
Fiscalization requirements can be overwhelming, but understanding the basics can make a big difference. To start, fiscalization is mandatory for businesses with annual revenues exceeding €100,000.
Fiscalization involves installing a fiscalization device, which is a hardware component that tracks and records all transactions. This device must be connected to the cash register and other payment systems.
The fiscalization device must be certified by the relevant authorities, ensuring it meets the required standards. This certification is a crucial step in the fiscalization process.
Businesses must also appoint a fiscalization administrator, responsible for managing the device and ensuring compliance with regulations.
What Is Fiscalization?
Fiscalization is a system designed to combat tax evasion and improve transparency in business operations by mandating the use of certified devices, software, or procedures that securely document sales data.
Fiscalization requirements vary by country, but they typically include the use of fiscal devices like cash registers or software integrated with tax authorities. This helps create a more secure and reliable tax ecosystem.
For more insights, see: Global Minimum Corporate Tax Rate
The use of fiscal devices is a key component of fiscalization, as it ensures that all financial transactions are accurately recorded and reported for tax purposes. This helps to prevent tax evasion and promotes a fair tax environment.
Fiscalization also requires the issuance of compliant receipts, which are receipts that meet the specific requirements set by the government. These receipts are an essential part of the fiscalization system, as they provide a clear record of transactions for both businesses and tax authorities.
Here are some key aspects of fiscalization:
- The use of fiscal devices like cash registers or software integrated with tax authorities.
- The issuance of compliant receipts.
- The real-time or periodic transmission of transaction data to governmental systems.
These measures help to create a more secure and reliable tax ecosystem, benefiting both businesses and regulatory bodies.
Increases Transparency
Fiscalization systems provide real-time monitoring for tax authorities, allowing them to track transactions in an instant.
This increased visibility helps build trust in the system, ensuring that everyone involved is held accountable.
Fiscalization enables tax authorities to access transaction data promptly, giving them a clear picture of financial activities.
By doing so, fiscalization helps prevent tax evasion and promotes a fair market environment.
Fiscalization systems record transactions securely and tamper-proof, preventing any manipulation of data.
This secure recording process ensures that all taxable revenues are accurately reported.
Take a look at this: Global Minimum Tax on Billionaires
Technical Approaches
The technical implementation of fiscal law follows one or more of the following technical aspects: hardware-based fiscal implementation, software-based fiscal implementation, and special fiscal requirements with different implementations.
In some cases, additional technical approaches are also considered, which are mostly related to these basic implementations.
The technical implementation itself is also forced by the fiscal law, adding an extra layer of complexity to the process.
Here are the main technical aspects of fiscalization:
- Hardware-based fiscal implementation
- Software-based fiscal implementation
- Special fiscal requirements with different implementations
If something goes wrong with your internet connection, you have five working days to fiscalize the eInvoice, giving you a bit of a safety net in case of technical issues.
Key Identifiers
Key Identifiers play a crucial role in the fiscalization process. To ensure security and compliance, companies generate unique identifiers, including the RS (Receipt ID) and ZOI (Protection ID).
These identifiers are essential for transaction signing and must be included on receipts. Receipts also require the cashier's signature and the business's tax number.
Discover more: F I S C a L

Official certificates are mandatory for transaction signing, and they can be either demo or production certificates. Only registered businesses can obtain these certificates.
Here are the key identifiers involved in the fiscalization process:
- RS (Receipt ID): A company-generated unique identifier.
- ZOI (Protection ID): Another company-generated identifier ensuring security.
- EOR (Unique Receipt Identifier): Issued by fiscal authorities during authorization.
These identifiers help ensure compliance with regulations like the Tax Certification of Invoices Act, VAT Act, and Tax Procedure Act.
Traditional Approach
The traditional approach to fiscalization has its drawbacks. Traditional fiscalization solutions rely on cash registers equipped with fiscal devices that store data about fiscal transactions.
These devices have gained data transmission capabilities, allowing revenue authorities to receive information without manual intervention. However, they come with high costs.
Expensive hardware and deployment and maintenance costs burden taxpayers. This can be a significant financial strain.
Aging designs struggle with modern demands, leading to efficiency issues. This can cause problems for businesses trying to keep up with changing regulations.
Complex certification and maintenance processes limit market entry and increase long-term costs. This can make it difficult for new businesses to enter the market.
Here are some of the key drawbacks of traditional fiscalization solutions:
- High Costs: Expensive hardware and deployment and maintenance costs burden the taxpayers.
- Efficiency Issues: Aging designs struggle with modern demands.
- Closed Ecosystems: Complex certification and maintenance processes limit market entry and increase long-term costs.
Tools and Solutions
If you're looking for tools and solutions for fiscalization, there are several options available. You can find companies that offer the necessary hardware and software to meet the government's requirements, such as DDD Invoices, which provides a fiscalization and e-invoicing solution.
