Stripe Tax Alternative for EU VAT Validation

Comparison based on Stripe Tax public documentation as checked on 11 September 2026.

Stripe Tax lives inside Stripe Checkout. The moment you bill through another processor, or need to validate a customer's EU VAT number outside the checkout flow – at signup, on a B2B invoice, during supplier onboarding, or as part of a reverse-charge confirmation – it does not apply.

vatnode is the API for those cases. It validates EU VAT IDs against VIES and answers in the same request, returns company data from national registries and the official VIES consultation number on qualified checks (when you supply your own VAT as requester), and stores a checkId and verifiedAt timestamp for every call.

When vatnode Fits Better

• You bill through Paddle, LemonSqueezy, or your own billing — not Stripe
• You need to validate customer VAT IDs at signup or invoice time, not at checkout
• You sell B2B and need reverse-charge confirmation per transaction
• You need the official VIES consultation number for audit/compliance evidence
• You run a marketplace or SaaS where customers self-report VAT IDs that must be verified
• You need a national VAT register fallback when VIES is unavailable
• You want AI agents (Claude, Cursor, ChatGPT) to validate VAT IDs and look up rates directly in chat via the official MCP server

Side-by-Side: Stripe Tax vs vatnode

Stripe Tax dimensions sourced from Stripe Tax public documentation as checked on 11 September 2026. Stripe may have changed its product since.

Example: Validate a VAT ID at Signup Without Stripe

A typical non-Stripe case – a SaaS billed through Paddle wants to validate the VAT ID a customer enters on the signup form, before the first invoice is generated. One REST call to vatnode is enough:

// Runs in a Next.js route handler, Supabase Edge Function,
// Hono on Cloudflare Workers — anywhere with fetch().

export async function validateAtSignup(vatId: string) {
  const res = await fetch(`https://api.vatnode.dev/v1/vat/${vatId}`, {
    headers: {
      'Authorization': `Bearer ${process.env.VATNODE_API_KEY}`,
    },
  })

  if (!res.ok) throw new Error(`VAT lookup failed: ${res.status}`)

  const data = await res.json()

  return {
    valid: data.valid,
    companyName: data.companyName,
    countryCode: data.countryCode,
    // consultationNumber is your audit evidence; checkId/verifiedAt are for your own reference:
    consultationNumber: data.consultationNumber,
    checkId: data.checkId,
    verifiedAt: data.verifiedAt,
  }
}

See the quickstart for the full request/response contract, and /docs/vat-validation for the validation endpoint reference.

VAT Validation for Every Flow Outside Checkout

vatnode handles VAT validation wherever a VAT number enters your system – signup forms, B2B invoicing pipelines, supplier onboarding, periodic re-validation and compliance audits. It runs next to Stripe or on its own, from any backend.

FAQ