<s>[INST] How can I get an EIN for my new business? [/INST] An Employer Identification Number (EIN) is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to businesses in the United States for tax purposes. To obtain an EIN for your new business, follow these steps:

1. Determine eligibility: Ensure that your business is located in the United States or its territories, and that you have a valid Social Security Number (SSN), Individual Taxpayer Identification Number (ITIN), or another valid taxpayer identification number.

2. Apply online: The easiest and fastest way to obtain an EIN is to apply online through the IRS website. The online application is available Monday through Friday, 7 a.m. to 10 p.m. Eastern Time. Visit the IRS EIN Assistant at: https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-number-ein-online

3. Complete the application: Fill out the required information about your business, including its legal name, physical address, mailing address, responsible party, and business structure (e.g., sole proprietorship, partnership, corporation, etc.).

4. Submit the application: After reviewing your information, submit the application. If your application is complete and valid, you will receive your EIN immediately.

5. Record your EIN: Once you receive your EIN, store it in a secure location, as you will need it for various business activities, such as filing taxes, opening a bank account, and applying for business licenses or permits.

Alternative methods:
If you prefer not to apply online, you can also obtain an EIN by:

1. Fax: Complete Form SS-4, "Application for Employer Identification Number," and fax it to the IRS at (855) 641-6935. You should receive your EIN within four business days.

2. Mail: Complete Form SS-4 and mail it to:
Internal Revenue Service
Attn: EIN Operation
Cincinnati, OH 45999
This method may take up to four weeks for processing.

3. Telephone (for international applicants): If you have no legal residence, principal place of business, or principal office or agency in the U.S. or its territories, you can call the IRS at (267) 941-1099 (not a toll-free number) to apply for an EIN. This service is available from 6 a.m. to 11 p.m. Eastern Time, Monday through Friday.

Remember to check the IRS website for the most up-to-date information, as requirements and processes may change over time. </s>