One of the benefits of choosing DDD Invoices is that it allows you to send and receive e-documents worldwide without worrying about local compliance issues. Its API automatically fills in your invoice data and sends the invoice to the proper authorities, letting you focus on your core business processes.
You can also consider using Point of Sale (POS) software, which plays a crucial role in transmitting fiscal data directly to tax authorities or undergoing a rigorous certification process. This method is adopted by nations like Albania, France, and Norway.
To meet the requirements of fiscalization in Croatia, you will need a PC computer, an integrated POS system or a compatible mobile device, an internet connection, a fiskalna blagajna (fiscal cash desk program), and fiscal cash desk certification.
Additional reading: Better than Cash Alliance
Here are some key requirements for fiscalization in Croatia:
- PC computer, integrated POS (point-of-sale) system or compatible mobile device
- Internet connection
- Fiskalna blagajna (fiscal cash desk program)
- Fiscal cash desk certification
Keep in mind that it's essential to evaluate multiple options before settling on one, and to ensure that the company offers a solid warranty and maintenance service. You can also ask for referrals from other business owners to find a reliable company.
Country-Specific Requirements
In Germany, fiscalization is governed by regulations requiring the use of certified Technical Security Elements (TSE) to secure point-of-sale (POS) transactions. Retailers may choose between hardware-based or cloud-based fiscalization.
Fiscal printers in Bulgaria send transaction data in XML format every 5 minutes, and tax authorities must respond within 60 seconds. Device certification is also mandatory, with fiscal printers requiring homologation by the Bulgarian Metrology Institute.
Here's a brief overview of the key aspects of fiscalization in various countries:
In Croatia, business owners must report every issued invoice for delivered goods and services paid by cash, credit cards, debit cards, or other similar means of payment, including those made via bank transfer or online platforms like PayPal.
Law by Country
In Belgium, the fiscalization system applies to the HoReCa sector, requiring businesses with on-premise sales above EUR 25,000 to use a fiscalized cash register system.
Retail businesses are not subject to fiscalization in Belgium. The GKS system consists of a certified POS system, a Fiscal Data Module (FDM) for secure transaction storage, and a Virtual Smart Card (VSC).
In Bulgaria, fiscal printers send transaction data in XML format every 5 minutes, and tax authorities must respond within 60 seconds. This data flow is a key aspect of Bulgaria's fiscalization system.
Fiscal printers in Bulgaria require homologation by the Bulgarian Metrology Institute, and EU-approved devices are pre-certified. Additionally, receipts must include a USN number and QR code.
In Croatia, all invoices for delivered goods and services that are paid by cash, credit cards, debit cards, or other similar means of payment must be fiscalized. This includes payments made through services like PayPal.
If this caught your attention, see: History of the English Fiscal System
Business owners in Croatia are no longer exempt from fiscalization for invoices paid via bank transfers, which was previously the case. This change is effective as of September 1, 2025.
The following businesses are exempt from fiscalization in Croatia:
- Taxpayers without an obligation to issue bills for sold goods and services according to the Zakon o PDV-u (Law on VAT)
- Taxpayers without an obligation to issue bills for sold goods and services according to the Opći porezni zakon (General tax law)
- Taxpayers of porez na dohodak od imovine (property income tax)
- Taxpayers of porez na dohodak od drugog dohotka (income tax on other income)
Germany
In Germany, retailers must use certified Technical Security Elements (TSE) to secure point-of-sale (POS) transactions.
Fiscalization in Germany is governed by regulations requiring the use of certified TSE to secure POS transactions. Retailers may choose between hardware-based or cloud-based fiscalization, and mixing different TSE types within a business is allowed.
POS software does not require certification, but both the POS and TSE must be registered with tax authorities.
All transactions must be recorded immediately and unalterably after completion, with the TSE generating a unique transaction number, signing each transaction, maintaining a signature counter, and storing data in secure memory with a valid timestamp.
German fiscal law defines rules for receipt elements, payment types, and data export formats (DsFinV-K), mandating that every business-relevant transaction be signed and stored.
Transactions to be Fiscalized in Croatia
In Croatia, business owners must report every issued invoice for delivered goods and services that are paid by cash, credit cards, debit cards, or other similar means of payment. This includes payments made through services like PayPal, Google Pay, Stripe, and similar platforms.
The Fiscalization Act, effective September 1, 2025, has changed the previous exemption for bank transfers, making payments through PayPal, Google Pay, Stripe, and similar platforms subject to fiscalization. This means business owners must now report these transactions as well.
To meet the government's requirements, business owners can purchase the necessary tools from various companies, but it's essential to thoroughly evaluate multiple options before making a decision. Be sure to look for a company that offers a solid warranty and maintenance service.
