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.​ 

2. 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).​

• SSSS: A sequence number where the last digit indicates gender (odd for males, even for females).​

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.​

2. Required Documents: 
   • Passport or national ID.​
   • Residence permit (if applicable).
   • Proof of address in Denmark.​

3. Application: Register in person at the local Citizen Service Centre (Borgerservice) or International Citizen Service Centre.​

4. 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.​

2. Required Documents: 

• Business plan and company details.​ 

• Identification documents of founders.​

3. Application: 

• Register online via the Start Company portal.​

• Access requires a Danish NemID or a recognized foreign eID.​

4. 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.​

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TaxDo offers a compliant, automated, and globally trusted solution for TIN verification—not just in Denmark, but across 135+ jurisdictions. Unlike other solutions, TaxDo validates tax IDs instantly and securely using only official government sources. 

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

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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.​ 

Why Accurate TIN Validation Matters 

Ensuring the accuracy of your TIN is critical for both businesses and individuals in Denmark. 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 official Danish tax authority or TaxDo real-time global tax ID verification platform ensures accurate Tax ID validation, error reduction, and full compliance with Denmark tax laws. 

Stay Compliant with TaxDo 

While the official Danish tax authority offers a basic PIN checker, TaxDo takes Denmark 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 Denmark and beyond.