Serbia Tax ID Number (TIN) Guide 

Introduction

A Tax Identification Number (TIN) is a unique identifier issued by tax authorities to individuals, businesses, and legal entities for the purpose of tax administration and compliance. In Serbia, the TIN is crucial for ensuring that taxes are properly reported and paid, and it is required for all legal and financial transactions that involve tax obligations.

This guide provides detailed, accurate, and 100% verified information about the Tax Identification Number (TIN) in Serbia. All the data presented has been sourced from official government tax authority websites to ensure precision and compliance with the latest regulations.

Tax Identification Number Types

In Serbia, the Tax Identification Number is known as the PIB (Poreski Identifikacioni Broj). This is the only official TIN used in the country and is assigned to both individuals and entities for tax purposes.

• PIB (Poreski Identifikacioni Broj): This is the official Tax Identification Number used for both individuals and businesses in Serbia.

Applicable TIN Types:

• Individuals: The PIB is used to identify individuals for personal tax obligations, including income tax.
• Businesses and Entities: The PIB is assigned to legal entities, such as companies, organizations, and other businesses registered in Serbia.

The PIB is issued by the Tax Administration of the Republic of Serbia.

TIN Format and Structure

The PIB in Serbia is a 9-digit number, structured as follows:

• Length: 9 digits.
• Format: The PIB consists entirely of numeric digits, with no letters or special characters.

Structure of the PIB:

• First part: The first 8 digits represent a unique identification number.
• Last part: The last digit serves as a check digit used for validating the number.

Example of PIB: 123456789

In this format:

• 12345678: The unique identifier.
• 9: The check digit used for validation.

This format ensures that each PIB is unique and can be used to track tax obligations correctly.

Issuing Authority and Registration Process

The Tax Administration of the Republic of Serbia (TIRS) is the official body responsible for issuing and managing the PIB.

Official Name of Issuing Authority:

• Tax Administration of the Republic of Serbia (TIRS)
• Official Website: www.poreskisistem.rs

Registration Process:

1. Eligibility Requirements:
   • Individuals: Any person who is subject to tax obligations in Serbia, including employees, freelancers, or property owners.
   • Businesses: Any legal entity, including companies, sole proprietors, non-profits, and other business forms registered in Serbia.
2. Required Documents:
   • For individuals: ID card or passport.
   • For businesses: Business registration certificate from the Serbian Business Registers Agency (SBRA), legal representative identification, and proof of address.
3. Application Process:
   • Online Registration: Individuals and businesses can apply for the PIB through the ePorezi online portal provided by the Tax Administration.
   • Offline Registration: You may apply in person at a local Tax Administration office.
4. Fees: There are no fees for registering a PIB in Serbia.

For the most up-to-date registration process and requirements, visit the official Tax Administration website.

TIN Verification and Lookup

Verifying a PIB is an important step for ensuring tax compliance. Businesses and individuals can verify their PIB using official resources provided by the Tax Administration of Serbia.

How to Verify a PIB:

• Visit the Tax Administration of Serbia’s official website to access the PIB verification tool.
• Input the PIB number into the verification tool to confirm its validity.

Official PIB Verification Tool:

• Tax Administration PIB Verification Page

Or Instantly Verify Tax IDs in Serbia with TaxDo Real-Time TIN Validation Platform 

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

What Makes TaxDo Different? 

• Real-time TIN verification for Serbia and 135+ countries  

• Seamless API integration into your ERP, CRM, or onboarding system 

• Powerful dashboard to manage and track tax ID validations globally 

• Fully compliant and official-source-based results ONLY 

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

📩 Get started today or schedule a free demo to see how TaxDo simplifies tax compliance. 

TIN and VAT Number Connection

In Serbia, the PIB number serves as the VAT number for businesses that are registered for VAT. Businesses engaged in taxable activities need to ensure that their PIB is also registered for VAT purposes.

• VAT Number: In Serbia, the PIB is used as the VAT number for all businesses engaged in taxable transactions.

VAT Number Format:

• The VAT number format is the same as the PIB number, consisting of 9 digits.

Why Accurate TIN Validation Matters 

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

Stay Compliant with TaxDo 

While the Administration of Serbia offers a basic PIN checker, TaxDo takes Serbia 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 Serbia and beyond.