It's quite simple; the more tax deductions your business can legally take, the less tax you will have to pay. That's because the amount of your profit will be lower. In addition to avoiding large tax bills at the end of the year, some of the available tax code provisions will also improve your quality of life. For example, you could have a nicer car to drive at a very small cost, or the ability to combine a business trip with a vacation. But like anything tax-related, you will need to pay close attention to the IRS rule about what is – and what is not – tax deductible.