Cash register, cash register or cash register for sole proprietors: what to choose for entrepreneurs in 2026 by tax groups

Entrepreneurs who are just starting out often wonder whether they need to use a cash register, RRO or PRRO. The answer to this depends on:

• taxation groups
• method of accepting payments
• type of activity

In 2026, the use of a cash register — either a traditional cash register (RRO) or a software-based cash register (PRRO) — is mandatory for all individual entrepreneurs in groups 2–4, as well as for entrepreneurs on the general taxation system, if they carry out payment transactions. Only individual entrepreneurs in group 1 and those who accept payments exclusively by bank details — a direct account-to-account IBAN transfer — may operate without an RRO.

In this article, we explain the legal requirements for individual entrepreneurs regarding the use of an RRO or PRRO.

H2 RRO and PRRO in 2026: what you need to know

In 2026, the rules for using cash registers and payment terminals for sole proprietors became more structured, and control over settlement transactions became stricter. To avoid fines and misunderstandings with the tax authorities, it is important for entrepreneurs to understand in advance when a cash register is mandatory and when it is possible to work without one.

RRO and PRRO: features

Classic registrar of payment transactions

RRO (a cash register) — is a classic cash register that works autonomously or with a connection to a central database. It allows you to print only paper receipts for customers.
Such devices have a limited service life and require regular maintenance and periodic repairs.

PRRO or software cash register

The Law of Ukraine on Cash Registers allows the use of software-based payment transaction registers (PTRs) on an equal footing with traditional cash registers. They are becoming increasingly popular among entrepreneurs in many areas of activity due to their lower cost, ease of implementation and ease of use.

Key differences between cash registers and payment terminals

The main difference between a classic cash register and a software cash register lies in the format of implementation and the method of interaction with the fiscal system.

A classic cash register is a physical device with built-in fiscal memory that requires:

• purchase and registration of equipment;
• regular maintenance;
• replacement of fiscal modules;
• printing of paper receipts.

PRRO is a software solution that can be installed on a smartphone, tablet, or computer, or run in the cloud. It:

• No need to purchase a cash register;
• Generates electronic receipts;
• Transfers data to the State Tax Service via the Internet;
• Easily scalable and integrates with payment services.

For most sole proprietors in 2026, PRRO is a more flexible and cost-effective alternative to the classic RRO.

When PRRO fully replaces classic RRO

In 2026, software-based cash registers will completely replace traditional cash registers in most business scenarios, particularly if the entrepreneur:

• accepts payments by card, online, or through payment services;
• operates in e-commerce, services, or delivery;
• has multiple points of sale or mobile cashiers;

The PRRO is a full replacement for the RRO, provided there is stable internet access and compliance with the requirements for fiscalization of transactions. Exceptions usually apply to specific areas or offline working conditions, where the classic RRO may remain more appropriate.

What technical and legal changes will be in effect in 2026?

In 2026, updated requirements will come into effect for cash registers and payment terminals, which entrepreneurs should take into account:

Fiscal receipt form. The receipt must comply with the approved format, contain a complete list of mandatory details, and correctly reflect the payment method. Errors in the receipt form may be considered a violation.

Barcodes and QR codes. Electronic PRRO receipts must contain a QR code for verification of fiscalization through the State Tax Service services. This simplifies control for both the customer and the tax authority.

Cloud PRROs. In 2026, cloud PRRO solutions are actively used. They are subject to the following requirements:

• continuous data transfer to the fiscal server;
• storage of receipts and reports;
• data protection and service stability.

Electronic receipts instead of paper ones. PRRO allows you to send receipts to customers in electronic format (QR code, messenger, email), which meets modern requirements and reduces business costs.

In general, in 2026, legislation will encourage sole proprietors to switch to software solutions, making PRRO the main fiscalization tool for small and medium-sized businesses.

Who is required to use cash registers/cashless registers in 2026?

The requirements for using a cash register or a payment transaction recorder for a sole proprietorship depend on the taxation group, type of activity, and method of payment. In this section, we’ll look at who needs a cash register and who can operate without one.

1️⃣ Individual entrepreneur of group 1 in 2026

Group 1 sole proprietors have a special status in terms of the use of cash registers and payment terminals, as the law provides them with the most simplifications. In 2026, it will be important to understand the conditions under which this exemption applies and whether the methods of accepting payments affect it.

