VAT Number and VIES Verification: Everything You Need to Know

VAT number verification is a fundamental operation for anyone working with businesses and professionals, both in Italy and across the European Union. Checking the validity of a VAT number protects against fraud, enables you to issue correct invoices, and ensures tax compliance in commercial transactions. In this comprehensive guide, we'll explain how to verify an Italian and EU VAT number, what the VIES system is, and why it's so important for intra-community operations.

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For a quick and immediate check, use our online VAT number verification tool, which allows you to check the validity of any VAT number in just a few seconds.

What is a VAT Number: Definition and Structure

A VAT number (Partita IVA — Value Added Tax Identification Number) is a numerical code that uniquely identifies a person or entity carrying out an economic activity for VAT purposes. In Italy, it consists of 11 digits preceded by the international prefix "IT".

Structure of the Italian VAT Number

  • First 7 digits: identify the taxpayer (sequential number assigned by the office)
  • Digits 8-10: identify the provincial office of the Revenue Agency that issued it
  • Eleventh digit: check digit, calculated using a specific algorithm to verify the formal correctness of the number

Who Must Have a VAT Number

The following are required to have a VAT number:

  • Sole proprietorships and companies
  • Freelance professionals
  • Artisans and traders
  • Self-employed workers with regular business activity
  • Non-commercial entities that carry out commercial activities
  • Tax representatives of non-resident entities

How to Verify an Italian VAT Number

1. Verification on the Revenue Agency Website

The official method for verifying an Italian VAT number is the online service of the Agenzia delle Entrate (Italian Revenue Agency). By entering the VAT number, the system returns:

  • Status of the VAT number (active, ceased, suspended)
  • Name or business name of the holder
  • Date of commencement of activity
  • Date of any cessation

2. Verification Using Our Online Tool

Our VAT number verification tool allows you to quickly check the formal validity of the number, without having to navigate institutional websites.

3. Verification of the Associated Tax Code

For sole proprietorships, the VAT number and Tax Code (Codice Fiscale) may differ. For companies, they generally coincide. Verifying both ensures a more thorough check.

The VIES System: What It Is and How It Works

VIES (VAT Information Exchange System) is the European Union's electronic system for exchanging VAT information. Managed by the European Commission, it allows you to verify whether an economic operator is registered to carry out intra-community operations.

What VIES Is Used For

Registration in VIES is essential for:

  • Intra-community supplies: sale of goods from one EU country to another
  • Intra-community acquisitions: purchase of goods from an EU supplier
  • Intra-EU B2B services: services rendered to VAT-registered entities in other EU countries
  • Reverse charge application: the VAT reverse charge mechanism

How to Verify in VIES

Verification is done on the European Commission VIES portal (ec.europa.eu/taxation_customs/vies):

  1. Select the operator's country (ISO code: IT for Italy, DE for Germany, FR for France, etc.)
  2. Enter the VAT number (without the country prefix)
  3. The system confirms whether the number is valid and registered in VIES
  4. For some countries, the name and address of the holder are also displayed

VIES Registration for Italian Operators

For Italian entities, VIES registration takes place:

  • When opening a VAT number: by checking the appropriate box on form AA7/10 (companies) or AA9/12 (individuals)
  • Subsequently: by submitting a data amendment declaration to the Revenue Agency
  • Registration is immediate, but the Agency has 30 days to carry out checks and potentially revoke it

Why VAT Number Verification Is Important

1. Tax Protection

If you issue an invoice without VAT for an intra-community supply to a party whose VAT number is not valid in VIES, you could be held liable for the unpaid VAT. Preventive verification protects you from this eventuality.

2. Fraud Prevention

VAT fraud, particularly so-called carousel fraud, causes billions of euros in damage every year in the EU. Verifying the VAT numbers of your business partners is the first step in avoiding involvement, even inadvertently, in fraudulent schemes.

3. Regulatory Compliance

Italian and European regulations require verification of the customer's VAT number for applying the VAT exemption regime in intra-community operations. Failure to verify can result in penalties.

