A Federal Tax ID (EIN) Number, also known as an Employer Identification Number or EIN, is basically a Social Security Number (SSN) for businesses. It is the number the IRS uses to identify the business, and it must be included on all federal tax filings the business makes. Also, banks generally require an EIN to open a business bank account.
Can I reuse the Federal Tax ID (EIN) Number from my sole proprietorship?
If you operate your business as a sole proprietorship or general partnership, your Social Security Number is typically used as the Federal Tax ID Number for your business. When you incorporate or form a limited liability company (LLC), you must obtain a new EIN for your business.
Businesses apply for an EIN by preparing Internal Revenue Service (IRS) Form SS-4 and filing it with the IRS. BizFilings can assist with the obtainment of your company's EIN number from the IRS on your behalf.
Some states also require a State Tax Identification Number. BizFilings can help obtain a State Tax ID Number in states that require one for all business entities. State Tax ID Number form preparation is included in our Complete Incorporation Service in these states, and can be added to the Basic and Standard Incorporation Services. To learn if your state requires a separate number, visit our state guides.
How do I obtain an Individual Tax Identification Number (ITIN)?
If you do not have a Social Security Number, you must have an ITIN in order to apply for an EIN. To obtain an ITIN from the IRS, complete and mail IRS Form W-7. You can get started by printing Form W-7 and the associated instruction sheet.