Tool · OpenPeppol Directory

Peppol lookup — verify Participant ID.

Enter a Slovak VAT ID and we'll check the company's registration in the Peppol network. You get the canonical Peppol Participant ID („9950:SK...“) + a list of supported document types. Useful before the first send through a Peppol Access Point.

Krajina

Zadajte slovenské IČ DPH (s alebo bez „SK“ predvoľby) alebo DIČ — overíme obe schémy (9950 aj 0245). Pre iné krajiny postupujte podľa národnej VAT konvencie (CZ + 8/10 cifier, AT + „U“ + 8 cifier, atď.).

Pripravený na lookup

Po stlačení „Overiť“ skontrolujeme registráciu vo verejnom OpenPeppol Directory a vrátime podporované typy dokumentov.

Lookup používa verejné OpenPeppol Directory (directory.peppol.eu). Odpovede sú cache-ované 5 minút pre šetrnosť. Dáta nevedieme — len krátkodobý in-memory cache na našom serveri. Pre kritické odoslanie vždy verifikujte aj cez vášho Access Point poskytovateľa.

Anatomy of a Peppol ID

3 parts that form a Peppol Participant ID.

Peppol does not depend on national VAT systems. Every entity has a unified identifier of the form „iso6523-actorid-upis::scheme:value“ — a Slovak VAT payer 2020012345 receives „iso6523-actorid-upis::9950:SK2020012345“.

Current PFUOI codelist: docs.peppol.eu/poacc/billing/3.0/codelist/eas

  • iso6523-actorid-upis

    Namespace

    Standard OpenPeppol namespace for all Participant IDs. Always the same, independent of country or entity. Separated from the scheme by double colons „::“.

  • 9950

    Scheme — country

    Four-digit ISO 6523 PFUOI code. Slovakia = 9950 (Finančná správa SR), Czech Republic = 9930, Austria = 9915, Germany = 9930, Netherlands = 9944. For the full list, see the PFUOI codelist.

  • SK2020012345

    Value — identifier

    For most EU countries the value contains the VAT country prefix (SK, CZ, AT…). For Norway (scheme 9908) it is the bare organization number without a prefix. Our tool fills in the prefix automatically if you leave it out.

Embed the tool

Embed code for your site.

You can embed the lookup into your accountant blog, client portal or documentation. Works fully within an iframe, the attribution link points back here.

Use is free of charge. When embedding, please keep the attribution link „via 1FAKTURA“.

<div style="max-width:560px;margin:0 auto">
  <iframe src="https://1faktura.sk/nastroje/peppol-lookup/embed" width="100%" height="640" style="border:0;border-radius:16px" title="Peppol lookup – 1FAKTURA" loading="lazy"></iframe>
  <p style="font:12px/1.6 system-ui,sans-serif;text-align:center;margin:8px 0 0">
    <a href="https://1faktura.sk/nastroje/peppol-lookup" target="_blank" rel="noopener">Peppol lookup</a>
    · <a href="https://1faktura.sk/pravo/e-faktura-2027-povinnost" target="_blank" rel="noopener">1FAKTURA</a>
  </p>
</div>

Embed preview: /nastroje/peppol-lookup/embed

Related · Peppol AP choice

Digital postman — comparison of 12 SK Peppol APs

The lookup finds the Participant ID. The next step is choosing your own Access Point for sending. 12 Slovak providers, price and feature comparison.

Open comparison →Related · validation

UBL validator — EN 16931 + Peppol BIS 3.0

Before sending through a Peppol AP, verify that your UBL invoice passes the Peppol BIS Billing 3.0 schematron rules. 25 checks, result in a second.

Open validator →
Frequent questions about Peppol ID

Questions and answers
about the lookup.

Something doesn't match or you'd like another country? Write to us — we answer within 4 hours on business days.

info@1faktura.sk
What is a Peppol Participant ID and why do I need it?
+
A Peppol Participant ID is a pan-European identifier for B2B delivery of structured documents. It has the form „<scheme>:<value>“ — for Slovak companies „9950:SK<10 digits>“. Without this ID you cannot deliver an e-invoice over the Peppol network. For the 2027 e-invoice context, see the guide below.
Why does Slovakia use scheme 9950 when older documents mention 9914?
+
OpenPeppol moved the Slovak VAT scheme from 9914 (Austria) to 9950 (Slovakia, Finančná správa SR) in May 2026. Some older documentation still mentions the wrong 9914. Our lookup always uses the current 9950 for SK inputs.
Where does the lookup get data — do we run a direct DNS query?
+
No, we use the public OpenPeppol Directory at directory.peppol.eu. It synchronizes daily with the SML (the authoritative DNS-based registry). For most B2B entities in the EU that is sufficient. For critical sends (the first production invoice), also verify via your Access Point provider, which can perform a direct SMP lookup.
The entity is not in the Directory — can I still send them an invoice via Peppol?
+
Sometimes yes. The OpenPeppol Directory is a voluntary registry — some Access Points do not publish their clients in the Directory. Try sending the computed Peppol ID (9950:SK…) and the Access Point will tell you whether an SMP lookup finds an active registration. Alternatively, ask the client directly for their Peppol ID + AP.
Are inputs logged or monitored?
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The server caches results in memory for 5 minutes to spare OpenPeppol Directory bandwidth. No database logs. The VAT ID input does not leave our server — it is only passed as a query parameter to the Peppol Directory. For B2B-sensitive entities you can also use directory.peppol.eu directly (a link is shown in the error hint).
What is the rate limit on the public endpoint?
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The lookup endpoint is rate-limited to 60 requests per minute per IP. For larger volumes (for example bulk verification of 200 clients before Q1 2027), write to info@1faktura.sk — our integration library @1faktura/peppol-sk does the same thing directly through an API key without a rate limit.
What do the „document types“ returned by the tool mean?
+
Every Peppol Participant ID has a list of document types accepted by its Access Point in the Directory. The most important for 2027 is the BIS Billing 3.0 invoice type — when an entity supports it, it will accept a standard e-invoice. Other types include Despatch Advice, Order, Credit Note.
Does the lookup work for Czech, Austrian and other EU companies?
+
Yes. The country dropdown contains 29 supported EU + EFTA states with their assigned Peppol PFUOI schemes. For a CZ client choose CZ → scheme 9930, for AT → 9915. Verify the national VAT format convention with the relevant tax authority.
Can I embed the tool on my website?
+
Yes, the lookup has a standalone embed version at /nastroje/peppol-lookup/embed designed for iframes. The code is in the „Embed the tool“ section below. Use is free of charge, just keep the attribution link.
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