You should include your start-up costs in your tax return. IRS will allow you to deduct up to $5,000 in start-up costs and $5000 in organizational costs. Anything over these amounts will be amortized in future years.
See the article below for a list of what is included in start-up and organizational costs.
http://quickbooks.intuit.com/r/taxes/3-tax-deductions-available-only-to-startup-businesses/ .
After you enter your business profile information, you can enter your start-up costs. See screenshot below.