Here is a list of payment methods that must be fiscalized in Croatia:
- Cash
- Credit cards
- Debit cards
- Other similar means of payment
- Bank transfers (including PayPal, Google Pay, Stripe, and similar platforms)
Croatia-Specific Requirements
In Croatia, fiscalization is a procedure used by the tax administration to monitor transactions and ensure proper calculation of value-added tax. Fiscalization is done over the internet at the time the transaction occurs.
To meet the requirements of fiscalization, you will need a PC computer, integrated POS system, or compatible mobile device, an internet connection, the Fiskalna blagajna (fiscal cash desk program), and fiscal cash desk certification.
Here are the specific requirements needed for fiscalization in Croatia:
- PC computer, integrated POS (point-of-sale) system or compatible mobile device
- Internet connection
- Fiskalna blagajna (fiscal cash desk program)
- Fiscal cash desk certification
What Does Mean in Croatia?
In Croatia, fiscalization is a procedure used by the tax administration to monitor transactions and ensure proper calculation of value-added tax (PDV). It applies to all types of payments, including electronic and cashless channels.
Fiscalization is done over the internet at the time the transaction occurs. This provides business owners with sales insight in real-time, allowing them to monitor their daily traffic and quickly check business reports.
To be fiscalized, business owners must report every issued invoice for delivered goods and services that are paid by cash, credit cards, debit cards, or other similar means of payment. This includes payments made through services like PayPal, Google Pay, Stripe, and similar platforms.
Here's a breakdown of the types of payments that require fiscalization:
- Cash
- Credit cards
- Debit cards
- Other similar means of payment
The new Fiscalization Act, effective September 1, 2025, extends fiscalization to invoices paid via bank transfers, making payments through PayPal, Google Pay, Stripe, and similar platforms subject to fiscalization.
Businesses in Croatia
In Croatia, businesses have specific requirements to meet when it comes to fiscalization. Fiscalization is a procedure used by the tax administration to monitor transactions and ensure proper calculation of value-added tax (PDV).
To meet the requirements of fiscalization, businesses will need a PC computer, integrated POS system, or compatible mobile device, as well as an internet connection. They will also need to install the Fiskalna blagajna (fiscal cash desk program) and obtain fiscal cash desk certification.
Businesses must report every issued invoice for delivered goods and services that are paid by cash, credit cards, debit cards, or other similar means of payment. This includes payments made via bank transfers, which were previously exempt.
However, there are some businesses that are exempt from fiscalization in Croatia. These include taxpayers without an obligation to issue bills for sold goods and services according to the Zakon o PDV-u (Law on VAT) or the Opći porezni zakon (General tax law).
Here are some examples of businesses that are exempt from fiscalization:
To find the tools and equipment needed for fiscalization, businesses can explore various companies that offer hardware and software solutions. It's essential to thoroughly evaluate multiple options and ensure that the chosen company offers a solid warranty and maintenance service.
General Requirements and Considerations
Digital signing of transactions is a must, with records stored in an Electronic Journal (EJ) for audits.
For retailers in Norway, data must be available in SAF-T format per store, terminal, or network. This ensures transparency and accountability in the retail sector.
In Bulgaria, fiscal printers send transaction data in XML format every 5 minutes, with tax authorities required to respond within 60 seconds.
Fiscal printers in Bulgaria require homologation by the Bulgarian Metrology Institute, with EU-approved devices being pre-certified.
A SIM card is required for tax communication in Bulgaria, ensuring seamless data exchange between fiscal printers and tax authorities.
Retailers must comply with sales registration, fiscal receipt issuance, and periodic reporting in Bulgaria, ensuring transparency and regulatory compliance.
Here are the key requirements for fiscalization:
- Digital signing of transactions
- Data availability in SAF-T format
- Daily reporting of transactions
- Fiscal printer functionality
- Conformity declarations from suppliers
What Does Look Like in Europe?
Fiscalization in Europe varies significantly from country to country, reflecting diverse legal frameworks, technical infrastructures, and enforcement approaches. This means that each country has its own unique way of implementing fiscalization.
Some European countries, like Germany and Austria, require physical devices to be installed at the point of sale for fiscalization. For instance, Germany introduced its fiscalization system in 2020 through the Kassensicherungsverordnung (Cash Register Security Ordinance, or KassenSichV), which mandates that all cash registers must be equipped with a certified technical security system (TSS).
In contrast, countries like Spain and Italy are moving towards software-based fiscalization. Spain's fiscalization framework focuses on pure cloud fiscalization, while Italy is currently undergoing a move towards software-based fiscalization.
Other countries, such as France, have taken a software-centric approach to fiscalization. France's 2018 regulation requires certified cash register systems.
Here's a breakdown of the fiscalization frameworks in key European markets:
Each of these approaches has its own unique requirements and regulations, making it essential for businesses to understand the specific fiscalization framework in their country.
Frequently Asked Questions
What is a fiscalized invoice?
A fiscalized invoice is a registered transaction that ensures accurate taxation and record-keeping for business-to-business sales. It's a mandatory process for companies selling goods or services to other businesses.
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