eInvoice for Microsoft Dynamics 365 Business Central in Slovakia

From 1 January 2027, Slovak companies will face a major change in invoicing. An electronic invoice will no longer be just a PDF document sent by email. Invoices will be issued, sent and received in a structured electronic format that information systems can process automatically.

For companies using Microsoft Dynamics 365 Business Central, this means preparing the ERP system for a new way of exchanging invoices electronically.

The good news is that Business Central already includes technologies for working with electronic documents. However, the Slovak eInvoice is not just about creating an XML file. The entire process needs to be addressed – from data in Business Central, through invoice validation and sending, to receiving, checking, approving and posting incoming invoices.

Read more »

SAPI-SK: One Standard API for All Digital Access Points

Starting on 1 January 2027, electronic invoicing (eInvoice) will become mandatory for selected business transactions in Slovakia. Companies and ERP vendors will need to exchange electronic invoices through the Peppol network.

For software vendors, this raises an important question:

Should an ERP system integrate separately with every Peppol Access Point, or is there a common interface?

The answer is SAPI-SK (Standardised Access Point Interface – Slovakia), a standardized communication interface designed to simplify integration between ERP systems and certified Peppol Access Points.

Read more »

Slovak eInvoice Solution for Older Microsoft Dynamics NAV Versions

The upcoming mandatory electronic invoicing (eInvoice) legislation in Slovakia will require companies to exchange invoices electronically in accordance with government regulations.

Many businesses, however, continue to rely on older versions of Microsoft Dynamics NAV that are stable, reliable, and fully support their daily operations.

If you are using:

• Microsoft Dynamics NAV 4.0
• Microsoft Dynamics NAV 5.0
• Microsoft Navision 2009
• or any other legacy version of Microsoft Dynamics NAV

there is no need to migrate immediately to Microsoft Dynamics 365 Business Central just to comply with the new eInvoice requirements.

Read more »

Update 27.6 for Microsoft Dynamics 365 Business Central 2025 Release Wave 2

The following link 5086070, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in April 2026. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Mandatory Electronic Invoicing in Slovakia from 2027

Slovakia is preparing the introduction of mandatory electronic invoicing for businesses. The new rules will gradually change the way companies issue, send, and receive invoices. An electronic invoice will no longer be just a PDF document sent by email, but a structured XML document that can be automatically processed by information systems.

What is an electronic invoice

Under the upcoming regulations, an electronic invoice will be created, sent, and received in a structured electronic format. Unlike a standard PDF or scanned document, it will contain data that information systems can process automatically without manual entry.

The European standard EN 16931 will be used, typically in the Peppol BIS 3 (UBL 2.1) format.

Important: Traditional PDF invoices will no longer be considered electronic invoices under the new rules. The key requirement will be the structured XML format.

When mandatory electronic invoicing will start

The implementation will take place gradually in several phases.

• 2025 – approval of the legislation
• 2026 – voluntary participation and system testing
• 2027 – mandatory electronic invoicing for domestic B2B and B2G transactions
• 2030 – extension to cross-border transactions within the EU

The year 2026 will be crucial for companies. It will be the time to review ERP or accounting systems, prepare integrations, and test the entire process before the mandatory launch.

Who will be affected

The obligation will mainly apply to domestic VAT payers when supplying goods or services within Slovakia. It will also affect invoice recipients, as companies will need to be able not only to issue electronic invoices but also to receive them.

• VAT payers involved in domestic B2B transactions
• issuance of invoices for goods and services
• receiving electronic invoices via a delivery service

When electronic invoicing will not be mandatory

There will still be some exceptions. Mandatory electronic invoicing will not apply, for example, to:

• sales to final consumers (B2C)
• certain VAT-exempt transactions
• simplified invoices up to 100 EUR, such as receipts from fiscal cash registers

How invoices will be sent

Electronic invoices will not be sent via regular email. Instead, they will be exchanged through delivery services operating within the Peppol network.

Companies will choose a certified provider, often referred to as a digital postman, who will ensure the secure sending and receiving of electronic invoices.

• secure delivery of electronic invoices
• integration with accounting or ERP systems
• automatic reporting of selected invoice data to the tax authority

What this means for ERP and accounting systems

Companies will need to verify whether their software supports the creation and processing of invoices in the Peppol BIS format, whether it includes communication with the Peppol network, and whether it allows invoice validation before submission.

