Romania, Hungary, Greece, and Spain all require transaction data to reach the tax authority within a strict window — separately from, and often faster than, invoice delivery to your buyer. This is fiscalization: a real-time reporting obligation layered on top of your existing billing flow. Clearvo extracts the required data automatically and reports it within the authority-mandated window, with no change to how invoices reach your customers.
E-invoicing mandates fall into two distinct models, and confusing them leads to the wrong integration. Clearance countries (Italy, Poland, France) hold your invoice until the authority approves it. Real-time reporting countries let the invoice reach your buyer immediately — but require a parallel, time-boxed data feed to the tax authority.
Invoices are delivered directly to your customer — no waiting on authority approval. In parallel, transaction data must reach the tax authority within a strict window, often within hours. Miss the window and the supplier (sometimes the buyer too) is liable for fines, even though the invoice itself was valid.
The opposite model: the invoice cannot reach the buyer until the tax authority has approved it and returned a clearance reference. See Clearvo’s e-invoicing product for Italy, Poland, and France.
Each authority runs its own platform, reporting window, and technical format. Clearvo normalizes all four behind a single API call.
| Country | System / Authority | Reporting window | Status |
|---|---|---|---|
| 🇫🇺Hungary | Online Számla — NAV | Within 24 hours of issuance (effectively immediate above the VAT threshold) | Live since 2018 |
| 🇷🇴Romania | e-Factura — ANAF | Within 5 calendar days of the invoice issue date | Live since 2024 |
| 🇪🇸Spain | VERI*FACTU — AEAT | Real-time to near-real-time software registration (4 days under the existing SII regime) | Live since Jul 2025 |
| 🇬🇷Greece | myDATA — AADE | Simultaneous with or shortly after invoice issuance/receipt | Live since 2021 |
| 🇷🇸Serbia | SEF — Serbian tax authority | Mandate expanding through 2026 | Coming 2026 |
Full technical detail, format specs, and integration notes: Hungary · Romania · Spain · Greece.
Real-time reporting runs alongside your existing invoice delivery — not instead of it. Clearvo extracts what each authority needs from the same data you already send for e-invoicing or tax calculation.
Your invoice goes to your buyer the same way it always has — through Peppol, direct delivery, or however your billing system already works. Real-time reporting adds no delay to this path.
Clearvo extracts the transaction data the authority requires, formats it to spec (NAV XML, ANAF UBL, myDATA XML, or AEAT’s RegistroFacturacion payload), and submits it within the mandated window — automatically, on every invoice.
Clearvo polls for the authority’s acknowledgement (NAV transaction ID, ANAF index, myDATA MARK number) and fires a webhook. If a submission is rejected or missed, you see it immediately — not at the end of a filing period.
Real-time reporting is bundled with Clearvo’s e-invoicing product — no separate account or contract.
View the full e-invoicing product →Real-time reporting is a tax compliance model, used mainly in Eastern Europe and Spain, that requires businesses to transmit transaction data to the tax authority within a short window — separately from delivering the invoice itself to the buyer. It differs from real-time clearance (used in Italy, Poland, and France), where the authority must approve the invoice before it can reach the buyer at all. See what fiscalization means for the fuller picture.
Clearvo reports to Hungary’s NAV (Online Számla), Romania’s ANAF (e-Factura), Spain’s AEAT (VERI*FACTU), and Greece’s AADE (myDATA) today. Serbia’s SEF mandate is expanding through 2026 and is on Clearvo’s roadmap.
No. Real-time reporting is a parallel obligation to the tax authority, not a delivery mechanism to your buyer. Your invoice delivery path — Peppol, direct send, or however you already bill customers — is unaffected. Clearvo extracts the required data from the same invoice and reports it separately.
Each authority enforces its own penalties for missed or incorrect reporting, and in some jurisdictions (Romania, for invoices accepted from mid-2024) the buyer can also be penalized for accepting a non-compliant invoice. Clearvo polls for authority acknowledgement on every submission and fires a webhook immediately on rejection or delay, so failures are visible the moment they happen rather than at the end of a filing period.
Bundled with e-invoicing — no separate contract.
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