It is possible that by entering more business expenses into a return that you are affecting your ability to claim Earned Income Credits. The IRS is very adamant however, that if you have a business you "must" list all of your relevant business expenses even if it results in a reduction in the EIC and hurts your tax position. Turbo Tax will not tell you how to optimize your refund for this event, as the rule is you "must" list your business expenses as are, and you cannot push your expenses into another year. What you can do however, if you have "new" assets placed in service for 2015 is work on seeing if you are expensing assets too fast by taking certain section 168 or 179 expensing elections on the "new" assets.