Without proper validation, an invoice may be rejected before delivery. The quality of master data will also be critical, especially VAT numbers, addresses, partner identifiers, and tax codes.

How companies can prepare today

1. Contact your accounting or ERP system provider.
2. Verify support for the Peppol BIS / UBL format.
3. Select a suitable delivery service provider.
4. Check options for XML validation, import, and export.
5. Clean and update master data for business partners.
6. Test both sending and receiving of e-invoices before the mandatory launch.

Automatic reporting to the tax authority

The system will also include automatic reporting of selected invoice data to the Slovak tax authority. This does not mean full centralization of invoices, but rather the submission of specific data required for control and fraud prevention.

This reporting will technically be handled by the delivery service provider. For companies, this means that proper configuration and integration will be essential.

Summary

Electronic invoicing will become a major change for Slovak businesses from 2027. Creating a PDF invoice will no longer be sufficient. Companies will need to work with structured XML formats, use the Peppol network, and integrate their systems with a delivery service.

The best step companies can take today is to start preparing early. Verifying ERP capabilities, selecting the right partner, and testing processes during 2026 can significantly reduce the risk of problems once the obligation becomes effective.

If you need more information, please fill out the contact form or contact our sales department

Update 27.4 for Microsoft Dynamics 365 Business Central 2025 Release Wave 2

The following link 5078591, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in February 2026. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Update 27.2 for Microsoft Dynamics 365 Business Central 2025 Release Wave 2

The following link 5073765, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in December 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Update 27.1 for Microsoft Dynamics 365 Business Central 2025 Release Wave 2

The following link 5071096, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in Novemnber 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Update 26.6 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1

The following link 5068248, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in October 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

End of support - 2024 release wave 1, version 24.x

Microsoft Dynamics 365 Business Central Version 24 went end of life on the 7th of October, 2025. To ensure your installation is fully supported it is advised to update to version 25 or higher.

If you need more information, please fill out the contact form or contact our sales department.

Update 26.4 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1

The following link 5064779, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in August 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Implementation of e-invoice for Slovakia from January 1, 2027?

Update 26.3 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1

The following link 5063362, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in June 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Communication interface for connecting ERP systems with the courier company DELIVEO

Our company has prepared a communication interface for connecting ERP systems with the courier company DELIVEO. The prepared interface allows for the connection of customer data, shipments, delivery notes, tracking of shipment statuses, etc. This speeds up data exchange and at the same time maintains data consistency. This is another step towards increasing the efficiency and automation of company processes.

If you need more information, please fill out the contact form or contact our sales department

Update 26.1 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1

The following link 5059415, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in May 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Communication interface for connecting ERP systems with the courier company General Logistics Systems

Our company has prepared a communication interface for connecting ERP systems with the courier company GLS. The prepared interface allows for the connection of customer data, shipments, delivery notes, tracking of shipment statuses, etc. This speeds up data exchange and at the same time maintains data consistency. This is another step towards increasing the efficiency and automation of company processes.

If you need more information, please fill out the contact form or contact our sales department

Update 25.6 for Microsoft Dynamics 365 Business Central 2024 Release Wave 2

The following link 5056718, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in April 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. 

If you need more information, please fill out the contact form or contact our sales department

Communication interface for connecting OPTIFACTS

Our company has prepared a communication interface for connecting OPTIFACTS software with the accounting system. The prepared interface allows for the connection of customer data, accounting documents, price lists, promotional campaigns, etc. It speeds up the exchange and maintains data consistency between systems. This is another step towards increasing the efficiency of document exchange.

If you need more information, please fill out the contact form or contact our sales department.

End of support - 2023 release wave 2, version 23.x

Microsoft Dynamics 365 Business Central Version 23 went end of life on the 2nd of April, 2025. To ensure your installation is fully supported it is advised to update to version 24 or higher.

If you need more information, please fill out the contact form or contact our sales department.

Update 25.4 for Microsoft Dynamics 365 Business Central 2024 Release Wave 2

The following link 5052987, lists the cumulative updates that were released for Microsoft Dynamics 365 Business Central in February 2025. The cumulative update is a cumulative set of files that contains all the fixes that were released for Microsoft Dynamics 365 Business Central. If you need more information, please fill out the contact form or contact our sales department