
VAT ID verification is indispensable for car dealers in EU trade. Anyone selling vehicles to commercial customers in other EU countries must verify the buyer’s VAT identification number — otherwise, significant tax surcharges may apply. AutoPult automates VAT ID verification via the European VIES system and documents the result in an audit-proof manner.
What Is a VAT ID (VAT Identification Number)?
The VAT identification number (VAT ID) is a unique identifier for businesses within the European single market. In Germany, it is issued by the Federal Central Tax Office (BZSt) and serves for identification in intra-Community transactions.
Structure of VAT IDs
Every VAT ID begins with a two-letter country code, followed by a country-specific character sequence:
- DE + 9 digits (Germany)
- AT + U + 8 digits (Austria)
- NL + 12 characters (Netherlands)
- PL + 10 digits (Poland)
- IT + 11 digits (Italy)
- FR + 2 characters + 9 digits (France)
Why Is the VAT ID Important?
In intra-Community trade, the VAT ID enables:
- Tax-exempt supplies to EU businesses
- Identification of the business partner as a taxable person
- Correct classification in the EC Sales List (Zusammenfassende Meldung)
- Proof of taxable person status for reverse charge
- Mandatory field on e-invoices for intra-Community supplies
How VAT ID Verification Works — Step by Step
Enter VAT ID
When creating a customer record or before a sale, you enter the EU customer’s VAT ID. AutoPult automatically checks the format and country code for plausibility.
Request Qualified Confirmation
AutoPult automatically sends the request to the BZSt, which checks the VAT ID against the database of the country of origin. For the qualified confirmation, name, address, and city are additionally verified.
Review and Document Result
The verification result is automatically saved with timestamp, BZSt reference number, and the verified data. If the VAT ID is invalid, AutoPult prevents the creation of a tax-exempt invoice.
Re-Verify Before Every Sale
Even for existing customers, the VAT ID is re-verified before every vehicle sale. A VAT ID may have become invalid in the meantime — AutoPult warns you automatically.


Simple vs. Qualified Confirmation
| Feature | Simple Confirmation | Qualified Confirmation |
|---|---|---|
| Scope of verification | VAT ID validity only | VAT ID + name + address + city |
| Result | “VAT ID valid” or “invalid” | Detailed verification of all data |
| Legal certainty | Basic | Maximum protection |
| Recommendation for car trade | Not sufficient | Strongly recommended |
| AutoPult | Supported | Standard for vehicle sales |
| Processing time | Instant (seconds) | Instant to a few minutes |
Risks Without VAT ID Verification
Tax Surcharge
Without a valid VAT ID from the buyer, the intra-Community supply is not tax-exempt. You owe 19% VAT on the full selling price — for a vehicle worth €30,000, that’s a €5,700 surcharge.
Criminal Proceedings
Systematic failure to verify can give the tax authority grounds to suspect tax evasion or negligent tax reduction. This can lead to criminal proceedings and substantial fines.
Liability for Carousel Fraud
In the context of VAT carousel schemes, you as a good-faith dealer can be held jointly liable if you cannot demonstrate that you fulfilled your due diligence obligations in VAT ID verification.

The VAT Information Exchange System (VIES) is an online system operated by the European Commission for verifying…
The VIES System: European VAT ID Verification
The VAT Information Exchange System (VIES) is an online system operated by the European Commission for verifying VAT identification numbers of all EU member states. In a VIES query, the VAT ID is checked against the database of the respective EU member state.
Limitations of the VIES System
VIES can only confirm whether a VAT ID is valid at the time of the query. It cannot guarantee that the business partner actually exists, is solvent, or will properly declare the goods in their country. That’s why tax advisors recommend additional due diligence measures — especially for new customers and high-value transactions. The VIES databases of individual countries are also not always accessible. AutoPult automatically retries the verification and keeps you informed of the status.
AutoPult: Automated VAT ID Verification
Automatic Verification
- VAT ID is verified when creating a customer
- Qualified confirmation via the BZSt
- Parallel VIES verification as fallback
- Re-verification before every sale
- Warning for invalid or expired VAT IDs
Audit-Proof Documentation
- Verification result saved with timestamp
- BZSt reference number archived
- Linked to the sales transaction
- Accessible in the DMS
- Exportable for tax audits

VAT ID Verification in EU Vehicle Trading
In intra-Community vehicle trading, special rules apply. The supply of a vehicle to a business in another EU member state is tax-exempt under the following conditions:
- Valid VAT ID: The buyer is a business with a VAT ID confirmed by the BZSt via qualified confirmation
- Physical transfer: The vehicle is actually transported to another EU member state
- Proof of arrival: A proof of arrival (Gelangensbestätigung, §17a UStDV) or equivalent evidence is available
- EC Sales List: The supply is correctly reported in the EC Sales List to the BZSt
- Invoice requirements: VAT IDs of both parties and reference to tax exemption on the invoice
If even one of these conditions is missing, the supply is taxable. AutoPult automatically checks all conditions and warns you if anything is missing.
Integration with Other AutoPult Modules
Invoicing Software
The verified VAT ID is automatically included in the invoice. If the VAT ID is invalid, no tax-exempt invoice is created — protecting you from tax surcharges.
E-Invoicing
The VAT ID is a mandatory field in e-invoices (ZUGFeRD/XRechnung). AutoPult automatically inserts the qualified-verified VAT ID and documents the verification status.
DATEV Export
During the DATEV export, intra-Community supplies are correctly flagged and transmitted with the verified VAT ID of the buyer — for your tax advisor’s EC Sales List reporting.
Automate VAT ID Verification
Use AutoPult’s free VAT ID checker or integrate automatic verification into your sales process.