
Where are we now?
In Slovakia, e-invoicing is about to move from a preparatory phase to a full, structured obligation, with a centralised model that will be managed by the tax administration through dedicated infrastructure. The system is part of the broader tax digitalisation strategy and is based on a standard electronic format compliant with the European standard EN 16931 (XML), with the aim of increasing transparency and control over transactions.
The obligation will enter into force on 1 January 2027 and will apply to all VAT-liable businesses for domestic B2B and B2G transactions. From that point on, it will no longer be possible to issue or receive invoices in paper or PDF format: only structured electronic invoices will be valid. The system includes a transition phase already in 2026, during which companies will be able to test sending and receiving e-invoices and prepare their ERP systems.
The architecture is based on a certified digital exchange network (often in a Peppol framework or via accredited providers), through which invoices are transmitted in standardised XML format and made available to the tax authority for control and reporting. For businesses, the Slovak model represents a structural change: it is not just about digitising the document, but about rethinking the entire invoicing flow in an automated, real-time compliant way. For those operating internationally, Slovakia clearly fits into the European movement towards mandatory, interoperable e-invoicing systems, aligned with the EU's ViDA initiatives.
A-Cube APIs for e-invoicing in Slovakia

Where are we now?
In Slovakia, e-invoicing is about to move from a preparatory phase to a full, structured obligation, with a centralised model that will be managed by the tax administration through dedicated infrastructure. The system is part of the broader tax digitalisation strategy and is based on a standard electronic format compliant with the European standard EN 16931 (XML), with the aim of increasing transparency and control over transactions.
The obligation will enter into force on 1 January 2027 and will apply to all VAT-liable businesses for domestic B2B and B2G transactions. From that point on, it will no longer be possible to issue or receive invoices in paper or PDF format: only structured electronic invoices will be valid. The system includes a transition phase already in 2026, during which companies will be able to test sending and receiving e-invoices and prepare their ERP systems.
The architecture is based on a certified digital exchange network (often in a Peppol framework or via accredited providers), through which invoices are transmitted in standardised XML format and made available to the tax authority for control and reporting. For businesses, the Slovak model represents a structural change: it is not just about digitising the document, but about rethinking the entire invoicing flow in an automated, real-time compliant way. For those operating internationally, Slovakia clearly fits into the European movement towards mandatory, interoperable e-invoicing systems, aligned with the EU's ViDA initiatives.
A-Cube APIs for e-invoicing in Slovakia
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.

European Union
Mandatory: VIDA from 2028
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.

European Union
Mandatory: VIDA from 2028
Local regulations, global API.
Every country has its own tax rules — we always have the right API. Our composable technology allows the platform to adapt to local needs, offering individual components or a fully integrated all-in-one solution.

European Union
Mandatory: VIDA from 2028













