Slovakia Announces B2B eInvoicing Mandate for 2027

In November 2025, the Financial Directorate of the Slovak Republic (FD SR) announced a new mandatory B2B eInvoicing framework, coming into effect on 1 January 2027.

While Slovakia already requires public sector bodies to accept structured eInvoices under the current B2G mandate, this reform marks a major expansion. It introduces a new national eInvoicing solution built on Peppol infrastructure, bringing Slovakian businesses into alignment with modern European invoicing and VAT reporting practices.

Below, we break down what’s changing, how it may affect your organisation and what you can do today to prepare.

Under the announced framework, by 1 January 2027 all Slovakian businesses will be required to:

For companies trading with Slovak businesses (including those outside the country) this means you must be capable of receiving structured eInvoices, even if you are not yet issuing them yourself.

The move is designed to increase accuracy, reduce fraud, improve visibility for tax authorities and streamline the end-to-end invoicing lifecycle.

Slovakia’s announcement is part of a growing global trend. Governments worldwide are modernising their tax and invoicing systems to improve transparency, reduce fraud and automate tax reporting.

Across the EU, this aligns closely with the VAT in the Digital Age (ViDA) initiative, which is focused on modernising VAT reporting and introducing cross-border digital invoicing requirements.

Slovakia’s move shows that mandatory eInvoicing is becoming the standard operating model across Europe, impacting not only local businesses but also their international trading partners.

Whether your business is located in Slovakia or trades with Slovak companies, early preparation is essential. Mandatory structured eInvoices will require:

Even if you’re not issuing eInvoices yet, you will still need to receive structured invoices from suppliers once the mandate begins.

The easiest way to prepare is to connect with Tickstar, an accredited Peppol Access Point provider who can help you meet technical requirements and ensure your systems are fully compliant before 2027.

Mandatory B2B eInvoicing is coming, and organisations that prepare early will benefit from smoother onboarding and better VAT compliance.

Tickstar helps organisations around the world transition to structured eInvoicing and connect securely to the Peppol network.

Start preparing now. Get in touch with Tickstar’s expert team to discuss your eInvoicing requirements.