Straight from the mouth of a US Attorney.
There is NO prohibition against gambling online, and that includes betting on sports. It’s not explicitly legal, but it’s not explicitly illegal either. Here is a concise summary of the key points we’ve covered here.
The Interstate Wire Act targets bookmakers and those who provide betting services, not those who choose to bet on sports. PASPA prevents state governments from passing new laws that authorize sports betting. Four states are exempt from PASPA, including Nevada where both offline and online sports betting is legalized and regulated. The UIGEA makes it illegal to process financial transactions relating to online gambling. There are no federal laws that specifically make it illegal to bet online.
How does all this affect YOU? Well, in our view it means you’re free to bet on sports without the fear of prosecution.
Please note: if you do choose to bet online, it’s important to make sure that you use a betting site that’s operating legally. Since it’s currently illegal to offer online sports betting within the US (excluding Nevada), you need to use an offshore site that’s based in a jurisdiction where online betting is legal and regulated.
Gamblingsites