# Romania Tax ID Number (TIN) Guide

> Learn about Romania’s TIN types (CNP, CUI, VAT) and validate IDs in real time with TaxDo's secure, global tax ID verification platform.

Source: https://taxdo.com/resources/global-tax-id-validation-guide/romania

Last updated: 2025-06-12

In Romania, the Tax Identification Number (TIN) is essential for individuals, businesses, and entities to comply with the country’s tax regulations. This unique identifier is critical for conducting various tax-related activities, such as income tax reporting, VAT registration, and social security contributions. Having the correct TIN ensures smooth operations and compliance with Romanian law. All the information provided in this article is thoroughly verified from official sources to guarantee its accuracy.

## **1\. Tax Identification Number Types**

In Romania, the Tax Identification Number (TIN) is utilized by individuals, businesses, and entities for tax purposes. Below are the types of TINs issued in Romania:

### **1.1 Types of TIN in Romania:**

1. **CNP (Codul Numeric Personal)**:  
  - **Applicable to**: Individuals (Citizens and Residents).
  - The **CNP** is the personal identification number for individuals in Romania. It is used for tax and social security purposes.
  - **Issued by**: The **Romanian Ministry of Internal Affairs**.
2. **CUI (Codul Unic de Înregistrare)**:  
  - **Applicable to**: Businesses, legal entities, and self-employed professionals.
  - The **CUI** is the tax identification number for businesses, corporations, and other legal entities operating in Romania.
  - **Issued by**: The **National Trade Register Office (Oficiul Național al Registrului Comerțului, ONRC)**.
3. **VAT Number (Numărul de Înregistrare în scopuri de TVA)**:  
  - **Applicable to**: Businesses registered for VAT.
  - The **VAT number** is derived from the **CUI** for businesses that are registered for VAT purposes. It is used for all VAT-related transactions.
  - **Issued by**: The **National Agency for Fiscal Administration (ANAF)**.

### **1.2 Applicability:**

- **Individuals**: The **CNP** is used for all personal tax and social security matters in Romania.
- **Businesses and Entities**: The **CUI** is assigned to all businesses and legal entities, while VAT registration requires an additional VAT number, which is essentially the **CUI** prefixed with the **RO** country code.

## **2\. TIN Format and Structure**

Each type of TIN in Romania follows a specific format. Below are the detailed formats for the **CNP**, **CUI**, and **VAT number**:

### **2.1 Format of TIN Types:**

1. **CNP (Codul Numeric Personal)**:  
  - **Format**: The **CNP** consists of 13 digits.  
    - Example: `1900101223457`
    - **Structure**:  
      - **First digit**: Gender identifier (1-2 for males, 3-4 for females).
      - **Digits 2-7**: Date of birth in the format (YYMMDD).
      - **Digits 8-10**: County code.
      - **Digits 11-12**: Serial number.
      - **Digit 13**: A checksum digit used for validation.
2. **CUI (Codul Unic de Înregistrare)**:  
  - **Format**: The **CUI** consists of 10 digits.  
    - Example: `1234567890`
    - **Structure**:  
      - **First digit**: Indicates the entity type (e.g., 1-5 for companies, 7 for non-profits).
      - **Digits 2-9**: A unique identifier assigned to the business or entity.
      - **Digit 10**: A checksum digit for validation.
3. **VAT Number**:  
  - **Format**: The **VAT number** in Romania is the **CUI** prefixed with the **RO** country code.  
    - Example: `RO1234567890`
    - **Structure**:  
      - **RO**: Country code for Romania.
      - **Digits 1-10**: The **CUI** number assigned to the business.

## **3\. Issuing Authority and Registration Process**

The **Romanian Tax Authority (ANAF)** and the **National Trade Register Office (ONRC)** are responsible for issuing TINs in Romania. Below is a step-by-step guide for the TIN registration process:

### **3.1 Issuing Authorities:**

- **National Agency for Fiscal Administration (ANAF)**: Responsible for the issuance of VAT numbers and CUI for businesses.
- **National Trade Register Office (ONRC)**: Responsible for the issuance of **CUI** for companies and entities.
- **Ministry of Internal Affairs**: Responsible for issuing the **CNP** for individuals.

### **3.2 Registration Process for Individuals (CNP):**

1. **Eligibility**: All Romanian citizens and residents need a **CNP** for personal tax and social security registration.
2. **Documents Required**:  
  - **Romanian citizens**: National ID or birth certificate.
  - **Foreign residents**: Passport and proof of residence.
3. **Application Process**:  
  - **Online**: Individuals can apply for the **CNP** through the Ministry of Internal Affairs website.
  - **In-person**: Individuals can apply at the local registry office (Serviciul Public Comunitar de Evidență a Persoanelor).
4. **Fees**: No fee for obtaining the **CNP**.

