First, terminology matters here. A TIN (Taxpayer Identification Number) sometimes referred to as an ITIN (Individual Taxpayer Identification Number) is for a person that does not have a social security number for whatever reason. Such a number will always begin with the digit "9" and is used in any spot that specifically and explicitly asks for a social security number.
EIN (Employer Identification Number) is used by a business such as yours, and will be entered on the SCH C in the business income and expenses section, when you get to the screen that asks if you have one. The first digit of an EIN will NOT be a 9.
