How do I do the standard home purchase deduction while using turbo tax self employed It automatically does it on turbo tax deluxe

[Vanessa A]

A standard home purchase is a personal expense. The cost of the home is not deductible. 

If you are trying to enter your mortgage interest in TurboTax Self-Employed you will click Deductions and Credits>>See All Tax Breaks>>Click Show More next to Your Home then click start next to Mortgage Interest and Refinancing.  Then you will walk through the steps of entering your 1098 for your mortgage interest. 

[Mike9241]

are you referring to the home office deduction where a portion of your home is used exclusively for business purposes? then post back that this is your situation and specifically what you're asking.