Compliance & Business Live on RapidAPI & Zyla POST /v1/eu-vat-calculator

EU Cross-Border VAT Rate & Reverse-Charge Decision Engine API (All 27 Member States)

Determine exact EU VAT rates, B2B reverse charge, EN 16931 tax category codes, and mandatory invoice legal text. Calculate EU cross-border B2B and B2C VAT across all 27 EU member states plus UK, CH, and NO. Determines reverse-charge eligibility (Art. 196), OSS B2C destination VAT, export zero-rating, EN 16931 tax codes, and legal invoice notes.

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1. Interactive Sandbox & Sample JSON Output

200 OK · Ready

Editable Request JSON (`POST /v1/eu-vat-calculator`)

Live 200 OK Response Envelope

{
  "ok": true,
  "data": {
    "regime": "eu_b2b_reverse_charge",
    "seller_country": "HU",
    "buyer_country": "DE",
    "tax_jurisdiction": "DE",
    "buyer_is_business": true,
    "buyer_vat_format_valid": true,
    "applied_vat_rate": 0,
    "standard_rate_in_jurisdiction": 19,
    "peppol_tax_category": "AE",
    "net_amount": 200,
    "vat_amount": 0,
    "gross_amount": 200,
    "directive_reference": "Council Directive 2006/112/EC Articles 44 & 196 (Intra-EU B2B Reverse Charge)",
    "invoice_legal_notice": {
      "en": "Reverse charge — VAT to be accounted for by the recipient pursuant to Article 196 of Council Directive 2006/112/EC.",
      "de": "Steuerschuldnerschaft des Leistungsempfängers (Reverse-Charge-Verfahren gem. § 13b UStG / Art. 196 MwStSystRL).",
      "fr": "Autoliquidation de la TVA par le preneur (Article 196 de la directive 2006/112/CE).",
      "hu": "Fordított adózás — az áfát a szolgáltatás igénybevevője fizeti meg (2006/112/EK irányelv 196. cikk)."
    }
  },
  "meta": {
    "request_id": "req_vatc_01",
    "ms": 1
  }
}

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2. Quickstart Code Examples

Full TypeScript & Python SDK →

curl -X POST "https://api.tinplate.dev/v1/eu-vat-calculator" \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_RAPIDAPI_KEY" \
  -d '{"seller_country":"HU","buyer_country":"DE","buyer_vat_number":"DE123456789","amount":200,"amount_type":"net","supply_type":"digital_saas"}'

import { TinplateClient } from "@tinplate/sdk"; // npm install @tinplate/sdk

const tinplate = new TinplateClient({
  rapidApiKey: process.env.RAPIDAPI_KEY!,
});

const { data, meta } = await tinplate.call("/v1/eu-vat-calculator", {
  "seller_country": "HU",
  "buyer_country": "DE",
  "buyer_vat_number": "DE123456789",
  "amount": 200,
  "amount_type": "net",
  "supply_type": "digital_saas"
});
console.log(`[${meta.ms} ms]`, data);

import requests

response = requests.post(
    "https://api.tinplate.dev/v1/eu-vat-calculator",
    headers={
        "Content-Type": "application/json",
        "X-RapidAPI-Key": "YOUR_RAPIDAPI_KEY",
    },
    json={
  "seller_country": "HU",
  "buyer_country": "DE",
  "buyer_vat_number": "DE123456789",
  "amount": 200,
  "amount_type": "net",
  "supply_type": "digital_saas"
}
)
print(response.json())

const response = await fetch("https://api.tinplate.dev/v1/eu-vat-calculator", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "X-RapidAPI-Key": "YOUR_RAPIDAPI_KEY",
  },
  body: JSON.stringify({
  "seller_country": "HU",
  "buyer_country": "DE",
  "buyer_vat_number": "DE123456789",
  "amount": 200,
  "amount_type": "net",
  "supply_type": "digital_saas"
}),
});
const result = await response.json();
console.log(result);

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "tinplate_eu_vat_calculator",
    "arguments": {
      "seller_country": "HU",
      "buyer_country": "DE",
      "buyer_vat_number": "DE123456789",
      "amount": 200,
      "amount_type": "net",
      "supply_type": "digital_saas"
    }
  }
}

OpenAPI 3.0.3 Schema Contract

Request Parameters & Response Schema Reference

Request Body Parameters (`POST /v1/eu-vat-calculator`)

Parameter	Type & Constraints	Description
`seller_country`required	`string` minLen: 2, maxLen: 2	2-letter ISO country code of the seller (e.g. 'HU', 'DE').
`buyer_country`required	`string` minLen: 2, maxLen: 2	2-letter ISO country code of the buyer (e.g. 'DE', 'US', 'GB').
`buyer_vat_number`optional	`string` maxLen: 32	Optional buyer EU VAT number (validated offline via country checksum rules).
`amount`required	`number` min: 0, max: 1000000000	Transaction amount to calculate VAT for.
`amount_type`optional	`"net" \| "gross"` default: "net"	Whether 'amount' is net (exclusive of VAT) or gross (inclusive of VAT).
`supply_type`optional	`"digital_saas" \| "b2b_services" \| "physical_goods" \| "reduced_rate"` default: "digital_saas"	Category of goods or services supplied.

