Frequently asked questions

Frequently asked questions about e-invoicing via Peppol

Everything you need to know about e-invoicing via Peppol and our portal. Could not find your answer? Write to us.

Why is it so cheap

How can you be the cheapest? What is the catch?
There is no catch, and yes, we are aware the price sounds unbelievable. We pushed it to the minimum deliberately, because that is our goal: to be the cheapest provider while keeping maximum quality.

It works because we automate everything that can be automated. When you select us on the Financial Administration portal, company verification, account setup, registration in the central Slovak registry and in the Peppol network, notification setup and reporting to the Financial Administration all happen without human intervention. Invoices are delivered, validated and confirmed with delivery receipts on their own. One customer therefore costs us practically nothing extra, and that is exactly how much cheaper we can afford to be.

On top of that, we do not carry the things that push the price up elsewhere: no corporate offices, no call centre, no commissions for sales reps. We operate our own Peppol Access Point, so we do not pay a margin to anyone above us. We host data in the cloud in the European Union and keep operations as lean as possible.

So this is not just a claim: our price list is entirely public (most of the market does not publish prices), and we give a price guarantee: if you find a cheaper comparable offer, we will match it, for as long as you use the service. With us, you simply never overpay.
Is such a low price not at the expense of reliability?
No, cheap and low-quality are not the same thing. We are a certified provider (ID EFSK000031) with our own Peppol Access Point (Seat ID PSK001128) with a direct connection to the network. We have passed all 19 OpenPeppol conformance tests, and our operations run on a production certificate on the live network. Every invoice goes through EN 16931 and Peppol BIS Billing 3.0 validation, and you get a delivery receipt for every invoice sent.

You do not have to take our word for it: download our provider certificate (PDF) or check our uptime on the public service status page, where we publish measured availability for the last 90 days.
Do you have ISO certification?
ISO/IEC 27001 certification is under way, handled in line with the Peppol requirements (security requirements for service providers). It is a shared obligation for every provider in the network, not something we are missing compared to the market.

Independently of that, we are already a certified provider, EFSK000031, with our own Peppol Access Point, and we run operations under the same rules: data in the EU, an audit trail for every operation, uptime monitoring and validation of every document.
How long have you been on the market, and what if you shut down?
The Verteco brand has been on the market since 2018; the digital postman service is operated by Verteco digital services, s. r. o. (company ID 53412834, Žilina), which holds the EFSK000031 certification and its own production Peppol certificate. We build on long-term relationships, which is why we offer the price guarantee and why we keep prices low permanently, not as a temporary promotion.

And most importantly: you are not tied to us in any way. Peppol is an open standard, you can switch providers at any time, and when you leave we hand over every document as both original XML and a CSV export, and delete our copies on request. No lock-in, no exit fees, no data hostage-taking.
Will you raise prices once e-invoicing becomes mandatory?
The prices in our price list apply from 1 January 2027, and it is the price the whole model is built on, not a bait-and-switch promotion that doubles after a year. Most of the market today offers “free until the end of 2026”; we publish straight away the price that will apply afterwards.

The backstop is our price guarantee: if anyone offers you a cheaper comparable offer, we will match it, at any point during your use of the service, not just at sign-up. A comparable offer is the permanent public price of a certified provider for a standalone digital-postman service of the same scope; time-limited promotions and prices conditional on buying another product (for example an accounting-software licence) do not count as comparable.
Where are my invoices stored, and who can access them?
We host data in the cloud in the European Union (Frankfurt); invoices never leave the EU. We keep the originals (XML) for every connected company for as long as the relationship lasts; when it ends, the choice is yours: we hand over the documents, delete our copies, or both.

Only your account and any accounts you invite have access to the documents. We can only make specific changes (access, transferring a company) from a verified account that selected us on the Financial Administration portal, which is why all support runs through the logged-in account. Details in our privacy policy.
Do you store my invoice content? Can I control that?
Yes, it is your choice, via a switch on the company detail page. If you want us to store your documents, we keep them including the original XML safely in the EU. If not, enable maximum encryption: we never store content long-term and readable copies are automatically deleted 14 days after delivery(the default for new companies). The statutory 10-year archiving duty (§ 76 of the Slovak VAT Act) then rests with you: originals arrive by e-mail or webhook and can be downloaded for 14 days. Details: maximum data encryption.

