Marketplace platforms operating in Europe must ensure sellers comply with e-invoicing mandates, tax calculation rules, and tax number validation requirements in every country they sell to. Clearvo gives you an entity-per-seller model, built-in Tax Number Validation, and a consolidated compliance view — without building per-country logic in-house.
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Under EU deemed supplier rules and expanding marketplace liability legislation, you can be held responsible for ensuring sellers issue valid invoices. Here is what makes that hard to scale.
A seller in Italy submits to SDI using FatturaPA. A seller in Poland uses KSeF FA(3). A seller in Germany uses XRechnung. A seller in France will be on DGFiP from September 2026. Eastern European sellers on your platform face fiscalization requirements — Romania (ANAF), Hungary (NAV), and Greece (myDATA) require real-time authority clearance. The format, signing requirements, and authority API differ in every case — and you cannot build per-country logic for each one.
Sellers often enter incorrect tax numbers during onboarding — wrong format, wrong country, or completely fictitious. Once those numbers are in your system and used on invoices, you inherit the compliance risk. Upstream verification before any invoice is submitted is the only reliable control.
Without a common compliance layer, your finance team is chasing submission status across seller portals, country-specific tax dashboards, and email trails. There is no single audit trail per seller, no aggregate rejection rate, and no way to flag a seller that is systematically producing invalid invoices.
Clearvo's entity model maps directly to your seller base. Each seller is a separate entity with its own tax numbers and country settings — one API call per invoice handles e-invoicing format generation, Tax Calculations, Tax Number Validation, and authority submission, regardless of which country the seller operates in.
Use the Clearvo API to create an entity for each seller with their legal name, country, and tax numbers. Entity creation takes one API call. Clearvo validates the tax number format, stores it, and links it to the seller's invoice submissions going forward.
Use Clearvo's tax number verification API to check seller tax numbers against government registers in 100+ countries before onboarding completes. A seller with an invalid or unverified tax number cannot send invoices through Clearvo — the verification gate sits upstream of the invoicing flow.
When a seller transaction requires an invoice, your platform sends a single API call to Clearvo with the seller entity ID, buyer details, and line items. Clearvo generates the correct format for the seller's country, signs where required, and submits to the relevant authority or Peppol network endpoint.
The Clearvo dashboard shows submission status, rejection rates, and clearance tracking across all sellers — filterable by country, seller, date range, and status. Finance teams can identify sellers with recurring rejections, pull audit trails for specific sellers, and export records for regulator requests.
Clearvo is designed for platforms managing full tax compliance on behalf of sellers — invoicing, calculations, tax number validation, and reporting — not single-company billing scenarios. These are the specifics that matter at scale.
Each seller is a separate entity in Clearvo with its own invoice records, authority credentials, and tax numbers. Entity-scoped API keys mean a seller's data is isolated — there is no risk of cross-seller data bleed in API responses or dashboard views. Account-scoped keys give your platform a consolidated view across all sellers.
Clearvo's tax number verification API checks seller tax numbers against government registers before any invoice can be submitted. Catches format errors, unregistered numbers, and deregistered entities — before they appear on invoices you are liable for. Verification results are stored and queryable per seller.
When a buyer operates in a Peppol-network country (Belgium, Germany, Netherlands, Norway, Australia, and 20+ more), Clearvo resolves their network endpoint from their tax number automatically. Your sellers do not need to know or provide Peppol participant IDs — routing is handled transparently per transaction.
Configure webhook endpoints at the entity (seller) level or at the account (platform) level. Entity-level webhooks notify each seller's system directly when their invoice is accepted or rejected. Account-level webhooks give your platform ops team a consolidated event stream to monitor compliance across the full seller base.
EU e-invoicing mandates are the most sweeping compliance change in a generation. These are the numbers that define the scope.
Countries covered by Clearvo, from Italy and Poland to Australia and Japan. One API call per invoice, regardless of where your seller operates. See the full 32-country coverage list.
Country registers supported for tax number verification — from EU VIES to US EIN, UK HMRC, and AU ABN. Verify before onboarding, not after.
France mandatory B2B e-invoicing launches. Belgium: Peppol mandatory for B2B from 2026. If your sellers operate in these markets, the clock is running.
Sign up and model your seller base in Clearvo today. No sales call, no implementation partner, no per-country project.
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