What is a TIN number?
A Taxpayer Identification Number (TIN) is a unique identification number used by the IRS to track individuals and entities for tax purposes in the United States. It is required to file a return, submit IRS forms, receive income, or access financial and government services.
There are several types of TINs depending on your status and the purpose of your application:
- SSN (Social Security Number) – for U.S. citizens and eligible residents
- ITIN (Individual Taxpayer Identification Number) – for foreign individuals who are not eligible for an SSN
- EIN (Employer Identification Number) – for businesses, employers, or organizations operating in the U.S.
These nine digit numbers are issued by the IRS and appear on various official documents, including IRS notices, tax returns, and identification forms. A valid identification numbers ensures that your identity is properly linked to your filing obligations and that you comply with U.S. federal tax law.
Who needs a TIN number?
Whether you’re a foreign individual, a nonresident taxpayer, or part of a business entity with U.S. obligations, a TIN is required to comply with IRS regulations and complete your tax filings.
At Expand CPA, we assist a wide range of applicants in obtaining the correct identification number:
- Foreign individuals, permanent residents, or nonresident aliens who need to declare U.S. source income such as rental income, dividends, or investments and who are subject to US individual tax obligations.
- Individuals required to file a return as a dependent, a spouse, or a family member listed on a U.S. tax form
- Individuals needing to create an IRS account or link their identity to an existing legal entity
- Business owners, LLC members, or partners involved in U.S.-based operations
Having the right TIN type—whether it’s an ITIN, EIN, or another form—is essential for accessing financial benefits, fulfilling legal requirements, and ensuring your filing status is recognized by U.S. tax authorities.
How to apply for a TIN number
Applying for a Tax ID Number can be complex, especially for foreign individuals and international entities. Whether you need to apply for an ITIN or request an EIN for your business, our international CPA accountant helps streamline the entire process and ensures your application is handled correctly from start to finish.
Here’s how we support your request:
- Initial review and eligibility check
We assess your status, your type of income, and your needs to determine whether you should apply for an ITIN, an EIN, or another type of TIN. - Prepare and complete the required forms
Our team assists you in gathering and organizing all necessary documentation, and helps you complete forms like IRS Form W-7, tailored to your situation. - Submit your application to the IRS
Once your application file is complete, we submit it to the IRS through the appropriate channels—either by mail or via a certified partner. - Follow-up and processing
We monitor your file status during the IRS processing phase and ensure you receive your Taxpayer Identification Number without unnecessary delays.
From your first request to the issuance of your tax ID number, Expand CPA provides dedicated support to ensure everything is filed correctly, on time, and in full compliance with IRS requirements.
Why choose Expand CPA?
Working with Expand CPA means benefiting from tailored support and in-depth knowledge of the U.S. tax system. We offer:
- A detailed review of your eligibility by professionals familiar with U.S. business structures
- Full assistance with your identification file, including coordination with a certified acceptance agent for ITIN applications
- Additional services for both companies and individuals: tax return preparation, IRS account updates, and administrative formalities
- A local presence in New-York, with a team fluent in both the administration and expectations of the IRS
- A licensed CPA accountant able to guide your business expansion in the US with full compliance with regulations