You know not to itemize if your deductions don't exceed the standard deduction. You're not really saving any money, because you get the standard deduction anyway. But you are adding audit bait to your return. Small businesses are targets You may have heard that your chances of being audited go up if you own your own business. Don't use the business to buy yourself a car or pay for a vacation or put your children through school or anything that is personal.
Bookkeeping tends to be lax.
If it can't use your accounting system to reliably trace all income and expenses, it expects you won't be able to do it, either. And that means error or even fraud. If you're worried, put in a good accounting system and stick to it. The IRS will take that as a sign that you are doing your best to comply. There are other areas of potential problems ranging from fringe benefits for the boss to misclassification of workers to avoid paying withholding taxes.