Summary
- Every individual and business operating in Singapore needs a Tax Identification Number for tax and regulatory purposes
- For citizens and PRs, the NRIC serves as the TIN, while foreigners use their FIN
- For companies and organisations, the Unique Entity Number functions as the business TIN
- TIN is used for tax filing, banking, CPF contributions, licensing, and government transactions
- In short, your TIN is your official tax identity and enables the government to track compliance and process tax matters efficiently
When filing taxes or interacting with government agencies, have you come across the acronym TIN or Singapore TIN?
Has it left you stumped about what it means?
Don't fret, for we have you covered.
In this article, we will take you through:
- What is a Tax Identification Number in Singapore
- How to check a Singapore Tax Identification Number
- The difference between an individual TIN and a TIN for a Singapore company
- How you can obtain a tax identification number in Singapore in 2026
Understanding the Tax Identification Number (TIN) in Singapore
When filing taxes or interacting with government agencies for specific tasks, the government will ask you to furnish a unique set of alphanumeric combinations to identify you.
This identification key is called a Tax Identification Number, or a TIN.
Think of TIN as similar to your bank account number. Every individual and organisation has a bank account number specifically assigned to them. Without a bank account number, it wouldn't be possible to identify the correct account.
A TIN allows governments and government agencies to process tax-related transactions.
Types of tax identification numbers and how they are structured in Singapore
As mentioned, your Singapore TIN is the cornerstone for tax monitoring issued by IRAS.
This number and its format vary depending on the entity of the holder.
- National Registration Identity Card (NRIC)
If you are a citizen or permanent resident in Singapore, you will be assigned an NRIC number, which also serves as your tax reference number (TRN) or TIN.
- Foreign Identification Number (FIN)
The Singapore tax number for foreign nationals residing here and having a valid work permit is also known as the Foreign Identification Number (FIN). FIN is issued by the Ministry of Manpower (MOM)5 or the Immigration and Checkpoints Authority (ICA). The FIN assists the government in ensuring that foreign residents fulfil their tax responsibilities while residing and working in Singapore.
- Unique Entity Number (UEN)
Even businesses registered in Singapore are assigned a tax number, the Unique Entity Number (UEN).
Whether it is a business, local company, foreign company, or a society registered in Singapore, a UEN must be obtained from the government agencies.
How is a Singapore TIN Structured for Businesses
here,
Format symbols:
Common entity codes:
Importance of Singapore Tax Identification Number in 2026
You require a tax identification number to meet certain compliance requirements and access tax filing services.
Here are the key uses of your TIN in Singapore.
1. To open a bank account
You must submit government-issued tax documents displaying your TIN to open a bank account in Singapore.
2. Needed for financial compliance
The most important reason to obtain a Singapore tax identification number is to comply with government financial regulations.
3. Making Central Provident Fund payments
As a business, when you remit Central Provident Fund (CPF) payments to your employees, you will be required to disclose your own and your employees' TINs. That helps the government keep track of CPF payments and levy taxes accordingly.
4. Import and export permits
Another important transaction that requires the TIN is when your business engages in importing or exporting products and services. The government needs clarity about the money spent or generated from foreign sources. The foreign income or expense will be taxed accordingly.
5. Updating information
Suppose you want to update your information on the Accounting and Corporate Regulatory Authority of Singapore's BizFile system. In that case, you must use the TIN to access the site and make the required changes.
How to apply for a Tax Identification Number (TIN) in Singapore in 2026
For individuals
Individuals do not need to apply for a TIN separately. The TIN is automatically assigned based on your identification number.
Once you receive your NRIC or FIN, it automatically functions as your TIN for tax purposes with the Inland Revenue Authority of Singapore (IRAS). You can access and manage your tax records through SingPass or the IRAS myTax Portal.
For businesses
Even businesses do not apply for a Tax Identification Number (TIN) separately. Instead, the UEN serves as the company's TIN with the Inland Revenue Authority of Singapore (IRAS).
For UEN, you must register your entity with the relevant government agency. Once registration is complete, a UEN is automatically issued.
Enterprise Singapore may issue or manage UEN-related registrations for entities participating in government-supported programmes, industry bodies, or specific regulated sectors.
For most companies, including private limited companies, sole proprietorships, and partnerships, the UEN is issued at the time of business registration with ACRA via the BizFile portal.
How to check Tax Identification Number in 2026
For individuals
Singapore citizens and permanent residents: Your NRIC number serves as your TIN, which appears on your National Registration Identity Card. It's labelled as ‘Identity Card No.’ on the front of your card.
Foreign nationals: Your FIN is used as your TIN. You can find it on your:
- Work pass or employment pass
- Student pass
- Immigration documents from ICA or MOM4
- SingPass account
- IRAS Unique Account
For businesses
To check for your company's TIN or the UEN:
- Go to the BizFile website
- Search for the company name in the search bar
You can also check another entity's UEN:
- First, confirm whether the entity is registered with ACRA or another agency.
- If registered with ACRA, search for the company's UEN on BizFile.
