Understanding the different identification numbers needed for personal and business purposes is important for staying compliant and running smoothly. Two key identifiers people often discuss are the state ID number and the tax ID number. In this article, we’ll explain what a this number is, why it’s important, and how it differs from a tax ID number.

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ToggleWhat Is a State ID Number?
A state ID number is a unique identifier given by your state’s Department of Motor Vehicles (DMV) or a similar agency. You’ll typically find this number on your driver’s license, state-issued ID card, or learner’s permit. It acts as a personal code that helps government agencies, businesses, and organizations identify you within the state’s system. The format of the this number can differ from state to state. For instance, California uses “D1234567,” while Texas uses “012345678.”
Importance of a State ID Number
Your state ID number plays a crucial role in many aspects of life:
- Filling Out Official Documents: A state ID number is commonly required when applying for jobs, enrolling in college, or signing up for government benefits. It helps verify your identity for official processes.
- Accessing Services: You’ll need your state ID number to renew your vehicle registration, obtain a fishing license, or access other state-provided services, ensuring you’re recognized within the state’s system.
- Opening Bank Accounts: Banks require your state ID number to verify your identity when opening a new account, helping prevent fraud and ensuring that you are a legitimate customer.
- Traveling Within the U.S.: Your state ID number may be necessary for certain travel-related activities, such as booking domestic flights or checking into hotels, to confirm your identity.
In short, your number isn’t just a random number; it’s an important piece of information that keeps many parts of your life running smoothly. Learn more about What Is the Penalty for Filing Taxes Late.
How to Obtain a State ID Number
To find your state ID number:
- On Your Driver’s License or ID Card: Check both sides of your card; the number is typically located near your name, address, or photo.
- Through Your State’s DMV Website: Log in using your Social Security number or another form of identification to access your state ID number.
- Contacting the DMV Directly: If online options aren’t available, call your local DMV for help.
If you’ve lost your number, reaching out to your state’s DMV is the most reliable way to retrieve it.

What Is a Tax ID Number?
A tax ID number is used for tax purposes and comes in different types:
- Employer Identification Number (EIN): Issued by the IRS to businesses for federal tax purposes. Allowing them to legally operate and file taxes.
- Individual Taxpayer Identification Number (ITIN): Issued by the IRS to individuals who aren’t eligible for a Social Security Number but still need to file taxes or report income.
- State Tax ID Number: Issued by state tax agencies for tax-related matters at the state level, including sales tax, income tax, and other state-specific obligations.
Each of these numbers helps identify taxpayers within their respective systems.
Key purposes & Differences: State ID and Tax ID Numbers
State ID and Tax ID numbers are used for identification, but serve different purposes and are issued by different authorities. Here’s a detailed comparison of their key differences:
A. Issuing Authority
The Number is issued by the state government. Typically through the Department of Motor Vehicles (DMV) or a similar state agency. The Tax ID Number (EIN/ITIN), on the other hand, is issued by federal or state tax agencies, such as the IRS.
B. Purpose
The State ID Number is primarily used for personal identification within the state. Providing access to state services and functions like driving, voting, and enrolling in schools. In contrast, the Tax ID Number (EIN/ITIN) is used for tax purposes, such as filing taxes, hiring employees, and managing business operations.
C. Format
The State ID Number varies in format depending on the state, but it generally consists of an alphanumeric sequence. The Tax ID Number (EIN/ITIN), however, consists of 9 digits, with both EIN and ITIN following the same format.
D. Required For
A State ID Number is necessary for obtaining state services, personal identification, and engaging in activities like driving or voting. A Tax ID Number (EIN/ITIN) is required for tax filing, hiring employees, opening business accounts, and conducting other business operations.
E. Application Process
To obtain a State ID Number, individuals typically apply through the DMV or their state’s designated agency. For a Tax ID Number (EIN/ITIN), individuals and businesses must apply through the IRS or their state’s tax agency.
Understanding the differences between State ID and Tax ID numbers is crucial for ensuring compliance with both state and federal regulations.
How to Obtain a Tax ID Number
To obtain a tax ID number:
- Employer Identification Number (EIN): Issued by the IRS to businesses for federal tax purposes. Allowing them to legally operate and file taxes.
- Individual Taxpayer Identification Number (ITIN): Issued by the IRS to individuals who aren’t eligible for a Social Security Number but still need to file taxes or report income.
- State Tax ID Number: Issued by state tax agencies for tax-related matters at the state level. Including sales tax, income tax, and other state-specific obligations.
It’s important to apply for the correct tax ID number based on your specific needs and situation.

Conclusion
In conclusion, while both state ID numbers and tax ID numbers are identifiers, they serve different purposes. And are issued by different authorities. A state ID number is used for personal identification within the state. Whereas a tax ID number is necessary for tax-related matters. Understanding these differences helps individuals and businesses stay compliant with relevant regulations.
For expert assistance with managing your state and federal tax identification needs, Freedomfolio provides tailored services to meet your requirements.