4. Commercial Due Diligence

Before entering into a business relationship with a new supplier or customer, verifying the VAT number is a fundamental element of due diligence. A ceased or non-existent VAT number is a warning sign that deserves further investigation.

VAT Number Formats in EU Countries

Each European Union country has a specific format for VAT numbers:

  • Italy (IT): 11 digits
  • Germany (DE): 9 digits
  • France (FR): 2 letters + 9 digits, or 11 digits
  • Spain (ES): 1 letter + 7 digits + 1 letter, or 1 letter + 8 digits
  • Netherlands (NL): 12 characters (9 digits + B + 2 digits)
  • Austria (AT): U + 8 digits
  • Belgium (BE): 10 digits (starts with 0 or 1)
  • Poland (PL): 10 digits
  • Romania (RO): 2 to 10 digits
  • Portugal (PT): 9 digits

Our verification tool automatically recognizes the format and flags any formal errors.

Practical Cases: When to Verify a VAT Number

Case 1: New Italian Supplier

You're about to purchase goods from a new Italian supplier. Before making the payment:

  1. Verify the VAT number on the Revenue Agency website
  2. Check that it is active and that the details match those on the invoice
  3. Also check the Chamber of Commerce registration for a complete picture

Case 2: Intra-Community Transaction

You need to sell goods to a German customer without applying VAT:

  1. Verify the customer's VAT number in VIES before issuing the invoice
  2. Keep proof of the verification (screenshot or PDF printout with date)
  3. Include the complete VAT number (with DE prefix) on the invoice
  4. Complete the Intrastat form if necessary

Case 3: Purchasing Digital Services from Abroad

You purchase software from an Irish company. The transaction falls under the reverse charge regime if both parties are registered in VIES. Verify your VIES registration and that of the supplier before proceeding.

Ceased VAT Number: What It Means and What to Do

A ceased VAT number means that the holder has closed their business or has been removed from the register. The causes may be:

  • Voluntary cessation: the holder has closed their business
  • Official cessation: the Revenue Agency has closed the VAT number due to failure to file annual returns for 3 consecutive years
  • Bankruptcy or liquidation: the company has been declared bankrupt or is in liquidation
  • Death of the holder: in the case of sole proprietorships

If you discover that a supplier's or customer's VAT number has ceased, do not issue or accept invoices from that party. Invoices issued to or from ceased VAT numbers are not deductible for VAT purposes.

Common Mistakes in VAT Number Management

Not Verifying Before Intra-EU Transactions

Many businesses issue VAT-exempt invoices for intra-community supplies without previously verifying the validity of the customer's VAT number in VIES. This exposes them to the risk of having to pay the uncharged VAT plus penalties and interest.

Not Keeping Proof of Verification

A VIES verification is only valid if dated. Always keep a dated copy of the verification performed, as proof of diligence in case of a tax audit.

Confusing Tax Code and VAT Number

For individuals (sole proprietors, professionals), the Tax Code and VAT number are different numbers. For companies, they generally coincide but not always. Always use the correct number in the appropriate context.

Flat-Rate Tax Regime and VAT Number

Taxpayers under the flat-rate regime (regime forfettario) have an active VAT number but with some particularities:

  • They do not charge VAT on invoices (exempt transactions)
  • They cannot deduct VAT on purchases
  • They can still register in VIES for intra-community operations
  • For intra-EU purchases exceeding 10,000 euros per year, they must apply the reverse charge

Useful Tools for Professionals and Businesses

  • Our tool: online VAT number verification for quick and free checks
  • VIES Portal: official verification for intra-community operations
  • Agenzia delle Entrate: official verification of Italian VAT numbers
  • Chamber of Commerce: company searches for complete business information
  • Business Register: verification of business status (active, in liquidation, bankrupt)

Conclusion

VAT number verification is a simple but fundamental operation for the safety and tax compliance of your business. Whether you are a freelance professional, a small business owner, or the administrative manager of a large company, systematically verifying the VAT numbers of your business contacts is a good practice that protects you from tax risks and fraud.

Use our free VAT number verification tool as a quick first check, and remember to always keep documentation of the verifications performed, especially for intra-community operations.