The Slovak Tax Office warns business owners to check their cash registers, printers and eKasa receipt settings. Incorrect receipt printing, missing Slovak characters or wrong data on a receipt may lead to tax fines in Slovakia.
The Slovak Financial Administration has warned entrepreneurs to check the settings of their cash registers and receipt printers. Every cash register receipt must correctly show all characters of the Slovak alphabet, including Slovak diacritics such as á, č, ď, é, í, ľ, ň, ó, ô, š, ť, ú, ý, ž.
This is important for every business owner in Slovakia who uses a cash register, eKasa, VRP or a receipt printer.
If your receipt is printed without Slovak diacritics, with wrong characters, missing symbols or incorrect data, your business may face a fine during a tax inspection.
Tax Office Inspections in Slovakia Are Becoming More Active
In 2026, the Slovak Financial Administration continues to actively inspect businesses using eKasa and cash registers. One of the most common problems is incorrect or missing sales registration.
According to the material published by BUH.SK, in March 2026 alone, the tax authorities carried out 1,594 eKasa inspections, found 382 violations, and imposed fines totaling 273,880 €. The violation rate was almost 24%.
This means that almost every fourth inspected business had some kind of problem with eKasa, receipt issuing or sales registration.
Cash Register Receipt Requirements in Slovakia
A cash register receipt in Slovakia must contain correct and readable information.
The receipt must show the same data that is sent to the Financial Administration system. This means that the printed receipt and the electronic data sent through eKasa must match.
Business owners should check:
- whether the receipt prints Slovak letters correctly;
- whether product and service names are displayed correctly;
- whether Slovak diacritics are missing;
- whether strange symbols appear instead of Slovak letters;
- whether the printer is compatible with the cash register or VRP;
- whether the printed receipt matches the data sent to the Financial Administration.
If your receipt shows incorrect characters, this may be treated as a problem during a tax inspection.
Cash Register Printer Must Support Slovak Diacritics
Under Slovak rules, the printer connected to a cash register must be able to print all characters of the Slovak alphabet, including punctuation marks.
This is especially important if you use:
- eKasa;
- VRP — virtual cash register;
- online cash register;
- POS system;
- receipt printer;
- external cash register software.
If the printer does not support Slovak diacritics, the receipt may not meet legal requirements.
For example, if the name of a product or service contains Slovak characters but the receipt prints them incorrectly, the business owner should check the printer settings or contact the cash register provider.
Tax Fines for Incorrect Cash Register Receipts in Slovakia
If a cash register receipt does not meet legal requirements, the business owner may face a fine.
The fine can range from:
150 € to 6,500 €
If the entrepreneur uses a cash register that cannot print all characters of the Slovak alphabet at all, including punctuation marks, the minimum fine may be:
1,500 €
For a small business, café, shop, beauty salon, restaurant or service provider, this can be a serious financial risk.
That is why it is better to check your cash register and receipt printer now, before a tax inspection happens.
Most Common eKasa Problems in Slovakia
Many business owners think that problems with eKasa happen only when they do not issue a receipt. But in practice, there can be more situations that create risk.
Common problems include:
- receipt was not issued;
- payment was not recorded in eKasa;
- receipt was printed with wrong or missing data;
- receipt does not show Slovak diacritics correctly;
- printer is not compatible with VRP;
- cash register settings are incorrect;
- staff members do not know how to use eKasa correctly;
- printed receipt does not match data sent to the tax authority.
BUH.SK previously highlighted that unregistered revenue — neevidovaná tržba — is one of the main reasons for fines in Slovakia. In the first quarter of 2026, there were 640 cases of unregistered revenue, and the average fine was 1,185 €.
Who Should Check Their Cash Register?
This warning is relevant for all entrepreneurs in Slovakia who accept payments and issue receipts.
It is especially important for:
- restaurants;
- cafés;
- food services;
- retail shops;
- beauty salons;
- hairdressers;
- repair services;
- small local businesses;
- self-employed persons;
- Ukrainian entrepreneurs in Slovakia;
- s.r.o. companies using eKasa or VRP.
Restaurants, cafés and food businesses are often among the most inspected sectors, but eKasa inspections can affect any business owner in Slovakia.
Why This Matters for Ukrainian Business Owners in Slovakia
Many Ukrainians in Slovakia open a živnosť or s.r.o. and start working with clients directly.
If your business accepts cash or card payments and must use eKasa, you need to make sure your receipt system is correct.
Even a technical mistake may create problems during an inspection.
For example:
- the receipt is printed without Slovak letters;
- the printer does not support Slovak characters;
- the data on the receipt does not match the data sent to eKasa;
- the staff forgets to issue a receipt;
- the business uses an unsuitable printer for VRP.
For a person who moved to Slovakia and is still learning the local rules, these details can be confusing. But the tax office will still expect the business to follow Slovak requirements.
How to Avoid Tax Fines for eKasa and Cash Register Receipts
To reduce the risk of fines, business owners should:
- issue a receipt for every payment;
- record every sale through eKasa;
- check whether the receipt prints correctly;
- test Slovak diacritics on the receipt;
- use a compatible printer;
- train employees who work with the cash register;
- compare printed receipts with eKasa records;
- contact a service technician if something is wrong;
- ask the cash register provider to check the settings.
Do not wait until a tax inspection finds the mistake.
It is much safer to test your cash register system in advance.
What to Do If Your Receipt Prints Incorrectly
If your cash register receipt prints strange symbols, missing letters or text without Slovak diacritics, you should act immediately.
Recommended steps:
- Check the cash register settings.
- Check the printer settings.
- Verify whether the printer supports Slovak characters.
- Test several receipts with Slovak letters.
- Contact your cash register provider.
- Contact a service technician if needed.
- Keep proof that the issue was checked and corrected.
If you use VRP, make sure your printer is supported and suitable for printing legally required receipts.
Need Help With eKasa, Accounting or Business in Slovakia?
BUH.SK helps Ukrainian entrepreneurs in Slovakia with business registration, accounting, tax returns, VAT reports and administrative obligations.
We can help you with:
- company registration in Slovakia;
- živnosť registration;
- accounting for s.r.o.;
- accounting for self-employed persons;
- eKasa and receipt-related questions;
- tax return preparation;
- VAT reports;
- business consultations.
If you are planning to open a company in Slovakia, you can also read more here:
Company registration in Slovakia — s.r.o.
Conclusion: Check Your Cash Register Before the Tax Office Does
Cash register and eKasa rules in Slovakia are important for every entrepreneur.
A receipt must be printed correctly, including Slovak diacritics. The data on the receipt must match the data sent to the Financial Administration system.
Mistakes may lead to tax fines from 150 € to 6,500 €, and in some cases the minimum fine may be 1,500 €.
If you use eKasa, VRP or a receipt printer, check your system now.
It is better to fix a technical problem today than to pay a tax fine later.
