The tax ID number depends on a couple of choices you make. If you have employees then you probably need one, if you don't have employees, then you probably don't. The best bet is to check with a CPA or attorney who's local. It shouldn't cost that much money and it will be worth it to you.
Question added to topic Money • June 12, 2007
Do I need a tax ID number?
I have started a small embroidery business. Do I need a tax ID number?