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Validate Hungary VAT Numbers via API
When building B2B applications that serve Hungary (Magyarország), validating your customers' ANUM (Adószám) is essential for EU VAT compliance and protecting your business from tax liability.
The TaxID API provides instant validation of Hungary VAT numbers through the EU VIES (VAT Information Exchange System). Every request returns the registration status, company name, and registered address — with sub-100ms response times for cached results.Hungary applies a standard VAT rate of 27% (ANUM) and is fully supported by the VIES system.
QUICK START
curl -H "Authorization: Bearer YOUR_API_KEY" \ http://localhost:3000/api/v1/validate/HU/HU12345678
Code examples
Choose your language. Every example validates a Hungary VAT number and returns the registration status with company details.
const res = await fetch('http://localhost:3000/api/v1/validate/HU/HU12345678', {
headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
const data = await res.json();
// { valid: true, status: "active", company_name: "...", country_code: "HU", cached: false }
console.log(data);When to validate Hungary VAT numbers
B2B cross-border sales
When selling goods or services to Hungary businesses in other EU member states, you must verify their ANUM (Adószám) to correctly apply zero-rate VAT under the reverse charge mechanism. Failing to validate before zero-rating a transaction makes your company liable for the full VAT amount if the customer turns out to be unregistered.
E-commerce and SaaS checkout
If your platform accepts Hungary business customers, validating the ANUM (Adószám) at checkout determines whether to apply 27% VAT (B2C) or zero-rate the sale (B2B reverse charge). This directly affects your invoicing, revenue recognition, and quarterly VAT return figures.
Supplier and partner onboarding
For ERP systems, procurement platforms, and DAC7-regulated marketplaces, validating aHungary supplier's ANUM (Adószám) during onboarding prevents invalid numbers from entering your accounting system — which can cause rejected invoices and audit failures. Validate once at onboarding, then periodically re-validate to catch deregistrations.
About Hungary VAT format (ANUM)
Hungary has the highest standard VAT rate in the EU at 27%. The Hungarian tax number (adószám) has 11 digits in total (8-digit base + 3 additional digits for local tax), but only the first 8 digits appear in the EU VAT number.
| Field | Value |
|---|---|
| Country code | HU |
| Local name | ANUM (Adószám) |
| Format | HU + 8 digits |
| Regex pattern | ^HU[0-9]{8}$ |
| Example | HU12345678 |
| VIES supported | Yes |
VAT rates in Hungary
Hungary applies a standard ANUM rate of 27%. Reduced rates of 18% and 5% apply to essential goods and services.
| Rate type | Percentage | Currency |
|---|---|---|
| Standard rate | 27% | HUF |
| Reduced rate | 18% | HUF |
| Reduced rate | 5% | HUF |
Frequently asked questions
What is the Hungary VAT number format?
Hungary VAT numbers (ANUM (Adószám)) follow the format: HU + 8 digits. A valid example is HU12345678. The TaxID API validates both the format locally and the registration status via VIES, ensuring you only accept properly registered EU businesses.
Is VAT validation mandatory for selling to Hungary businesses?
EU VAT law requires that suppliers verify a customer's VAT registration before applying zero-rate treatment to intra-community B2B supplies. If you sell goods or services to a Hungary business without VAT and their registration is invalid, your company may be liable for the full VAT amount plus interest and penalties. Validation is not just recommended — it is your legal due diligence obligation.
What is the standard VAT rate in Hungary?
The standard VAT rate in Hungary is 27% (ANUM). Reduced rates of 18% and 5% apply to certain goods and services such as food, books, and medical supplies. The TaxID API's /rates endpoint returns all current rates for programmatic access.
How long does Hungary VAT validation take with TaxID?
For cached results (previously validated in the last 24 hours), the TaxID API responds in under 10ms. For uncached requests, the VIES SOAP call to the Hungary tax authority typically completes in 100–400ms. Active (valid) numbers are cached for 24 hours; invalid numbers are cached for 1 hour to balance performance with freshness.
Does the TaxID API support VIES for Hungary?
Yes. Hungary is fully supported by the EU VIES system and the TaxID API. VIES validates Hungary VAT numbers in real time against the Hungary national tax authority's registration database. Hungary has the highest standard VAT rate in the EU at 27%. The Hungarian tax number (adószám) has 11 digits in total (8-digit base + 3 additional digits for local tax), but only the first 8 digits appear in the EU VAT number.
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