Tax evasion is a big deal in the US, and accounts for an estimated $300 billion in lost government funds each year. Like it or not, the IRS is technically free to use any public posts on social media during the auditing process or even to profile potential liars. That means you don't want to brag on Twitter about how much money your business is making if you're actually about to go under. Likewise, if you are fudging your taxes (which we don't recommend), you should consider revisiting your account privacy settings, and make sure you're keeping any incriminating evidence to yourself.

Image credit: Stockmonkeys