At the end of the day we all want to have that little bit extra in our pockets, but you have to walk a tightrope when it comes to knowing what items can be deducted and what steps you can take to lower your annual tax burden. Always keep in mind that certain deductions and other information on a tax return may put more eyes on your form that you would want, leading to an extra review from the IRS, and in some cases, a full-blown audit. Here’s what finance experts had to say about tax returns most likely to cause the IRS to consider an audit.