The customer receives an electronic receipt by e-mail or in a messenger, and the tax authority gets its copy. That's it – the transaction is closed in line with the law.
An underrated side bonus: an automatic fiscal receipt signals "everything here is official". For a customer hesitating between you and a "seller from Instagram", this is an argument in your favor. This article is an overview and does not constitute tax advice – check your specific situation (tax group, limits, payment methods) with your accountant.
Fiscalization in one day – and off your mind for good
We will connect a PRRO (Checkbox or an alternative) to your store, link it with payments and test the receipts with a real payment. After that the system works on its own – you simply sell.
📝 Connect a PRRO to your store
Free consultation. Your accountant will advise on the tax group and limits – we will handle all the technical side