In today’s integrated European economy, doing business across borders has become more accessible than ever before—especially within the European Union. One of the most essential tools facilitating cross-border trade between EU member states is the intra-community VAT number, also known as the EU VAT number or community tax number.
But what is this number exactly? Why is it necessary, and what are the pros and cons for businesses that register for it? This article provides a detailed look into how intra-EU trade works and how the EU VAT system supports (and sometimes complicates) business operations across the continent.
What Is an Intra-Community VAT Number?
An intra-community VAT number is a unique tax identification number assigned to businesses in the EU that engage in cross-border transactions within the Union. This number allows a company to trade goods and services across EU member states without charging VAT on sales to other VAT-registered businesses.
In most countries, this number is linked to the domestic VAT registration but has a country prefix (e.g. DE for Germany, HU for Hungary, FR for France).
Example:
- A Hungarian company with VAT: HU12345678
- A German buyer with VAT: DE87654321
If both parties have valid VAT numbers, no VAT is charged on the invoice under the reverse charge mechanism.
Why Is the EU VAT Number Important?
The VAT number is crucial for:
- Avoiding double taxation within the EU
- Applying the reverse charge mechanism
- Demonstrating legitimate business activity
- Filing intra-community reports (e.g. VIES and EC Sales Lists)
- Ensuring compliance with EU tax rules
Without a valid VAT number, a business may be required to charge domestic VAT, even on cross-border transactions.

How Does EU Cross-Border Business Work?
When two EU businesses, both holding valid intra-community VAT numbers, trade with each other:
- The seller issues an invoice with 0% VAT (reverse charge).
- The buyer accounts for VAT in their own country (self-assessment).
- Both parties report the transaction in their local VAT returns and in the EU’s VIES system (VAT Information Exchange System).
This system ensures tax neutrality and prevents fraud—if used correctly.
Advantages of Having an EU VAT Number
Advantage | Explanation |
---|---|
0% VAT on cross-border B2B sales | Enables companies to sell within the EU without charging VAT |
Reverse charge mechanism simplifies invoicing | Reduces cash-flow issues and bureaucracy |
Access to larger EU market | Easier to trade with over 400 million potential customers |
Boosts credibility | Having a valid EU VAT number can increase trust with business partners |
Required for platforms like Amazon or Shopify | Many marketplaces require VAT numbers for sellers operating in the EU |
Disadvantages and Risks of the Intra-Community VAT System
Despite its benefits, there are notable challenges and risks:
Disadvantage | Details |
---|---|
Strict reporting obligations | Monthly or quarterly VIES/EC Sales Lists required |
Risk of VAT fraud | Criminals may exploit the 0% VAT rule for carousel fraud schemes |
Heavy fines for errors or omissions | Even honest mistakes in VAT declarations can lead to penalties |
Complexity with digital services | Special rules apply for digital goods/services under the OSS system |
Invoicing mistakes may invalidate VAT exemption | A missing VAT number or incorrect invoice can trigger VAT liability |
VIES and Validation of VAT Numbers
The VAT Information Exchange System (VIES) is a tool provided by the European Commission that allows businesses to verify the validity of other companies’ VAT numbers across the EU.
Before applying the 0% VAT rule, the seller must:
- Check that the customer’s VAT number is valid
- Keep proof of delivery (especially for goods)
- Clearly state the reverse charge clause on the invoice
Failing to do so can make the seller liable for VAT even if the buyer is in another EU country.

Special Cases: Digital Goods, Services, and OSS
For digital products and services, the rules are slightly different. The One-Stop Shop (OSS) system allows businesses to report and pay VAT in one EU country for sales across multiple member states.
This is useful for:
- SaaS companies
- Online course providers
- E-book or app sellers
In these cases, VAT is charged based on the customer’s location, not the seller’s, even if they are in different countries.
What If a Business Doesn’t Have a VAT Number?
Without an EU VAT number, a business may face:
- Higher costs (VAT must be paid on purchases from other EU companies)
- Limited access to B2B markets
- Non-compliance with EU regulations
In some countries, VAT registration is optional until a revenue threshold is reached, but if you plan to trade across borders, registering early is advisable.

Best Practices for EU Businesses with Intra-Community VAT
- Register for a VAT number early if cross-border trade is likely.
- Use VIES regularly to validate partners’ VAT numbers.
- Maintain clean and accurate records of all cross-border transactions.
- Understand your country’s filing requirements (some require monthly VIES, others quarterly).
- Ensure all invoices include: both parties’ VAT numbers, reverse charge statement, and proof of delivery if needed.
Final Thoughts
The intra-community VAT number is a vital asset for any business operating across EU borders. While it opens the door to a single market with minimal friction, it also brings regulatory responsibilities that can’t be ignored.
Used properly, the system allows for efficient and tax-neutral trade within the Union. However, companies must stay vigilant to avoid compliance issues and penalties.
Thinking of expanding your EU business with a modern, scalable online presence? Contact Rakuzan Technology to build a website that’s ready for cross-border trade and VAT compliance.
Disclaimer: This article is for informational purposes only and does not constitute financial, tax, or investment advice. Readers should consult with a licensed professional before making any financial or business decisions.