I've written before about tax-related scams, as criminals have been successful in stealing millions of dollars from unsuspecting taxpayers over the phone and through the internet. Unfortunately, this is the time of year where scams tend to heat up. In fact, the IRS is warning taxpayers of some sophisticated last-minute tax scams to watch out for.Phishing scams generally refer to scams via email, although they can take other forms such as text messages.