### **3.3 Registration Process for Businesses (CUI and VAT):**

1. **Eligibility**: Businesses must register for a **CUI** when they are established in Romania. If they plan to conduct VAT-related activities, they must also register for a VAT number.
2. **Documents Required**:  
  - Proof of business registration.
  - Identification of the business owner or legal representative.
  - Proof of the business address.
3. **Application Process**:  
  - **Online**: The **CUI** and **VAT** numbers can be obtained through the **ANAF** website and the **ONRC** website.
  - **In-person**: Businesses can visit the **National Trade Register Office** or the **ANAF** office to register.
4. **Fees**: Fees are generally minimal for business registration.

## **4\. TIN Verification and Lookup**

Individuals and businesses can verify their **CNP**, **CUI**, and **VAT** numbers using official online tools provided by the Romanian Tax Authority.

###   **Verification Tools:**

**[ANAF](https://www.anaf.ro/)** offers an online tool to verify **VAT numbers**:

**[ONRC](https://www.onrc.ro/)** provides a tool to verify business registration and **CUI** numbers

**Or Instantly Verify Tax IDs in Romania with [TaxDo Real-Time TIN Validation Platform](https://taxdo.com/services/tax-id-validator)** 

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Whether you’re conducting due diligence, onboarding clients, granting tax exemption, or managing vendor compliance in Romania, **TaxDo helps you avoid risks, delays, and penalties with effortless global Tax ID validation.** 

## **5\. TIN and VAT Number Connection**

In Romania, the **VAT number** is directly linked to the **CUI**. The **CUI** serves as the primary business identification number, and for VAT-registered businesses, the **CUI** is prefixed with **RO** to form the **VAT number**.

#### **VAT Number Format**:

- **Format**: `RO1234567890` (Where `1234567890` is the **CUI** number).
- The **VAT number** is used for all VAT-related transactions in Romania, including intra-community trade within the EU.

## **6.** **Why Accurate TIN Validation Matters** 

Ensuring the accuracy of your TIN is critical for both businesses and individuals in Romania. An incorrect or unverified TIN can lead to serious complications such as: 

- Delays in tax processing
- Rejection of tax exemption claims
- Fines and penalties for non-compliance
- Rejection of e-invoicing submissions
- Onboarding unqualified suppliers or customers
- Data quality issues across finance and compliance systems

Using the Romanian Tax Authority portal or **[TaxDo real-time global tax ID verification platform](https://taxdo.com/services/tax-id-validator)** ensures accurate Tax ID validation, error reduction, and full compliance with Romanian tax laws. 

## **7\. Stay Compliant with TaxDo** 

While the Romanian Tax Authority offers a basic PIN checker, **TaxDo takes Romania TIN validation to the next level** with real-time results, periodic revalidation for ongoing compliance, and seamless integration into your systems. 

With TaxDo, you can automate Tax ID validation, monitor changes, and ensure continuous compliance, all from a single, user-friendly dashboard or through API connectivity. 

**TaxDo is trusted by leading enterprises, platforms, and compliance teams worldwide.** Try it now and eliminate the risks of Tax ID errors in Romania and beyond.

## Frequently asked questions

### What are the types of Tax Identification Numbers (TINs) in Romania?

Romania issues three key types of TINs:

- **CNP (Codul Numeric Personal)** – For individuals; used for personal tax and social security.
- **CUI (Codul Unic de Înregistrare)** – For businesses and legal entities; used for tax reporting.
- **VAT Number** – For VAT-registered businesses; derived from the CUI and prefixed with “RO”.  
Each TIN is required for specific tax and regulatory functions, and is assigned by different government agencies.

### How can I get a CNP or CUI in Romania?

- **CNP (for individuals):** Issued automatically to Romanian citizens; foreign residents must apply via the Ministry of Internal Affairs with valid ID and proof of residence.
- **CUI (for businesses):** Assigned at company registration via the **ONRC**. VAT numbers are issued by **ANAF** for businesses engaged in taxable activities.

### How do I verify a Romanian TIN such as CNP, CUI, or VAT Number?

You can validate Romanian TINs via:

- **ANAF’s VAT verification portal** for VAT numbers.
- **ONRC’s online search tool** for verifying CUI and business registrations.  
For real-time, cross-border validation, **TaxDo** offers secure API-based TIN verification across **135+ countries**, including Romania, using only **official government sources**.

### Is the VAT number in Romania the same as the CUI?

Yes, for businesses registered for VAT, the **VAT number** is the **CUI prefixed by “RO”**.  
**Format Example**:

- CUI: `1234567890`
- VAT Number: `RO1234567890`  
This number is used in all domestic and EU VAT transactions.