How to get a tax id number


Whether you’re starting a business, hiring employees, or engaging in certain financial transactions, obtaining a Tax Identification Number (TIN) is a crucial step. A TIN, also known as a Tax ID number or Employer Identification Number (EIN), is a unique identifier issued by the tax authorities. In this blog, we will guide you through the process of obtaining a tax ID number, making it easier for you to navigate the necessary steps.

Tax Identification Number (TIN) Definition, Types, and How To Get One
Source: Investopedia

Definition and Types of Tax ID Numbers:

A tax ID number is a unique numerical identifier assigned to individuals, businesses, and other entities for tax-related purposes.
Social Security Number (SSN): A nine-digit number issued by the Social Security Administration (SSA) primarily for individual taxpayers.
Employer Identification Number (EIN): A nine-digit number issued by the Internal Revenue Service (IRS) to identify businesses, non-profit organizations, estates, trusts, and other entities.

Importance of Tax ID Numbers:

Tax ID numbers hold significant importance in various aspects of personal and business finances.
a. Identification for Tax Purposes: Tax ID numbers serve as unique identifiers for individuals and entities when filing taxes, ensuring accurate reporting and assessment of tax liabilities.
b. Business Entity Identification: For businesses, an Employer Identification Number (EIN) is crucial. It enables businesses to open bank accounts, file tax returns, hire employees, and engage in financial transactions.
c. Compliance with Tax Regulations: Having a tax ID number is essential to comply with tax laws and regulations. It ensures that individuals and entities meet their tax obligations and fulfill reporting requirements.
d. Facilitating Financial Transactions: Tax ID numbers are often required when conducting various financial transactions, such as opening a business account, applying for credit, or engaging in real estate transactions.
e. Prevention of Identity Theft: Tax ID numbers help in verifying the identity of individuals and entities for tax-related purposes, reducing the risk of identity theft and fraudulent activities.
f. Interaction with Government Agencies: Tax ID numbers are necessary when interacting with government agencies, such as the IRS, for matters related to tax compliance, audits, and inquiries.

Determine Your Eligibility:

Before applying for a tax ID number, it’s important to determine your eligibility. TINs are typically required for various entities, such as businesses, trusts, estates, and non-profit organizations. Individuals may also require a TIN in specific situations, such as when hiring household employees. Assess your situation and confirm whether you need a TIN.

Identify the Appropriate Tax ID Number Application:

Depending on your entity type, there are different application forms to obtain a tax ID number. The most common form is the IRS Form SS-4, Application for Employer Identification Number. This form is used by businesses, non-profit organizations, and other entities.

Gather Required Information:

To complete the tax ID number application, you will need to gather certain information. Prepare the following details:
Legal name and mailing address of the entity or individual applying for the TIN.
Responsible party’s name, Social Security Number (SSN), Individual Taxpayer Identification Number (ITIN), or Employer Identification Number (EIN).
Reason for applying for a TIN.
Estimated number of employees or expected tax filing requirements.

Complete the Application:

Once you have the necessary information, you can proceed with completing the tax ID number application. If applying online, visit the IRS website and follow the instructions provided. If filing by mail, download Form SS-4, fill it out accurately, and mail it to the appropriate address indicated in the instructions.

Understand the Processing Time:

The processing time for a tax ID number application varies depending on the method used and the workload of the tax authorities. Online applications generally receive the TIN immediately upon completion, while mail-in applications may take several weeks. It’s advisable to plan ahead and apply for a tax ID number well in advance to ensure you receive it in a timely manner.

Keep Your Tax ID Number Secure:

Once you receive your tax ID number, keep it safe and secure. Treat it as confidential information, as it is crucial for tax-related matters and may be required for banking and legal purposes. Protecting your tax ID number helps prevent identity theft and potential misuse.


Obtaining a tax ID number is a necessary step for many individuals and entities. By understanding the process and following the steps outlined in this blog, you can simplify the application process and ensure you obtain the appropriate tax ID number for your situation. Remember to gather the necessary information, complete the application accurately, and keep your tax ID number secure once obtained.