Startup costs vs other common business expenses

Last year I started a small business; software development. I purchased a new laptop (~$1500) for that purpose and an extended warranty. I also got Office 365 for it. I also bought a year's subscription to online training on software development. I'm wondering how to allocate this in TurboTax? Would the laptop, extended warranty and Office 365 be a part of startup costs? Since I intend to renew Office 365 this year and each year for the foreseeable future, would it be better to put that under Other Common Business Expenses?