Where do enter Business Startup Expense? I started my business in the middle of the year. I have Start-up expenses like buying a new computer, and some oversea travel.

This is for TurboTax 2017. The 2 oversea trips is to check with likely backers that can they will become my clients if I do start a business. Since those trips (and a new computer) happened before I start my business, I am not sure where to claim them. There isn't a line called "Startup Expense" or something.... Any help would be much appreciated.