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Validate Italy VAT Numbers via API
When building B2B applications that serve Italy (Italia), validating your customers' Partita IVA is essential for EU VAT compliance and protecting your business from tax liability.
The TaxID API provides instant validation of Italy 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.Italy applies a standard VAT rate of 22% (Partita IVA) and is fully supported by the VIES system.
QUICK START
curl -H "Authorization: Bearer YOUR_API_KEY" \ http://localhost:3000/api/v1/validate/IT/IT12345678901
Code examples
Choose your language. Every example validates a Italy VAT number and returns the registration status with company details.
const res = await fetch('http://localhost:3000/api/v1/validate/IT/IT12345678901', {
headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
const data = await res.json();
// { valid: true, status: "active", company_name: "...", country_code: "IT", cached: false }
console.log(data);When to validate Italy VAT numbers
B2B cross-border sales
When selling goods or services to Italy businesses in other EU member states, you must verify their Partita IVA 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 Italy business customers, validating the Partita IVA at checkout determines whether to apply 22% 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 aItaly supplier's Partita IVA 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 Italy VAT format (Partita IVA)
The Italian Partita IVA (P.IVA) consists of 11 digits where the last digit is a check digit computed using the Luhn algorithm. Italy also issues Codice Fiscale (CF) for individuals, which has a different alphanumeric format and is not the same as the P.IVA.
| Field | Value |
|---|---|
| Country code | IT |
| Local name | Partita IVA |
| Format | IT + 11 digits |
| Regex pattern | ^IT[0-9]{11}$ |
| Example | IT12345678901 |
| VIES supported | Yes |
VAT rates in Italy
Italy applies a standard Partita IVA rate of 22%. Reduced rates of 10% and 5% and 4% apply to essential goods and services.
| Rate type | Percentage | Currency |
|---|---|---|
| Standard rate | 22% | EUR |
| Reduced rate | 10% | EUR |
| Reduced rate | 5% | EUR |
| Super-reduced | 4% | EUR |
Frequently asked questions
What is the Italy VAT number format?
Italy VAT numbers (Partita IVA) follow the format: IT + 11 digits. A valid example is IT12345678901. 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 Italy 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 Italy 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 Italy?
The standard VAT rate in Italy is 22% (Partita IVA). Reduced rates of 10% and 5% and 4% 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 Italy 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 Italy 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 Italy?
Yes. Italy is fully supported by the EU VIES system and the TaxID API. VIES validates Italy VAT numbers in real time against the Italy national tax authority's registration database. The Italian Partita IVA (P.IVA) consists of 11 digits where the last digit is a check digit computed using the Luhn algorithm. Italy also issues Codice Fiscale (CF) for individuals, which has a different alphanumeric format and is not the same as the P.IVA.
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