When you make the decision of going into business for yourself, you'll find that many people who launch small businesses start out as sole proprietors. Here are nine tax rules and considerations involved in operating as that entity. 1. You may qualify for the pass-through deduction. To the extent your business generates qualified business income, you are eligible to claim the 20% pass-through deduction, subject to limitations. The deduction is taken “below the line,” meaning it reduces taxable income, rather than being taken “above the line” against your gross income. However, you can take the deduction even if you don’t itemize deductions and instead claim the standard deduction. 2. Report income and expenses on Schedule C of Form 1040. The net income will be taxable to...