An embeddable billing preflight that queries VIES and supported national fallbacks, preserves official consultation evidence, and signs the exact validation result and invoice context.
Genesis score7.23/10
Make VatPreflight real.0/500
500 more votes and VatPreflight is authorized for build.
0%500 to authorize
Backing is the vote. When an idea crosses 500, we pull it into the build pipeline and ship it for real — the votes decide what gets built next, not an editor.
The opportunity
1Direct API peer confirmed
100/moPeer free requests
0Automatic tax determinations
The case
Cross-border B2B sellers need evidence that they checked a buyer's VAT identifier, especially when VIES is unavailable or inconsistent. VatPreflight embeds the check in checkout and invoice flows, preserves source and fallback results, and monitors selected identifiers. It never treats a valid number as proof of buyer identity, establishment, transaction facts, reverse-charge eligibility, current tax status, or an audit outcome; those require invoice context and qualified tax policy.
Who pays — and why
B2B SaaS finance, billing, tax, and product teams selling across EU member states and needing repeatable validation evidence.
What it unlocks
A checkout and invoice component for country, identifier, buyer-entered name and address, transaction context, validation purpose, consent notice, and correction
Source-aware VIES and supported national-registry calls with timestamps, consultation number, raw status, normalized response, conflicts, outages, fallback reason, and unknowns
A signed evidence receipt bound to exact input, source response, consultation identifier, policy version, invoice candidate, signer, and later correction
Monitoring webhooks for status changes and outages without rewriting historical evidence or automatically changing issued tax documents
How Genesis scored it
7.23across seven criteria
8
Temporal window
A recent launch and reported VIES failures make the workflow timely.
8
Buyer persona
Cross-border SaaS billing and tax teams have an actionable workflow.
4
Incumbent blindspot
The direct peer and billing platforms can add a widget and receipt store.
Why it scored well
A live paid API validates the developer need, billing teams are concrete buyers, and an embedded evidence workflow is small enough to test quickly.
What's holding it back
The direct peer already offers fallback and consultation numbers, the idea has no convergence, tax conclusions remain outside scope, and the moat is thin.
Signals detected4 sources crossed
Signalcompetitor research carried in Genesis
Signalcompetitor material carried in Genesis
SignalGenesis product comparison
Signalcompetitor comparison carried in Genesis
Direction briefvatpreflight.md
vatpreflight.md
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