Guideline / Denmark

Denmark Tax ID Number (TIN) Guide 

Introduction

In Denmark, Tax Identification Numbers (TINs) are essential for individuals and businesses to comply with tax regulations. These unique identifiers facilitate accurate tax reporting, social security administration, and other governmental interactions. The information provided here is verified from official Danish tax authority websites and trusted government sources.​ 

Tax Identification Number Types 

Denmark utilizes two primary types of Tax Identification Numbers: 

  1. Personal Identification Number (CPR-nummer): Assigned to individuals.​ 
  1. Central Business Register Number (CVR-nummer): Assigned to businesses and legal entities.​

The CPR number is used for personal identification, while the CVR number serves as the unique identifier for businesses and organizations.​

TIN Format and Structure 

Personal Identification Number (CPR-nummer) 

  • Format: 10 digits in the format DDMMYY-SSSS.​
  • DDMMYY: Represents the individual’s date of birth (Day, Month, Year).​Microsoft Learn 
  • SSSS: A sequence number where the last digit indicates gender (odd for males, even for females).​Wikipedia 

For example, a CPR number could be 010203-1234, indicating a birthdate of February 1, 2003, with a male identifier.​ 

Central Business Register Number (CVR-nummer) 

  • Format: 8 digits.​
    • A unique sequence assigned upon business registration.​

For instance, a CVR number might be 12345678.​ 

Issuing Authority and Registration Process 

Personal Identification Number (CPR-nummer) 

Issuing Authority: The Danish Civil Registration System (CPR), under the Ministry of the Interior and Housing.​ 

Registration Process: 

  1. Eligibility: Individuals residing in Denmark for more than three months (or six months for EU/EEA citizens) must register.​
  1. Required Documents: 
    • Passport or national ID.​
    • Residence permit (if applicable).
    • Proof of address in Denmark.​
  1. Application: Register in person at the local Citizen Service Centre (Borgerservice) or International Citizen Service Centre.​
  1. Fees: There is no fee for obtaining a CPR number.

Central Business Register Number (CVR-nummer) 

Issuing Authority: The Danish Business Authority (Erhvervsstyrelsen).​

Registration Process: 

  1. Eligibility: All businesses operating in Denmark must obtain a CVR number.​
  1. Required Documents: 
  • Business plan and company details.​ 
  • Identification documents of founders.​
  1. Application: 
  • Access requires a Danish NemID or a recognized foreign eID.​
  1. Fees: Registration fees vary depending on the type of business entity.​ 

More details can be found on the Danish Business Authority website.

TIN Verification and Lookup 

Personal Identification Number (CPR-nummer) 

While the CPR number’s format can be verified using the EU TIN on Europa portal, personal data verification is restricted to authorized entities to protect individual privacy.​

Central Business Register Number (CVR-nummer) 

Businesses and individuals can verify CVR numbers through the Central Business Register (CVR) website by searching using the CVR number or company name.​

TIN and VAT Number Connection 

In Denmark, the CVR number also serves as the VAT (Value Added Tax) number for businesses. When a company registers for VAT, the CVR number is used as the VAT identifier, sometimes prefixed with “DK” (e.g., DK12345678) for international transactions.​ 

Importance of Accurate TIN Validation 

Ensuring the accuracy of TINs is crucial for compliance with Danish tax laws. Incorrect TINs can lead to issues in tax filings, business transactions, and may result in legal penalties. Utilizing official verification tools helps maintain accurate records and supports smooth operations both domestically and internationally.​ 

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