All forms of online gambling are licensed by the Gambling Commission and therefore can be legally provided in the country under a licence from the commission. The commission's site has details of both licensed operators and applicants.

It is important to look for an online casino with a good reputation, which offers a wide selection of games, generous bonuses and promotions. Moreover, you should make sure that the casino is licensed and regulated by a reputable gambling authority.

The online casino with the best payouts in the US is BetMGM. This site has an extensive library of 800+ casino games and an overall average RTP of 98.3%.