Even if your business already has a federal Employer Identification Number (EIN), most states require you to register for a unique state tax ID number–and you'll need a state tax ID for each state when you file Form W-2.
Even if your business already has a federal Employer Identification Number (EIN), most states require you to register for a unique state tax ID number–and you'll need a state tax ID for each state when you file Form W-2.