From 1 January 2027, electronic invoicing becomes mandatory. But you can get ready right now, without the rush. Send and receive eInvoices through a certified Slovak Peppol Access Point. No subscriptions. You pay only for what you use, or agree a tailored solution at higher volumes.
From 1 January 2027, an electronic invoice delivered through a certified Access Point becomes the only lawful way to invoice in domestic business-to-business transactions. Until then it’s all voluntary, so you can prepare in good time.
Issuing eInvoices for domestic supplies is mandatory for VAT payers established in Slovakia.
As long as you are not a VAT payer, sending remains voluntary for now.
Every legal entity and every self-employed individual must be able to receive an eInvoice. That includes sole traders, the liberal professions and landlords.
That ability must be in place in advance, regardless of whether an invoice actually reaches you.
Every company and sole trader must have the ability to receive an eInvoice in place in advance. The obligation applies whether or not an eInvoice ever reaches you. So don’t wait for the first one to arrive. You need to be connected before it does.
The good news: being ready costs you nothing. You only pay for the invoices you send and receive.
Depending on how many invoices you handle and what you need.
Not sure? Start with the solution for small businesses. You can move to individual pricing at any time.
No monthly subscriptions, no bundles you have to pick in advance. You pay only for the invoices you send and receive. At low volumes, that puts you well below the usual monthly minimum fees.
Because you pay per use, getting ready for 2027 costs very little today. You aren’t waiting for a bundle to “pay off”.
Free solutions tend to be capped by invoice count. One unplanned incoming invoice too many and you’re pushed onto a paid plan, usually when you least expect it. With us, you pay only for what goes through.
Both incoming and outgoing documents for the whole calendar year are kept until the tax-return filing deadline for that year (for example, 2026 documents until the end of March 2027), so you don’t have to handle archiving yourself during the year.
Every eInvoice comes with a readable PDF preview. Until their software can import eInvoices, they post it exactly as before, when PDFs arrived by e-mail.
Your trade secrets stay protected. The service builds on our experience from deployments where data security was the priority. More in Security.
Processing thousands of invoices, running an ERP and carrying your own technical requirements? We’ll adapt the solution to you, including individual pricing based on your real volumes and needs.
At higher volumes we agree pricing with you individually, rather than applying one price list to everyone.
By default you connect through our interface. If your environment has non-standard demands, such as exchange over messaging rather than an API, batch processing or integrating your own identity provider (IdP), we’ll tailor the solution accordingly.
Both sending and receiving invoices run automatically, with no extra manual steps.
Start during the voluntary period. That gives you room to fine-tune your processes and integration before the hard start on 1 January 2027.
Protection of trade secrets and data, built on experience from deployments where security was the priority. More in Security.
Thousands of your invoices together are a map of your business: who you trade with, what exactly you buy and sell, at what prices, in what quantities and when. Whoever sees that flow sees your commercial strategy. That’s why security sits at the core of our service, not on a checklist.
We protect more than trade secrets. As a company we have handled tax secrecy, a stricter regime of protection than ordinary trade secrets require. ISO/IEC 27001 (information security) and ISO 9001 (process quality) certification is our baseline, not a goal in itself. We also protect personal data in line with the GDPR.
It runs in a Slovak data centre at Tier III level (99.982 % availability, i.e. roughly 1.6 hours of possible downtime per year), encrypted in transit and at rest. The system is protected by several layers: inspection of incoming traffic including encrypted traffic (a WAF with HTTPS inspection), a buffer zone separating it from the internet (DMZ), anti-malware scanning of uploaded files, and isolation of individual applications (containerisation), so a problem in one part does not spread further.
Sign-in is protected by multi-factor authentication (MFA), so a leaked password alone isn’t enough. All communication runs over modern TLS 1.3 encryption. This prevents anyone from acting in your name without authorisation.
Every operation in the system is written as a permanent record that can’t be altered or deleted once written (append-only), much like a receipt in the eKasa cash-register system. That means you can always verify reliably, after the fact, who did what in the system and when.
Connecting has two parts: first you select us as your Access Point provider on the Financial Administration portal, then you set up an account with us. Read the whole procedure first, because the order of the steps matters.
Sign in to the Financial Administration portal via Slovensko.sk under your taxable person’s account (identity verified by eID) and, in the eInvoice section, select us from the list of certified delivery service providers.
Once you confirm your choice, the Financial Administration automatically sends an invitation with an activation code to your mailbox (and passes your details on to us).
You register and use the activation code from the invitation to link your account with the details received from the Financial Administration.
You fill in the billing details and choose whether the entity will only send invoices, or receive them as well.
You can attach other people from your team to the account and manage their access.
You do not have to decide everything at once. The Financial Administration allows you to have several Access Point providers selected at the same time. You can send invoices through more than one, but receive them through only one (which you can change at any time). Select us for sending only if you want to keep receiving invoices through another provider.
No subscriptions, no bundles you have to pick in advance. We charge only for what you use: the invoices you send and receive. At low volumes, that puts you well below the usual monthly minimum.
The Slovak Financial Administration itself estimates that a subscription to a simple Access Point application sits around the European average of €5–12 per month. With pay-per-use, a handful of invoices costs you a fraction of that, because you aren’t paying for capacity you never use.
And unlike “free” plans capped by invoice count, a single unplanned incoming invoice won’t push you onto a paid tier. You pay only for what goes through, with no sudden jump into a higher bracket.
An eInvoice is neither a PDF nor a scan. It is a structured file in which every value has its exact place, so software can read and process it on its own, with no re-keying. Simplified, it looks like this:
<Invoice> <cbc:ID>2026/001</cbc:ID> <cbc:IssueDate>2026-03-15</cbc:IssueDate> <cac:AccountingSupplierParty>Supplier Ltd.</cac:AccountingSupplierParty> <cac:AccountingCustomerParty>Customer PLC</cac:AccountingCustomerParty> <cac:TaxTotal><cbc:Percent>23</cbc:Percent></cac:TaxTotal> <cbc:PayableAmount currencyID="EUR">123.00</cbc:PayableAmount> </Invoice>
Whereas a PDF is a “picture” of an invoice for a human, this is data for a machine. The field names (cac:, cbc:) are internationally standardised (UBL under the EN 16931 standard). It isn’t a format of our own, so the same invoice can be read by software anywhere in the EU.
Peppol is a European network for the secure exchange of business documents, a kind of “digital post office” for invoices across the EU. Rather than a state repository of invoices, it’s a network through which Access Points deliver documents to one another. Slovakia adopted this delivery method in Act No. 385/2025 Coll., in line with the EU’s ViDA reform.
The invoice goes directly from you to your customer through two intermediaries called Access Points:
You issue the invoice.
Takes it and sends it into the network.
All Soft CorpA decentralised registry that identifies which Access Point the customer uses.
Receives the invoice.
Has it in their system.
The state does not centrally collect or store your invoices. The invoice travels directly between your Access Point and your customer’s. And you choose that Access Point, not the state, so you can pick one you trust and that suits you on price and features. The Financial Administration only comes in because certain data from the invoice is reported to it automatically via the Access Point. That means selected data rather than entire invoices, similar in scope to what the state already sees from eKasa cash-register receipts.
Listed, certified and independently audited, so you have something solid to base your decision on.
The obligation arrives on 1 January 2027, but you can connect today and try everything out without pressure. You pay only for what you use.