Slovakia is actively preparing for the introduction of electronic invoices — e-Faktúra. Electronic invoicing is expected to become a mandatory part of business processes from 1 January 2027.
The Slovak Financial Administration has already presented the first solutions for businesses, including Peppol — an international network for exchanging electronic invoices.
This means that ordinary PDF invoices will gradually become a thing of the past, and businesses should prepare for the new way of working in advance.
What Is Peppol and How Does It Work?
Peppol is an international system that allows companies to exchange electronic invoices directly with each other.
Peppol helps businesses to:
- send invoices between companies;
- automatically receive incoming invoices;
- transfer data into accounting systems;
- reduce manual data entry;
- reduce errors;
- speed up document processing.
The main difference from a regular PDF invoice is that an electronic invoice is not just a file for viewing. It contains structured data that can be automatically processed by accounting software or an ERP system.
Why PDF Invoices Will No Longer Be Convenient
Today, many entrepreneurs send invoices as PDF files by email.
But this method has several disadvantages:
- data must be entered manually into accounting;
- mistakes can happen in invoice numbers, amounts or customer details;
- documents can get lost in email;
- accounting automation is limited;
- accountants spend too much time on manual processing.
After the introduction of e-Faktúra, invoices will be exchanged in a structured electronic format.
This means that businesses will gradually move from “sending a PDF by email” to automated data exchange.
e-Faktúra for Small Businesses and Živnostníci
Simple solutions will be available for small businesses and self-employed persons — živnostníci.
For example:
- web interfaces;
- mobile applications;
- simple online services;
- solutions without complex integration;
- basic access to Peppol.
This is important because not every entrepreneur uses a full ERP system.
Small businesses do not necessarily need to implement complex software immediately. In many cases, a simple tool will be enough to receive and send electronic invoices.
Peppol for Larger Companies
For larger companies, electronic invoicing creates much bigger automation opportunities.
Companies will be able to integrate Peppol with ERP systems, such as:
- Odoo;
- SAP;
- Microsoft Dynamics;
- other accounting and warehouse systems.
This can automate:
- receiving supplier invoices;
- matching invoices with purchase orders;
- data verification;
- accounting entries;
- payment control;
- document flow between departments.
For companies with many suppliers and customers, this can significantly reduce costs, decrease errors and speed up accounting work.
Peppolbox: A Simple Start for e-Faktúra
The Financial Administration has presented Peppolbox as an open-source solution for receiving electronic invoices.
The main idea is to show how a simple connection to the electronic invoicing system can work.
Peppolbox can be useful as an example for:
- small businesses;
- accounting firms;
- developers;
- companies that want to understand how Peppol works;
- entrepreneurs who want to test the process in advance.
The goal of such solutions is to make the transition to e-Faktúra understandable and accessible not only for large companies, but also for ordinary entrepreneurs.
When Will e-Faktúra Become Mandatory in Slovakia?
The expected implementation timeline is:
- 2026 — testing and preparation period;
- 2027 — mandatory use of electronic invoicing.
This means that 2026 should be used for preparation.
Entrepreneurs should check their systems, accounting processes and invoice issuing methods in advance, instead of leaving everything until the last moment.
What Will Change for Businesses After e-Faktúra
After the introduction of electronic invoicing, businesses will face several important changes.
It is expected that:
- invoices will be exchanged in a structured electronic format;
- manual data entry will decrease;
- accounting will become more automated;
- the state will have more control opportunities;
- invoice errors will be detected faster;
- document exchange will become more transparent.
For entrepreneurs, this means one thing: if accounting is currently chaotic, it is better to start organizing processes now.
Why e-Faktúra Matters for Ukrainian Entrepreneurs in Slovakia
Many Ukrainians in Slovakia open a živnosť or s.r.o. and start doing business in a new system.
Entrepreneurs often use simple solutions:
- invoices in Excel;
- PDF invoices;
- manual email sending;
- separate spreadsheets;
- accounting without automation.
With the transition to e-Faktúra, this approach may become inconvenient and risky.
If a business works with several clients, suppliers or countries, it is better to choose a system in advance that can support electronic invoicing.
How to Prepare for e-Faktúra Now
To make the transition smooth, entrepreneurs should prepare in advance.
Recommended steps:
- check how invoices are currently issued;
- understand where incoming and outgoing documents are stored;
- choose accounting software or an ERP system;
- check whether the system can work with Peppol;
- test electronic invoice exchange;
- adapt accounting processes;
- train employees;
- discuss the transition with an accountant.
If you already use an ERP system, such as Odoo, it is worth checking in advance how it can work with e-Faktúra and Peppol.
e-Faktúra and Odoo
For companies using Odoo, the transition to electronic invoicing can be not a problem, but an opportunity.
Odoo can be used for:
- issuing invoices;
- managing customers and suppliers;
- automating accounting;
- tracking payments;
- managing orders;
- integrating with external services.
If business processes are set up correctly, e-Faktúra can become part of a broader business automation system.
This is especially useful for companies that want to reduce manual work and gain better financial control.
Help for Ukrainians in Slovakia
BUH.SK helps businesses prepare for electronic invoicing in Slovakia without stress.
We can help with:
- implementation of Odoo / ERP systems;
- setup of e-Faktúra and Peppol;
- bookkeeping and accounting;
- filing daňové priznanie;
- VAT / DPH registration;
- opening an s.r.o.;
- registering a živnosť;
- rental of sídlo firmy;
- tax consultations;
- business process setup.
We will help prepare your business for 2027 and choose a solution that fits your size and way of working.
Do You Want to Prepare for e-Faktúra?
Contact us if you want to:
- understand what e-Faktúra means;
- choose the right solution;
- prepare your accounting;
- set up Odoo or another ERP system;
- test Peppol;
- automate invoice processing;
- avoid chaos before mandatory implementation.
The earlier you start preparing, the easier the transition will be.
Conclusion
Electronic invoicing in Slovakia is not a temporary trend. It is the future standard for business.
The transition to e-Faktúra and Peppol means:
- less manual data entry;
- more automation;
- faster invoice exchange;
- more control;
- new requirements for accounting and business systems.
Entrepreneurs who prepare in advance will have an advantage: fewer errors, less stress and more efficient accounting.