Response `data` Object Fields (`200 OK`)

Field	Type	Description
`regime`	`"domestic_taxable" \| "eu_b2b_reverse_charge" \| "eu_b2c_oss_destination" \| "export_outside_eu" \| "non_eu_transaction"`	Field 'regime'
`seller_country`	`string`	Field 'seller_country'
`buyer_country`	`string`	Field 'buyer_country'
`tax_jurisdiction`	`string`	Field 'tax_jurisdiction'
`buyer_is_business`	`boolean`	Field 'buyer_is_business'
`buyer_vat_format_valid`	`boolean \| null`	Field 'buyer_vat_format_valid'
`applied_vat_rate`	`number`	Field 'applied_vat_rate'
`standard_rate_in_jurisdiction`	`number`	Field 'standard_rate_in_jurisdiction'
`peppol_tax_category`	`"S" \| "Z" \| "AE" \| "G" \| "O"`	UNCL5305 / Peppol BIS 3.0 Tax Category code (S=Standard, AE=Reverse Charge, G=Export, Z=Zero).
`net_amount`	`number`	Field 'net_amount'
`vat_amount`	`number`	Field 'vat_amount'
`gross_amount`	`number`	Field 'gross_amount'
`directive_reference`	`string`	Field 'directive_reference'
`invoice_legal_notice`	`object`	Field 'invoice_legal_notice'

3. What EU Cross-Border VAT Rate & Reverse-Charge Calculator API Detects & Validates

Complete 2026 VAT rate table for all 27 EU member states (including Greece 'EL' prefix support) plus UK (GB), Switzerland (CH), Norway (NO), and US
Intra-EU B2B Reverse Charge (Directive 2006/112/EC Art. 196) vs. Intra-EU B2B Goods Zero-Rated Dispatch (Art. 138)
Intra-EU B2C OSS destination taxation vs. below-threshold (€10,000) origin taxation
Emits EN 16931 / Peppol tax category code (S, AE, K, G, E, O) and mandatory invoice legal exemption notice

Honest Engineering Boundaries

4. Known Limitations & Test Verification

Release Version: v1.0.7 · Last Verified / Benchmarked: 14 November 2026 · Latency Note: Sub-millisecond figures measure in-Worker V8 compute time (typical client HTTPS network RTT to the nearest Cloudflare PoP is 15–65 ms) · See Full Portfolio Benchmarks & Corpora →

Covers general goods, services, and digital/electronically supplied services; specialized margin schemes (e.g. TOMS travel agents or second-hand art) require bespoke tax advice.
Tested v1.0.6 (14 November 2026).

5. Marketplace Plans & Payload Quotas

Plan	Monthly Price	Included Requests	Rate Limit	Max Request Payload	Best For
BASIC	$0.00 / month	500 / month (hard limit)	10 req / min	64 KB	Evaluation, local development & CI smoke tests
PRO	$9.99 / month	15,000 / month	60 req / min	128 KB	Solo developers & production apps
ULTRA	$29.99 / month	100,000 / month	300 req / min	256 KB	Growing SaaS & multi-agent pipelines
MEGA	$79.99 / month	500,000 / month	1,000 req / min	256 KB	High-volume enterprise workloads

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6. Frequently Asked Questions

How do I combine this with EU VIES VAT validation?

Call POST /v1/eu-vat-iban first (or execute the 1-call POST /v1/presets/eu-vendor-kyb preset) to verify the buyer's VAT ID, then pass buyer_vat_valid into this calculator.

Does it handle both 'GR' and 'EL' for Greece?

Yes—both ISO-3166 'GR' and EU VAT prefix 'EL' automatically normalize to Greece's 24% standard / 13% & 6% reduced rates.

Zero Payload Logging

7. Data Handling, Privacy & Marketplace Proxy Disclosure

Purely deterministic in-memory rate and regime calculation; no transaction data is stored.

Worker Zero-Logging Guarantee: Cloudflare Workers Observability and invocation logging are disabled in configuration (observability.enabled = false, head_sampling_rate = 0, invocation_logs = false). Payloads are processed strictly in volatile V8 memory and never logged or stored by Tinplate.

Marketplace Proxies vs. Direct Bearer Key: Requests sent via RapidAPI or Zyla API Hub pass through those marketplaces' proxy infrastructure (subject to their respective privacy policies). Security-sensitive workloads requiring end-to-end zero-intermediary processing can connect directly to https://api.tinplate.dev using a Direct Bearer Key (Authorization: Bearer <API_KEY>). Read our full Privacy Notice and OpenAPI 3.0.3 JSON Schema.