General

What is Peppol, and why do I need it?
Peppol is an international network for the secure, standardised exchange of electronic documents (mainly invoices) between businesses. From 1 January 2027, e-invoicing via Peppol will be mandatory for B2B transactions in Slovakia. Our portal lets you receive and send e-invoices without building your own technical integration.
From when is electronic invoicing mandatory?
Mandatory electronic invoicing for domestic B2B transactions between taxable persons based in Slovakia starts on 1 January 2027. The exact scope and deadline for a specific entity may differ; we recommend checking with your accountant. Get ready ahead of time: until that date, the portal is free for everyone.
Who is affected by the mandatory e-invoicing from 2027?
The law distinguishes two obligations. From 1 January 2027, VAT payers must issue e-invoices via Peppol for domestic B2B transactions. Every taxable person based in Slovakia, LLCs and sole traders alike, including businesses not registered for VAT, must be able to receive e-invoices, regardless of company size. Check the exact scope for your entity with your accountant.
What fines are there if I am not ready for e-invoicing?
Breaching e-invoicing obligations can bring a fine of up to €10,000 from 2027, and up to €100,000 for a repeat breach (Act No. 385/2025 Coll.). 2026 is a preparation period with no sanctions, and an obvious mistake you correct promptly is not fined. The safest route is to get set up and test the whole process already in 2026, for free. Details in the article Fines and penalties for e-invoicing (Slovak).
Can I manage multiple companies from one account?
Yes. One account handles multiple companies (LLCs, sole traders) and clients, which accountants especially appreciate. Receiving invoices is free for every company ID; the sending fee (€2/mo) is charged only for the company IDs that actively send.
What exactly is Peppol? Is it a portal I log into?
Peppol is not a portal. It is an international network (infrastructure) that businesses use to exchange structured documents through certified Access Points. Our portal is the interface to our certified Access Point (PSK001128): through it, you connect to the Peppol network without building your own integration.
What is the difference compared to a classic PDF invoice?
A PDF is essentially an image meant for a human; the recipient has to retype it or run OCR on it. A Peppol e-invoice is a structured data document (EN 16931) that the recipient system processes automatically, and it satisfies the legal e-invoicing obligation for domestic B2B transactions from 1 January 2027. A regular PDF invoice does not satisfy this obligation.
Can I send an invoice the old way through the portal (printed, by post or by e-mail)?
No. The portal is a pure delivery service into the Peppol network; invoices for recipients outside the network cannot be sent or printed through it. That is why we work with resellers whose invoicing tools run on our infrastructure: you create, print or e-mail the invoice there, and recipients on the Peppol network receive it electronically. The list is on our resellers (in Slovak).
How do I get started?
Register with your email, add your company (company ID and VAT ID), and you can start receiving and sending e-invoices. Getting started takes a few minutes. See how it works. Want to leave it to us? Managed onboarding.
Can an accountant or authorised representative select the provider on the FS portal?
Yes. The provider selection in VPDS can also be performed by an authorised representative (typically an accountant). The app uses the Financial Administration portal authorisation model: the representative signs in with their own OIZ account (via slovensko.sk / eID or a plain identifier and password) and sees every subject they act for. Authorisation is granted either online by the client's statutory body (no paperwork), or by filing an authorisation request with a power of attorney under § 9 of the Tax Code; no notarised signature is required and the tax office typically processes it within 1 to 3 working days.