Individual entrepreneurs in Group 1 of the single tax regime have the right not to use cash registers or payment terminals in 2026, provided they meet the criteria for remaining in this tax group (type of activity, income level, no hired employees). This is expressly provided for in paragraph 296.10 of the Tax Code of Ukraine.

The exemption from cash registers/payment terminals applies regardless of the method of payment acceptance. An entrepreneur may accept both cash and non-cash payments without using a cash register, without violating the requirements of the law, if it does not go beyond the scope of activities permitted for group 1.

2️⃣ Individual entrepreneur of group 2 in 2026

In 2026, sole proprietors in Group 2 will be required to use cash registers or payment terminals when conducting settlement transactions. This obligation does not depend on the type of activity, business format, or income volume and is provided for, in particular, by paragraph (b) of Article 2 of the Law of Ukraine “On the Use of Cash Registers.”

Cash registers or payment transaction recorders are mandatory if the entrepreneur:

• accepts cash payments from customers;
• accepts card payments via POS terminals;
• accepts non-cash payments via financial companies and payment intermediaries (NovaPay, LiqPay, WayForPay, etc.);
• receives funds with payment codes 2924, 2650, 2654, which indicate settlement transactions in the account statement and are subject to fiscalization.

In these cases, the entrepreneur is obliged to issue a fiscal receipt in paper or electronic form.

The use of cash registers/cashless registers is not mandatory if:

• The sole proprietor provides remote services (online courses, consultations) with exclusively remote payment without the use of payment services;
• payment is made through Ukrposhta;
• the client transfers funds directly from their account to the entrepreneur’s account via IBAN (bank → bank) without the involvement of payment intermediaries.

In such cases, there is no settlement transaction within the meaning of the Law on Cash Registers.

In 2026, the general rules for the application of cash registers/payment terminals for sole proprietors in Group 2 will not change significantly, but control over non-cash payments through financial companies will be tightened. Tax practice more clearly interprets payments through payment intermediaries as settlement transactions, which effectively makes PRROs a mandatory tool for most sole proprietors in Group 2.

3️⃣ Individual entrepreneur of group 3 in 2026

In 2026, sole proprietors in Group 3 will be required to use cash registers or payment terminals when conducting settlement transactions. This obligation does not depend on the taxation system, but on the format of interaction with the customer and the method of accepting payment.

Cash registers or payment terminals are required if the entrepreneur:

• provides goods or services during personal contact with the customer (retail trade, salon services, public catering, etc.);
• accepts cash;
• receives payment via a POS terminal or payment services;
• conducts online trade with acceptance of payments by cards or through payment intermediaries.

In these cases, the customer must be issued a fiscal receipt in paper or electronic form.

The cash register/payment terminal is not applicable if:

• services are provided entirely remotely, and payment is made online without physical contact with the client (online courses, consultations);
• the entrepreneur receives payment for services through job search platforms or service marketplaces, where there is no classic settlement transaction;
• funds are transferred directly to the entrepreneur’s IBAN account without the involvement of payment services.

4️⃣ Individual entrepreneur of group 4 in 2026

In 2026, sole proprietors in Group 4 will not be required to use cash registers or payment terminals if their activities are not related to settlement transactions. Provided that payment is received exclusively in non-cash form — by bank transfer to the entrepreneur’s current account — the use of cash registers is not mandatory.

Cash registers or payment terminals become mandatory if individual entrepreneurs in Group 4:

• accepts cash from buyers or counterparties;
• receives payment by payment cards through a POS terminal;
• uses payment services or financial intermediaries that perform settlement transactions.

In such cases, the entrepreneur is obliged to fiscalize each transaction and issue a fiscal receipt.

The use of a cash register/payment terminal is not required if:

• All payments are made exclusively by bank transfer (IBAN → IBAN).
• Cash and card payments are not accepted.
• Payments are not made through payment services or financial companies.

Under such circumstances, there is no settlement transaction within the meaning of the law.

5️⃣ Individual entrepreneur under the general system

In 2026, sole proprietors who are subject to the general taxation system will be required to use cash registers or payment terminals in all cases of settlement transactions. The law does not provide for any exemptions or simplifications regarding the use of cash registers for such entrepreneurs.