Managing your Tax Identification Number: Best practices in 2026
Use the following tips to ensure efficient management of your personal or business TIN.
1. Be aware of your tax responsibilities
First, you must be aware of your personal or business-related tax responsibilities. To do this:
- Check your tax records regularly
- Ensure the information is accurate without discrepancies
- Rectify any issues immediately
- Maintain physical and electronic records of all transactions
- Keep bank statements and a valid Singapore tax identification number
2. Update yourself regularly
Stay up to date with Singapore's latest tax laws, compliance requirements, and regulations to avoid penalties.
This will also ensure you can make the most of any government benefits, incentives, or deductions when filing taxes.
Tip: Visit IRAS announcements regularly for updates.
3. File taxes accurately
Don't forget to file your taxes promptly. This applies to individuals and businesses alike.
To ensure financial compliance, the best thing you can do is provide accurate documentation that includes a detailed and proper record of all financial transactions. Businesses and companies registered in Singapore must maintain financial records for at least five years.
Note: The individual income tax filing deadline is typically April 18 each year.
Final Word
No matter who you are, if you reside in Singapore, you must have a Tax Identification Number. As you've now learnt, your TIN is beneficial for various purposes beyond just tax filing.
If you're employed, you require your TIN to receive Central Provident Fund contributions. If you're a business owner, you need it to carry out import/export trades and update all relevant information with government agencies.
Knowing your TIN now lets you focus on what really matters: expanding your business or career in Singapore.
Beyond incorporation: How Aspire supports your business operations
Incorporation is an exciting milestone. It makes your idea official. It gives your business a name, a UEN, and a legal presence in one of the world's most business-friendly environments.
But once the certificate is issued, the real journey begins.
Every new company needs a strong financial foundation to operate with confidence. You will need a clear way to create and send invoices, pay employees and suppliers, manage expenses, and keep proper records. As transactions grow, so does the need for visibility and control.
Putting the right financial systems in place early helps you:
- Stay organised from day one
- Manage cash flow with clarity
- Avoid unnecessary compliance stress
- Build trust with partners and stakeholders
- Scale without constantly fixing back-end processes
Frequently Asked Questions
A Singapore TIN number is a unique identifier assigned to individuals and entities for tax purposes.
It is utilised for multiple financial transactions, such as tax submission and bank account establishment.
A Tax Reference Number (TRN) is a unique identifier issued by the Inland Revenue Authority of Singapore to all citizens, permanent residents, and non-residents in Singapore. It is important to note that TRN and TIN are often used interchangeably in Singapore. For individuals, the NRIC or FIN serves as the TRN, and for businesses, the UEN serves as the TRN.
All citizens residing in Singapore, as well as businesses and companies registered in Singapore, need a TIN for tax purposes.
The IRAS automatically assigns a TIN to individuals when they register with it.
Similarly, businesses and companies are assigned a unique identifier when they register with the Accounting and Corporate Regulatory Authority (ACRA).
The minute foreigners start working or earning in Singapore, IRAS assigns them a TIN.
Yes, your business will need a TIN to legally operate in Singapore. The IRAS automatically allocates this number when you register with ACRA.
The TIN is the holder's unique identifier.
It must be submitted while filing taxes to ensure tax compliance.
It is also needed for efficient recordkeeping and serves as a vital tool for communication between the payer and the tax authority.
The primary purpose of a TIN is taxation. So, there's no other possible non-tax use of it. It is an identifier that helps government agencies identify you or your business in Singapore's tax system.
A TIN is needed once you start working and earning, whether you are a foreigner or a foreign company registered in Singapore.
Typically, a TIN is assigned whenever you register yourself or your business with IRAS. However, any failure or delay in filing and paying taxes or non-compliance can attract penalties ranging from fines to legal consequences.
Your TIN is specific to Singapore, and the taxation system varies from country to country.
However, if you are a foreign resident or company registered in Singapore, your home country might request your TIN for taxation purposes to avoid double taxation.
Your UEN is a permanent identifier for your business, and you don't need to renew it.
Yes, you will need a TIN or a UEN for any import or export permit in Singapore. It is mandatory to have a TIN to file corporate tax returns and obtain import/export licences.
To authenticate your company's TIN or UEN, go to the BizFile website3 and search using your company's name.
BizFile allows searching for UENs of other registered businesses in Singapore, enabling prompt verification of any company's registration.
If you think someone misused your TIN or can't access it, contact IRAS. They will assist you in securing your tax and financial information.
- Inland Revenue Authority of Singapore (IRAS) - https://www.iras.gov.sg/
- Accounting and Corporate Regulatory Authority (ACRA) - https://www.acra.gov.sg/
- BizFile Portal - https://www.bizfile.gov.sg/
- Immigration & Checkpoints Authority (ICA) - https://www.ica.gov.sg/
- Ministry of Manpower (MOM) - https://www.mom.gov.sg/
- Singapore's open data portal - https://data.gov.sg/datasets/d_b1d2b840ab9e993570c037b706b39bb8/view
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