In the fourth installment of our “Sin Tax” series, we explore the financial implications of gambling on Uncle Sam’s bottom line. It’s no secret that the government makes some income from gambling. But, many would be surprised to find that total gaming brings in nearly $100 billion in tax revenue each year. From legal bookmaking to card rooms, the graphic below illustrates where the money comes from. We also take a look at the various tax rates across the U.S., by state and by type of establishment.