Tax season – the most nail-biting time of the year – is upon us. With nationwide unemployment below 7% and trending lower, filing volumes are expected to increase to 150 million individual tax returns this year. To match the effort individuals and businesses spend each year doing their taxes and complying with tax laws, it would take more than 3 million full-time workers. No wonder many tax professionals take vacations in late April. All told, tax season – from late January through mid-April – is both big business and big competition for tax professionals and their ad campaigns.