If your start-up costs are $5,000 or less, you can expense them all in the first year your business is open. If they are more than $5,000 you have to capitalize the amount in excess of $5,000 and amortize it over 15 years. When you set up your business in TurboTax, you will be prompted to enter your start-up costs. For information on Start-Up Costs see the following:
Here’s how businesses can deduct startup costs from their federal taxes
Start-up Business Tax Tips