Many still believe that a cloud cash register is just a program existing in "virtual reality" without a physical device. But this is a misconception. A cloud online cash register is real fiscal control equipment with a fiscal memory device that stores data on every sale. It's just that it is located not in the office, but in a data center.

The ITSM 365 team, together with Renat Saitov, Product Director at ATOL Online, investigated how cloud cash registers actually work, which myths prevent businesses from choosing the right solutions, and why sales might stop when the internet goes down — even if the cash register is "in the cloud".

How a cloud cash register works: from payment to receipt

A cloud cash register integrates with the client's system — CRM, CMS, online acquiring, or the business's own platform. When a customer pays for a product on a website or in an app, transaction data is sent to the cash register via API. The fiscal memory device encrypts the information and sends it to the Fiscal Data Operator (FDO). The customer receives an electronic receipt — via email, messenger, or SMS.

In 80% of cases, cloud cash registers are used specifically in online stores. But it is important to understand: successful fiscalization depends not only on the availability of the cash register itself, but on the entire chain — from the website to the Federal Tax Service.

What happens if the internet goes down?

There are three scenarios that are often confused:

  • Problem in the sales channel. The customer cannot place an order or pay for it — this means the issue lies with the website, app, or acquiring system. The cash register has nothing to do with it.
  • The request does not reach the cash register. If the client's system transmitting payment data is unavailable, or the connection is broken, the cash register will not receive the information for fiscalization. The receipt will not be generated until the connection is restored.
  • The receipt is generated but not transmitted to the FDO. In this case, the cash register will continue to work. The fiscal memory device will store the receipts and send them to the FDO after the connection is restored. The provider has 30 days — if the internet does not appear, the tax authority will block the fiscal memory device.

To reduce the risk of sales stopping, you need to configure backup channels, queues, request retries, status monitoring, and API error monitoring. Cloud cash register service support can help with this.

Can a cloud cash register be used in an offline point?

No. A cloud cash register is an excellent solution for remote and automated sales, but it is not suitable for transactions at a physical retail point. According to Federal Law No. 54-FZ, immediately after receiving payment, the business is obliged to generate a paper receipt on a cash register installed and registered at the place of transaction.

The exception in the law applies only to remote, distributed, or automated sales — there the cash register can be registered at any address, and the receipt can be sent to the customer electronically. This is exactly what creates the opportunity to rent cloud cash registers.

Where else can cloud cash registers be used?

Regular payments, automatic deductions, tariff renewals — all this is more convenient to fiscalize automatically in the cloud. Federal Law No. 54-FZ also highlights special provisions for payments for utilities and telecommunications, where fiscalization of monthly transactions is possible.

If the transaction takes place "on the ground" but outside a stationary point, the business can choose — depending on conditions and legal requirements.