What is an EU VAT Number? What is the purpose of an EU VAT Number?
Entrepreneurs who want to sell goods or provide services within the European Union must remember about additional tax obligations. One of them is the registration for EU VAT (VAT-UE), commonly referred to as obtaining an “
For many companies, this is a formal requirement, but in practice the EU VAT number plays a much more important role — it enables lawful, safe, and compliant cooperation with business partners from other EU member states. Without this number, it is not possible to apply the 0% VAT rate for intra-EU supplies of goods (WDT), correctly account for B2B services, or easily verify a partner’s status in the VIES system.
As an accounting office, we know very well how strongly correct EU VAT registration affects daily settlements and a company’s overall tax compliance. That’s why in this article we explain, step by step:
- what exactly an EU VAT number is,
- who is required to obtain it,
- what the entire registration process looks like,
- how to verify whether the number is active,
- and why having it is so important in EU trade.
What is an EU VAT number?
The EU VAT number is a tax identification number used for intra-EU transactions. It does not function as a separate new number — the identification is based on the Polish VAT number (NIP), which is supplemented with the country prefix “PL.”
Example:
PL + 10-digit NIP → PL1234567890
A number formatted in this way allows foreign tax administrations to verify the entrepreneur’s status as an EU VAT taxpayer. Its active status is visible in the VIES system and enables the application of rules that apply within the EU’s single market.
How to distinguish an EU VAT number from the national NIP?
The structure of the EU VAT number is simple:
- the NIP number always consists of 10 digits,
- a two-letter country code is added to the number (for Poland: PL).
The difference therefore comes down solely to the prefix. It is this code that indicates the number is being used for EU VAT purposes.
Who is required to have an EU VAT number?
Many entrepreneurs are unaware that the obligation to obtain an EU VAT number applies not only to active VAT taxpayers but also to some businesses that are VAT-exempt.
Below we describe both groups.
1. Active VAT taxpayers
Every entrepreneur registered as an active VAT taxpayer must apply for an EU VAT number if they:
- carry out intra-EU supplies of goods (WDT),
- acquire goods from companies in other EU countries (WNT),
- provide B2B services to foreign contractors,
- purchase services from EU-based companies that are settled under the reverse-charge mechanism.
Registration for EU VAT is required even if the first EU transaction is only being planned. Not having an active number may result in incorrect VAT settlement or the inability to apply the 0% VAT rate.
2. VAT-exempt taxpayers
Entrepreneurs who are exempt from VAT — whether due to low turnover or because they qualify for an objective exemption — are also required to register for EU VAT in certain situations.
This obligation applies to businesses that:
- purchase services from EU contractors for which the place of taxation is Poland,
- exceed PLN 50,000 in intra-EU acquisitions of goods (WNT) per year,
- carry out transactions for which the regulations require identification with an EU VAT number.
This means that even a micro-entrepreneur who purchases an online service from another EU country may be required to register.
How to obtain an EU VAT number? Step-by-step procedure
Obtaining an EU VAT number is free of charge and relatively simple. You only need to submit the correct form and wait for your number to be activated in the VIES system.
Step 1: Completing the VAT-R form
The process is based on the VAT-R form, in which section C.3 — the part concerning intra-EU transactions — must be completed.
If:
- if you are only now registering as a VAT taxpayer — you submit the entire form,
- if you are already an active VAT taxpayer — you submit an updated VAT-R form.
Step 2: Where to submit the documents?
The EU VAT registration application can be submitted:
Electronically:
- via the e-Tax Office (e-Urząd Skarbowy),
- via the e-Declarations system (e-Deklaracje),
- using a trusted profile or a qualified electronic signature.
Traditionally:
- in paper form at the tax office.
In both cases, the procedure is completely free — the tax office does not charge any fees for assigning the number.
Step 3: How long does EU VAT number activation take?
In theory, the tax office should complete the registration without delay. In practice, this usually takes:
from a few days to several days,
sometimes longer if additional verification is required.
Until the number appears in the VIES system, you should not carry out any EU transactions — only once it is visible in the database does it mean the number is active.
How to check the validity of an EU VAT number?
Verifying an EU VAT number is mandatory for every intra-EU transaction. This ensures that the business partner is an active EU VAT taxpayer and that the 0% VAT rate can be applied.
Verification in the VIES system
To verify a number, you need to:
- go to the VIES website,
- select the country,
- enter the EU VAT number,
- click “Verify.”
A “Valid” result means that the contractor is active.
Automatic verification in accounting software.
Modern accounting software allows for ongoing verification of EU VAT numbers without the need to log in to VIES. This is especially useful for companies that regularly work with foreign partners.
Automatic verification:
- reduces the risk of errors,
- streamlines invoicing processes,
- helps avoid incorrect VAT rates,
- ensures compliance with regulations.
Why is having an EU VAT number so important?
Registering for EU VAT provides entrepreneurs with several concrete benefits:
1. 0% VAT rate for intra-EU supply of goods (WDT)
To apply the 0% VAT rate when supplying goods to another EU country, it is necessary to:
- have an active EU VAT number,
- verify the contractor’s status in the VIES system.
Not being registered makes it impossible to apply the 0% rate — which generates real tax costs.
2. Correct settlement of B2B services (reverse charge)
In many service transactions, VAT is accounted for by the buyer in their own country. To document such a transaction correctly, both parties must use an EU VAT number.
3. Credibility and tax compliance
An active EU VAT number demonstrates a company’s reliability and makes it easier to establish cooperation with foreign partners. Contractors often verify a business in the VIES system before entering into a partnership.
FAQ – the most frequently asked questions about the EU VAT number
Is the EU VAT number the same as NIP-5?
No. The NIP-5 form confirms the assignment or update of the national NIP. The EU VAT number refers to registration for EU VAT (VAT-UE).
Does a VAT-exempt entrepreneur need an EU VAT number?
Yes — if they purchase services from the EU or exceed the WNT threshold.
How many digits does the EU VAT number have?
10 NIP digits + the “PL” prefix.
How can I check whether the number is active?
In the VIES system — the official database of the European Commission.
What if my number does not appear in VIES?
In most cases, you simply need to wait a few days after submitting the VAT-R form. If the delay is longer, it is advisable to contact the tax office.
Can the EU VAT number be used in domestic transactions?
No — domestic transactions require the standard national NIP.
Do you want to be sure that your company is settling EU transactions correctly?
As the Ekoconsultant accounting office:
- we ensure full compliance with current regulations,
- we monitor changes in VAT and EU reporting requirements,
- we assist with EU VAT registration and contractor verification,
- and we support entrepreneurs in safely settling international transactions.
Contact us if you need assistance with EU VAT registration or want to make sure your settlements are handled correctly.