Cash registers or payment terminals are mandatory if the sole proprietor:

• accepts cash;
• accepts payment cards via POS terminals;
• uses payment services, financial companies, or intermediaries;
• conducts online commerce with payments accepted from individuals.

In each of these cases, the entrepreneur is required to issue a fiscal receipt to the buyer in paper or electronic form.

For sole proprietors under the general taxation system, there are no exceptions to the use of cash registers/payment terminals. If a transaction falls under the definition of a settlement transaction, it is subject to mandatory fiscalization regardless of the type of activity or amount of payment.

How to quickly understand whether you need an RRO or PRRO

Common mistakes made by individual entrepreneurs when using an RRO/PRRO

• Confusion over payment formats. Entrepreneurs often fail to issue fiscal receipts for payments made through online acquiring or payment intermediaries such as LiqPay, WayForPay, and others, assuming these payments are standard cashless transfers. However, under the law, such payments are treated as payment transactions, so fiscalization is mandatory.
• Failure to issue a fiscal receipt to the customer. This is a common violation that may result in fines of up to 150% of the value of the service or goods. With Vchasno.Kasa, you can conveniently send electronic receipts to your customers via SMS or Viber.
• Errors in receipt details. Incorrectly filling in the mandatory fields of a receipt may be treated the same as failing to issue one. A modern PRRO helps prevent such mistakes. In addition, receipts can be used to collect customer feedback, helping businesses improve their service.
• Understating the value of goods. Recording a transaction in the receipt for less than the actual amount is also subject to financial penalties.
• Using an expired or unregistered RRO.

New rules and penalties in 2026

From October 1, 2023, Ukraine has fully reinstated fines for violations of the rules for using cash registers (CR/PR). The sanctions were temporarily suspended at the beginning of the full-scale invasion, but tax control in this area has now been fully restored.

Financial sanctions are applied if an entrepreneur:

• does not use a cash register or payment terminal when conducting settlement transactions;
• conducts transactions for an incomplete amount (understating the cost of goods or services on the receipt);
• does not issue a fiscal receipt to the buyer.

The amount of fines is as follows:

• 100% of the cost of the goods or services sold — for the first violation;
• 150% of the cost — for each subsequent violation.

Separate penalties are provided for:

• use of an expired or unregistered cash register;
• failure to issue or provide an electronic fiscal receipt;
• incorrect completion of mandatory details on the receipt.

🆕 Changes to the fiscal receipt form

The fiscal receipt must comply with the approved form and contain all mandatory details. Errors in the name of the product, amount, tax rates, or the absence of mandatory details may be equated to failure to issue a receipt and be grounds for a fine.

How to choose between RRO and PRRO in 2026

In 2026, entrepreneurs will be able to choose between a classic cash register (CR) and a software cash register (SCR). Both options are legal, but differ in cost, format of use, and maintenance requirements.

When is PRRO more profitable?

Software cash registers are the optimal solution for most sole proprietors, especially if the business:

• works in the service sector, e-commerce, or retail without a complex product range;
• conducts mobile sales or accepts online payments;
• wants to minimize start-up and regular expenses;
• needs integration with CRM, accounting systems, and payment terminals.

The Vchasno.Kasa PRRO system integrates with over 70 popular systems, supports various payment terminals, and allows you to manage cash registers via a web account, mobile app, or device manager.

Algorithm for selecting a cash register/payment terminal for sole proprietors

In most cases, in 2026, a PRRO is a more flexible, cost-effective, and convenient solution for individual entrepreneurs, while a traditional RRO remains an option for businesses with specific requirements.

Conclusions

In 2026, the rules for using RRO/PRRO by individual entrepreneurs have become clearer and stricter in terms of control. To avoid fines, individual entrepreneurs should already:

• check whether their payment transactions are subject to mandatory fiscalization;
• register an RRO or PRRO before starting sales;
• check that fiscal receipts are generated correctly;
• ensure stable data transmission to the State Tax Service.

Timely preparation and the right choice of cash register format will allow entrepreneurs to operate legally, without financial risks or unnecessary inspections.

For most entrepreneurs, a modern software-based PRRO is sufficient, so it is worth choosing a solution that not only helps comply with legal requirements but also simplifies daily operations. Vchasno.Kasa combines fiscalization, sales analytics, income limit tracking for individual entrepreneurs, integrations, and expert consultations in one service.