Pricing and billing

How much does the portal cost?
Receiving e-invoices is free (up to 1,000 received/mo). The Sending and receiving package at €2 / mo / company ID (billed monthly in arrears for the previous month) includes everything: sending, REST API, webhooks, connectors to accounting/ERP/e-shop systems, multiple company IDs, B2G and reporting to the Financial Administration, up to 1,000 invoices/mo. Every additional invoice (received or sent) is €0,03. An optional managed integration of your system starts at €990 one-off. Prices apply from 1 January 2027; everything is free during the voluntary period. Details in our price list (prices excl. VAT, per company ID).
Is "free forever" really free?
Yes. Receiving e-invoices via Peppol is free up to 1,000 received invoices/mo (fair use, delivery is never blocked), including the Peppol Box (invoice inbox), EN 16931 validation, automatic receiving-side reporting to the Financial Administration (C5/TDD) and optional storage of invoices in the EU for the statutory period. This satisfies the legal obligation to receive e-invoices. When the relationship ends we hand over every document (original XML + CSV) and delete our copies on request. You only pay for sending and integrations.
How can you offer this for free?
The basic services have a fair-use limit: receiving up to 1,000 invoices a month is free and the complete sending package starts at €2/mo (including the API and connectors, up to 1,000 invoices/mo; every additional one is €0,03). We want mandatory e-invoicing not to be yet another unnecessary cost for small companies, so we have pushed prices to the minimum: we operate our own Access Point with no middlemen, which is what lets us afford it. We earn on volume (€0,03 per invoice over the limit) and on optional managed system integration (from €990). If you would like to connect an accounting, ERP or e-shop system, get in touch.
Can I start for free and upgrade later?
Yes. You set up free receiving and switch to sending or a custom integration at any time, with no lock-in. Signing up during the voluntary period means you are ready well ahead of the mandate.
What is the Slovak tax report (C5 / TDD)?
C5 reporting (TDD, Tax Data Document) is a tax report that is sent to the Slovak Financial Administration as part of e-invoicing. The portal generates and sends it automatically; it is included in the price of both sending and custom integrations, so there is nothing extra for you to do.
What happens if I go over 1,000 invoices a month?
Nothing gets blocked: invoice delivery keeps working; the 1,000/mo limit is fair use, not a hard cap. Every invoice over 1,000/mo (received or sent) is just €0,03. Transparent, no surprise bill (usually lower than the published per-document rates of competitors, €0,05–0,50). For large volumes or connecting your own system, get in touch. We will set up a managed integration, but the price per invoice stays the same.

Technical

Do I need my own software or an installation?
No. The portal is a web application: just register and work through your browser. No installation, and you are not tied to us in any way. For automation there is a REST API + webhooks, included in the €2/mo package (not an add-on).
Does it work with my accounting or ERP system?
Yes. The REST API, webhooks and connectors to common accounting/ERP/e-shop systems are included in the package from €2/mo (including SAP integration via API), so invoices flow straight from your system. Without an integration you can also invoice through the web dashboard. Want to leave the integration to us? We will set up a managed integration from €990 one-off (including setup and testing); then you run on €2/mo + €0,03. Write to us.

Security and trust

Is the portal certified?
Yes. We are a certified provider listed in the official register of the Slovak Financial Administration (PA SK ID EFSK000031, verifiable at vpds.financnasprava.sk) and we operate our own certified Peppol Access Point (Seat ID PSK001128, category 2b). We have successfully passed all 19 of 19 OpenPeppol conformance tests and we are in production. Every document is server-side validated against EN 16931 and Peppol BIS Billing 3.0.
What is the difference between you and other providers?
We operate our own certified Slovak Peppol Access Point (Seat ID PSK001128, certified provider PA SK EFSK000031): your invoices enter the network directly, with no intermediaries. That means a lower price, support in Slovak, data in the EU, and a single contract directly with the network operator. And if you want to offer e-invoicing to your clients under your own brand, the same Access Point can run behind your service (white-label).
What if I want to switch to another provider?
You are not locked in with us in any way. Peppol is an open standard: your company ID is registered in the network as a portable participant (Peppol Participant ID). You can move to another certified Access Point at any time; when you switch, we deregister you from the national SMP and export your data. No exit penalties, no locked formats.
Is my data safe?
Yes. All data is hosted in the EU (Frankfurt data centre) and processed under GDPR. Transfer is encrypted (TLS), we have Art. 28 GDPR agreements with our processors, and we never sell your data. Details in our privacy policy.

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